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1×4 Integrated Microlenses High-rate Photodetector Array for Optical Communication Transmission IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-03-08 Xiaowei Yang, Weifang Yuan, Xiaofeng Duan, Xianjie Li, Kai Liu, Yongqing Huang
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Photovoltaic modulating retroreflectors for low power consumption free space optical communication systems IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-03-07 Benjamin C. Maglio, Crisanto Quintana, Yoann Thueux, Peter M. Smowton
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Two-section passively Mode-locked laser as a test for amplification and absorption parameters of a quantum well based InP optical amplifier at 1300 nm IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-03-05 J. Hazan, S. Tondini, A. Nassar, K.A. Williams, E.A.J.M. Bente
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Complex Pulse Profile Optimization by Chromatic Dispersion Management in Coupled Opto-Electronic Oscillator based on Semiconductor Optical Amplifier IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-03-04 Alexis Bougaud, Arnaud Fernandez, Aliou Ly, Stéphane Balac, Olivier Llopis
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Modeling the 3-Micron Class Er-Doped Fluoride Fiber Laser With a Cubic Energy Transfer Rate Dependence IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-03-01 William Bisson, Alexandre Michaud, Pascal Paradis, Réal Vallée, Martin Bernier
We propose an energy transfer model with a cubic atomic population dependence to accurately model the behavior of various reported high-power erbium-doped fluoride fiber lasers operating near 2.8 microns. We first show that the previously introduced weakly interacting (WI) and strongly interacting (SI) models are not adequate for precisely modeling such high-power erbium-doped fluoride fiber lasers
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High Sensitivity Characteristics of Tapered Fiber Plasmon Sensor with Gold Nanoparticles in 1500 nm Wavelength Band IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-22 Masahiro Yamamoto, Tianpeng Ji, Aya Miyazaki, Yuichi Matsushima, Hiroshi Ishikawa, Katsuyuki Utaka
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Self-Consistent Approach for Calculation of VCSEL Spectra Under Deep Microwave Current Modulation IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-20 Alexander P. Bogatov, Alexander E. Drakin, Eugene A. Tsygankov, Maria I. Vaskovskaya, Dmitry S. Chuchelov, Kirill M. Sabakar, Vitaly V. Vassiliev, Sergey A. Zibrov, Vladimir L. Velichansky
We develop a self-consistent approach to calculate the spectra of the vertical-cavity surface-emitting lasers under a deep microwave modulation of the injection current. The treatment consists of solving a coupled system of equations for the concentration of electrons in the active medium and those for the amplitudes of spectral components derived from Maxwell’s equations. Their numerical solution
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Bandwidth Optimization and Fabrication of High-Power MUTC-PD IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-20 Xuejie Wang, Yongqing Huang, Shuhu Tan, Jiawei Du, Mingxi Yang, Kai Liu, Xiaofeng Duan, Xiaomin Ren
A high-speed and high-power modified uni-traveling-carrier photodiode (MUTC-PD) is optimized and fabricated. The optimization method takes carrier transport as the core and considers the hole transport time limited bandwidth of the MUTC-PD for the first time. Taking into account the impact of the electron transport time and RC time constant on device performance, the device is simulated and fabricated
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Freezing the Suspension of Laser Microcrystals—A New Way for Increasing the Luminescence Efficiency Response IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-14 Mikhail A. Shevchenko, Sofia F. Umanskaya, Konstantin I. Zemskov, Nikolay V. Tcherniega, Anna D. Kudryavtseva
In this work, for the first time, the property of particles to form close-packed layer in front of the freezing interface was used to increase the luminescent efficiency response for ruby and titanium-sapphire microcrystals water suspensions. An increase in the efficiency of luminescence response due to an increase in the concentration of particles at the freezing front, can be used for phase transition
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High Temperature Mid-Wave Infrared InAsSb Barrier Photodetectors IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-13 Ting Xue, Jianliang Huang, Yanhua Zhang, Wenquan Ma
We report on mid-wave infrared InAsSb photodetectors with high-barrier materials implemented in the depletion region. The devices exhibit promising performance at high temperature. At 160 K, the 50% cutoff wavelength is $4.18~\mu \text{m}$ , and the shot noise limited detectivity $D^{\star} $ is $1.57\times 10 ^{12}$ cm $\cdot $ Hz $^{1/2}$ /W for the peak wavelength of $3.79~\mu \text{m}$ . At 300
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Corrections to “Optical Pumping and Electrical Injection of a 3.6 μm Interband Cascade Laser” IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-08 Linda J. Olafsen, Kyler A. Stephens, Daniella R. DeVries
In the above article [1] , Fig. 7(b) duplicates Fig. 6(b). The correct Fig. 7(b) is shown as follows.
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Hysteresis Behavior of External Cavity Quantum Cascade Lasers in the Strong Feedback Regime IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-05 Jonas Schundelmeier, Quankui Yang, Stefan Hugger
We experimentally investigate mode hops of a continuous-wave (cw) external cavity (EC) quantum cascade laser (QCL) in Littrow configuration, observing hysteresis for variations of either external cavity length, chip current, or grating angle. The results are compared with two different theoretical models. Simulation results suggest that hysteresis in EC-QCLs is caused by self-stabilization due to mode
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Vertical-Cavity Surface-Emitting Laser Linewidth Narrowing Enabled by Internal-Cavity Engineering IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-05 Zhiting Tang, Chuanlin Li, Feiyun Zhao, Jilin Liu, Aobo Ren, Hongxing Xu, Jiang Wu
Vertical-cavity surface-emitting lasers (VCSELs), featuring the advantages of low energy consumption, miniaturization, and high-beam quality, show potential for various applications from atomic clock to light detection and ranging (LiDAR). A high-performance atomic clock system requires laser linewidths below 10 MHz to ensure compatibility with the natural atomic linewidth (e.g., 5 MHz for cesium)
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Vertical Coupling Effect on Gain Bandwidth of Chirped InAs/InP Quantum Dot Structures IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-02-05 Gaowen Chen, Fujuan Huang, Xiupu Zhang
Quantum dot (QD) devices are usually desired to have a broadband gain spectrum. An alternative solution to achieve a broadband gain in QD devices is to use multiple layers with different QD heights, which are stacked vertically, i.e. a chirped QD structure in the active region. In the chirped stacked QD structure, the vertical strain and electron coupling effect have a significant impact on the optical
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IEEE Journal of Quantum Electronics publication information IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-29
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IEEE Journal of Quantum Electronics information for authors IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-29
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New SOA Design With Large Gain, Small Noise Figure, and High Saturation Output Power Level IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-19 Shuqi Yu, Antonin Gallet, Iosif Demirtzioglou, Sheherazade Lamkadmi Azouigui, Nayla El Dahdah, Romain Brenot
We introduce a semiconductor optical amplifier (SOA) chip with high gain (>40 dB) and high saturation power (>21 dBm) with moderate drive current (1.3A). A design model for optimizing the new dual-section SOA concept is presented. The model predictions are in very good agreement with the measurement results on fabricated chips. Using the gain and saturation output power product as the figure of merit
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Long-Wave Infrared ZnGeP2 Optical Parametric Oscillator With a Wide Tuning Range by Rotating a Diffraction Grating IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-19 Hai Wang, Zhiyong Li, Juntao Tian, Lili Zhao, Rongqing Tan
We report a ZnGeP $_{\mathbf {2}}$ optical parametric oscillator (OPO) with a wide tuning range in the long-wave infrared. The OPO was pumped by a Ho: YLF laser with high peak power, and a resonate cavity with a diffraction grating was used. A tunable long-wave laser with the wavelength of 8.45- $11.37~\mu \text{m}$ was achieved by rotating the grating. Meanwhile, the linewidth was less than 61 nm
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Electro-Optical Feedback for (Nearly) All-Optical Detection IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-08 Tamir Weinstock, Ofer Amrani
Electro-optical feedback circuit is presented and analyzed. The method realizes a closed-loop positive feedback by feeding the electrodes of a Mach-Zehnder interferometer with the voltage produced by its own detection circuit. In its basic form, it is shown to act as a multi-level opto-electric quantizer. The quantization behavior disclosed herein is realized via the opto-electric conversion process
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Modeling of 1.7-μm and 2.4-μm Dual-Wavelength Pumped 4.3-μm Dysprosium-Doped Chalcogenide Fiber Lasers IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-08 Yang Xiao, Jian Cui, Xusheng Xiao, Yantao Xu, Haitao Guo
A novel $1.7 \mu \text{m}$ and $2.4 \mu \text{m}$ dual-wavelength pumping scheme for a $4.3 \mu \text{m}$ dysprosium (Dy3+)-doped chalcogenide fiber laser was theoretically demonstrated. It was attributed to the $2.4 \mu \text{m}$ excited stated absorption (ESA, $^{6}\text{H}_{\mathrm {13/2}} \to ^{6}\text{H}_{\mathrm {9/2}},^{6}\text{F}_{\mathrm {11/2}}$ transition). Theoretically, when the two pumps
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Optimization of Balanced Detector for Coherent Receiver on Generic InP Platform by Particle Swarm Optimization IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2024-01-03 Dhiman Nag, Weiming Yao, Jos J. G. M. Van der Tol
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Photo-Enhanced Room Temperature Magnetism and Two-Photon Effects in Manganese-Implanted Gallium Nitride p-i-n Structures IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-12-29 John A. Carlson, Fu-Chen Hsiao, Andrey Mironov, P. Scott Carney, John M. Dallesasse
The insertion of manganese into GaN-based p-i-n epitaxial structures allows for a ferromagnetic phase to occur at room temperature that can be photo-enhanced and retained for >8 hours. GaN p-i-n LED structures are implanted with manganese to form a ferromagnetic phase and illuminated with resonant photons across the GaN bandgap. The magnetization after illumination is found to increase by $0.2~\mu
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Steady-State Semi-Analytical Modeling of p-Doped Quantum Dot Lasers Thermal Characteristics and Extrapolation to Membrane Lasers IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-12-13 Mattéo Chobé, Karim Hassan
We present a rate equation model for the simulation of quantum dot lasers focusing on modeling the thermal behavior of p-doped devices, which are known to exhibit a reduced temperature sensitivity. The simulation results are compared with experimental data from the literature to demonstrate the model accuracy and underline the impact of npp Auger recombination and intervalence band absorption on the
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A Method for Determining the Formation Position of Comb Tooth of Kerr Micro-Ring IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-11-28 Hang Shen, Chaoying Zhao
Realizing quantum micro-comb in micro-resonators has attracted continuous research effort. Kerr micro-combs generated from a micro-ring device can offer an enormous number of coherent wavelengths. The formation position of comb teeth (FPOCT) has been detected in experimental by the non-degenerate optical parametric oscillation OPO process. In this paper, we put forward a method for determining the
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Carrier Transport and Pulse Compression of an Opposed-Contact GaAs Photoconductive Switch at Low-Energy Optical Excitation IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-11-28 Chun Liu, Ming Xu, Chengjie Wang, Shengtao Chen, Jiahao Chang, Wenhao Wang
The photoconductive semiconductor switch (PCSS) is one of the most promising devices in pulsed power technology, and its transient output characteristics strongly depend on the internal photo-generated carrier transport. In this paper, the transient output characteristics of an opposed-contact GaAs PCSS are obtained at 3.0-5.35 kV at low-energy optical excitation. In contrast to the 8 ns optical pulse
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Mitigating the Effects of Concave Damage by Adding a Lining Layer in a Ring-Core Fiber for Improving Propagation of Orbital Angular Momentum Modes IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-11-14 Xiaohui Wang, Yongze Yu, Dongdong Deng, Shuai Mao, Yang Wang, Haoyu Gu, Yingxiong Song, Fufei Pang, Liyun Zhuang, Song Yang, Xiaofeng He, Chao Wang, Tiezhu Zhu, Yudong Yang
In order to support the transmission of orbital angular momentum (OAM) modes effectively, the ring-core fiber has received a lot of attention due to the similar structure of the electric field distribution with the intensity profile of OAM mode. Both photonic crystal fibers and other micro-structured fibers almost contain a ring-core structure to support the transmission of more OAM modes. However
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Solar-Blind Deep UV Avalanche Photodetectors Using Reduced Area Epitaxy IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-23 Lakshay Gautam, Junhee Lee, Michael Richards, Manijeh Razeghi
We report high gain avalanche photodetectors operating in the deep UV wavelength regime. The high gain was leveraged through reduced area epitaxy by patterning AlN on Sapphire substrate. This helps in a substantial reduction of crack formation due to overgrowth on individually isolated AlN mesas. Reproducible gain on the order of 105 was reported for multiple diodes in different areas of $320\times
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High-Resolution Thermal Profiling of a High-Power Diode Laser Facet During Aging IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-19 Luyang Wang, Aman Kumar Jha, Salmaan H. Baxamusa, Jack Kotovsky, Robert J. Deri, Rebecca B. Swertfeger, Prabhu Thiagarajan, Mark T. Crowley, Gerald Thaler, Jiyon Song, Kevin P. Pipe
We study the facet temperature distribution of a high-power diode laser over its lifetime using a noncontact, high spatial resolution CCD-based thermoreflectance technique. Based on the known correlation between non-radiative defects and heating, thermal maps can provide valuable information regarding the formation and evolution of small point defects that are at or near the facet during aging. In
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Receptive Field-Based All-Optical Spiking Neural Network for Image Processing IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-19 Taiyi Chen, Yu Huang, Pei Zhou, Penghua Mu, Shuiying Xiang, V. N. Chizhevsky, Nianqiang Li
We report on a novel structure of a receptive field (RF)-based multi-layer all-optical neural network using a micropillar laser with a saturable absorber (SA) for image processing. From the perspective of biological vision, the realization of image processing based on the RF provides the biological rationality for the machine vision implemented by the spiking neural network (SNN). By exploiting the
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AlGaInP-Based Visible Red Photonic Crystal Surface Emitting Lasers Without Regrowth IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-17 Tsung-Yeh Ku, Chi-Hao Wang, Ming-Chin Hsieh, Gray Lin
AlGaInP-based visible red photonic crystal (PC) surface emitting lasers (SELs) without regrowth were demonstrated for the first time. Square-latticed and circular-shaped holes were deeply etched to form the air-pillar PC structure, where indium-tin-oxide was deployed to facilitate both current injection and laser light transmission. The optically pumped and electrically injected PC-SELs lased in wavelength
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Theoretical Simulation of Extended Mid-Wave Infrared High Operating Temperature InSb pBn Photodetectors IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-17 Yinlin Zhang, Chuang Li, Daqian Guo, Keming Cheng, Kai Shen, Jiang Wu
The application of the barrier architecture exhibits the potential in reducing the noise current and improving the performance of photodetectors. However, the development of mid-infrared InSb barrier detector is lagging far behind its III-V counterparts due to the problem of lattice mismatch. In this paper, we proposed two InSb barrier detectors that have reduced dark current and raised operating temperatures
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A Design Approach for a Homogeneous Hole-Assisted Multi-Core Fiber Through Hole-Allocation Around the Central Core for Minimizing Crosstalk IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-10-09 Sonali Basak, Santu Sarkar, Abhijit K. Mukhopadhyay, Nikhil Ranjan Das, Madhusudan Mishra
In this paper, a new design of seven-core hole-assisted multi-core fiber with surrounding each core is presented. Here, the holes are assumed to be filled with materials having very low refractive index contrast with cladding. Coupling of light from the central core to the outer cores of seven-core structure is investigated by rotating the holes in the range +30° to −30° around the central core. The
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60 nm Widely Tunable Three Section Slot Laser IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-25 Jack Mulcahy, John McCarthy, Frank H. Peters, Xing Dai
This paper presents a tunable single mode Dual-mirror Slotted Fabry Pérot (DSFP) laser with near 60 nm tuning of the wavelengths between 1530 nm to 1590 nm. The laser modes measured demonstrate high SMSR lasing exceeding 30 dB with SMSRs as high as 45 dB. The electrical tuning of the laser facilitates more than 20 nm of continuous 50 GHz channel spacing between 1545 nm and 1565 nm. Additional thermal
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A PAM-4 100 Gbps Single-Drive Strained SiGe Optical Lumped Mach-Zehnder Modulator for O-Band Application IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-25 Youngjoo Bae, Seong Ui An, Taewon Jin, Younghyun Kim
We propose the carrier-depletion type strained SiGe optical lumped Mach-Zehnder modulators (MZMs) with L-shape PN junction (LSPN) with a highly CMOS-compatible fabrication method. The device performance is numerically investigated and optimized by technology computer-aided design (TCAD) simulation. The optimized SiGe LSPN MZ modulator exhibits a high modulation efficiency of 0.52 Vcm for $V_{\pi }L$
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High-Power III–V/Si Integrated Wavelength Tunable Laser for L-Band Applications IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-25 Changpeng Li, Shaoshuai Sui, Feng Gao, Yiming Wang, Xiao Xu, Jia Zhao
We demonstrate a III-V/Si widely wavelength tunable laser covering the entire L-band for the optical communication systems. By carefully designing the silicon ring filter, low threshold current and high output power are expected. Using the standard silicon photonic process, the silicon filter chip is fabricated and compactly packaged with a reflective semiconductor optical amplifier. The low threshold
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Vulnerability in Free Space QKD Due to Detection Coupling Mismatch IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-25 Tanya Sharma, Ayan Biswas, Pooja Chandravanshi, Shashi Prabhakar, Ravindra P. Singh
Practical implementations of QKD protocols involve devices which are not perfect, and an eavesdropper may exploit this to gain information leading to attacks. Here we have considered the effects of coupling mismatch between the detectors. We find possible information leakage to Eve due to coupling mismatch at the receiver’s detectors in terms of mutual information between the eavesdropper and receiver
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Multi- and Dual-Wavelength Laser at S-Band by Incorporating All-Fiber Lyot Filter in Tm3+-Doped ZBLAN Fiber: A Millimeter-Wave Generation Toward 5-G Communication IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-22 H. Ahmad, B. Nizamani, M. Z. Samion, M. Z. Zulkifli
In this work, we have demonstrated the generation of multi- and dual-wavelength fiber lasers at the S-band using an all-fiber-based Lyot filter in a thulium-doped fluoride fiber laser. The Lyot filtering mechanism was first realized at S-band using a polarizer, two polarization controllers, and a 20-m polarization-maintaining fiber. About 13 lasing lines were observed at the S-band covering the wavelength
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Watt-Level Pr3+:LiYF4 Novel Green Lasers at 519 nm, 538 nm, and 550 nm IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-14 Yuchen Xue, Zhengdong Dai, Weihang Cao, Zhongyu Wang, Bo Xiao, Huiying Xu, Zhiping Cai
We report the first demonstration on three new wavelengths of 519 nm, 538 nm, 550 nm in the $\sigma $ -polarized direction based on continuous-wave (CW) Pr3+:LiYF $_{\mathbf {4}}$ laser. The transitions mechanism combined dual upper energy levels of $^{3}\text{P}_{\mathbf {1}}$ and $^{3}\text{P}_{\mathbf {0}}$ with Stark sub-levels of $^{3}\text{H}_{\mathbf {5}}$ was proposed. The CW lasers achieve
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Low Threshold, Long Wavelength Interband Cascade Lasers With High Voltage Efficiencies IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-11 Jeremy A. Massengale, Yixuan Shen, Rui Q. Yang, Samuel D. Hawkins, Aaron J. Muhowski
We report on the substantial advancement of long wavelength InAs-based interband cascade lasers (ICLs) utilizing advanced waveguides formed from hybrid cladding layers and targeting the 10- $12~\mu \text{m}$ wavelength region. Modifications in the hole injector have improved carrier transport in these ICLs, resulting in significantly reduced threshold voltages ( $\text{V}_{\text {th}}$ ) as low as
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A New Approach to Analyze Nonlinear Propagation in Arbitrary RI Fiber and Study of Dynamic Dispersion Shifting and Flattening IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-11 Protik Roy, Mitali Sahu, Partha Roy Chaudhuri
In this article, we present a new approach to study the nonlinear wave propagation along fibers having any arbitrary refractive index profile. Our algorithm devised in a finite difference platform, yields the dispersion properties precisely as applied to the representative cases. We show, by varying applied peak power, the zero dispersion wavelength (ZDW) can be shifted towards 1550 nm wavelength window
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Demonstration of Ultraviolet μLED Array With Novel Electrical Contact Etch Mask IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-01 Matthew Seitz, Matthew Hartensveld, Bryan Melanson, Jacob Boisvere, Jing Zhang
We report on the realization of a uniform array of electrically driven, individually addressable micro light-emitting diodes ( $\mu $ LEDs) with diameters of $2.5~\mu \text{m}$ emitting at 372 nm. This highly ordered array was fabricated via a top-down fabrication approach using a novel Ni/Au/Ni structure which combines both a Ni/Au low-resistance electrical contact and durable Ni etch mask. The use
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Nonlinear Dynamics Tailored by Spin-Polarized Carriers in Semiconductor Vertical-Cavity Surface-Emitting Lasers IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-09-01 Qing Fang, Huiming Wang, Hanxu Zhou, Can Jiang, Weizheng Di, Gaofeng Xu, Tao Wang
Spin-polarized carriers generated in semiconductor cavities by electrical injection or circularly polarized light, favour the realization of newly developed spin-VCSELs. Such light sources have been considered as a type of information carrier, which can supply the enhanced performance for communications and signal processing. In this work, we provide a numerical investigation of the nonlinear dynamics
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Temperature Dependence of Nonlinear Pulse Reshaping Towards Parabolic Shape for a Silicon Core Single Mode Optical Fiber IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-30 Binoy Krishna Ghosh, Dipankar Ghosh, Mousumi Basu
Normal dispersion highly nonlinear silicon core fibers (NDHNSCF) are designed and optimized within the single mode regime with the goal of generating stable parabolic pulses (PP) compatible with chip-scale devices. The research focuses on identifying optimal pulse parameters and essential gain value, enabling the formation of parabolic pulses within a short fiber length (~ cm) while maintaining stability
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Experimental Shot Noise Measurement Using the Imperfect Detection—A Special Case for Pulsed Laser IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-24 Anju Rani, Jayanth Ramakrishnan, Tanya Sharma, Pooja Chandravanshi, Ayan Biswas, Ravindra P. Singh
Measuring the quantum fluctuations of a laser source is the first task in performing continuous variable quantum key distribution protocols. The quantum fluctuations of the source are measured using balanced homodyne detection. In this paper, we have measured the shot noise of a pulsed laser using imperfect homodyne detection. The imperfections accounted for in the detection process are a delay between
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Experiments on the Generation of Higher-Order Hermite-Gaussian Pulses From an FM Mode-Locked Laser IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-14 Masataka Nakazawa, Masato Yoshida, Toshihiko Hirooka
We experimentally generated higher-order Hermite-Gaussian (HG) pulses from an FM mode-locked laser that had a specific optical filter $F_{HG{\mathrm {m}}}(\omega)$ characterized by a Bessel function $J_{n}\mathit {(M_{PM}})$ and $A_{HG{\mathrm {m}}}(\omega)$ and $A_{HG\mathrm {m}}(\omega +n\Omega _{m})$ with n = $- \infty \sim $ + $\infty $ . Here, $M_{PM}$ is the phase-modulation index and $A_{HG\mathrm
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Soft Aperture Spatial Filtering: 1.5W in a Single Spatial Mode From a Highly Multi-Mode Laser Diode in an External Cavity IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-07 Mallachi-Elia Meller, Idan Parshani, Leon Bello, David Goldovsky, Amir Kahana, Avi Pe’er
Broad area laser diodes are attractive for the high optical power they can produce. Unfortunately, this high power normally comes at the cost of severely reduced spatial coherence since the wide area of the diode wave-guide is inherently spatially multi-mode along the slow axis. We demonstrate a method to significantly improve the spatial coherence of a high-power broad-area diode by placing it in
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Entangled Photon Pair Source Demonstrator Using the Quantum Instrumentation Control Kit System IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-07 Si Xie, Leandro Stefanazzi, Christina Wang, Cristián Peña, Raju Valivarthi, Lautaro Narváez, Gustavo Cancelo, Keshav Kapoor, Boris Korzh, Matthew D. Shaw, Panagiotis Spentzouris, Maria Spiropulu
We report the first demonstration of using the Quantum Instrumentation and Control Kit (QICK) system on RFSoC-FPGA technology to drive the electro-optic intensity modulator that generate time-bin entangled photon pairs and to detect the photon signals. With the QICK system, we achieve high levels of performance metrics including coincidence-to-accidental ratio exceeding 150, and entanglement visibility
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Corrections to “Surface Leakage Behaviors of 2.6 μm In0.83Ga0.17As Photodetectors as a Function of Mesa Etching Depth” IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-02 Yage Liu, Yingjie Ma, Xue Li, Yi Gu, Yonggang Zhang, Haimei Gong, Jiaxiong Fang
In the above article [1] , the affiliations were written as: The authors are with the State Key Laboratories of Transducer Technology, Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China (e-mail: mayingjie@mail.sitp.ac.cn; lixue@mail.sitp.ac.cn).
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Simultaneous Coherent Detection With Baseband Enhancement in Chaotic Random Bit Generation by an Optically Injected Laser IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-08-02 Jingya Ruan, Sze-Chun Chan
Optical injection into a semiconductor laser invokes chaos that is coherently detected without direct detection for fast random bit generation (RBG). Originating from the injection without any feedback, the chaos contains no undesirable time-delay signature. Although the injection dynamics only supports a low dimensionality of three, simultaneous coherent detection uses the two dimensions of intensity
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Post-Process Frequency Tuning of Single-Mode Quantum Cascade Laser at 4.7 THz IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-27 Tudor Olariu, Mattias Beck, Jérôme Faist
We present a systematic study of the optical design, fabrication, and characterization of quantum cascade laser devices with a frequency around 4.7 THz, intended for use as local oscillators in the GREAT heterodyne receiver aboard SOFIA (Heyminck, et al., 2012), (Risacher et al., 2018). The measured devices exhibit consistent spectral performance, with approximately 75% of them having their emission
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Deep Residual Learning Recognition of Orbital Angular Momentum Superpositions Over Oceanic Turbulence Using a Cubic Phase IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-19 Linzhou Zeng, Yongchang Gao, Qiang Tang, Man Wu, Zhaoming Luo, Yougang Ke, Xinxing Zhou
Orbital angular momentum (OAM) is an important property of light that has attracted considerable attention for increasing the system capacity of optical wireless communications. In undersea communication scenarios, the presence of ocean turbulence distorts the propagating beams and thereby degrades the OAM recognition performance. In order to realize high-fidelity OAM-based data transmission, we propose
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Polarization Modulation in Quantum-Dot Spin-VCSELs for Ultrafast Data Transmission IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-19 Christos Tselios, Panagiotis Georgiou, Christina Politi, Antonio Hurtado, Dimitris Alexandropoulos
Spin-Vertical Cavity Surface Emitting Lasers (spin-VCSELs) are undergoing increasing research effort for new paradigms in high-speed optical communications and photon-enabled computing. To date research in spin-VCSELs has mostly focused on Quantum-Well (QW) devices. However, novel Quantum-Dot (QD) spin-VCSELs, offer enhanced parameter controls permitting the effective, dynamical and ultrafast manipulation
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Polarized Vertical-Cavity Surface-Emitting Laser Arrays With Asymmetrical Structures for Three-Dimensional Sensing With Polarization Imaging IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-14 Jing Zhang, Wanhua Zheng, Anjin Liu
Three-dimensional (3D) sensing with polarization imaging has a high signal to noise ratio and detection accuracy. In this paper, the polarization characteristics and far field patterns (FFPs) of the vertical-cavity surface-emitting lasers (VCSELs) and their arrays with rhomboidal, circular, elliptical, and rectangular mesas are fabricated and measured, targeting the application in the 3D sensing with
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Optical Amplification in Er-Doped LiNbO3-on-Insulator Photonic Wire Pumped at 1480 nm Wavelength IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-12 Feng Chen, Qing Xu, Fan-Song Meng, D. Zhang
$1.5~\mu $ m optical amplification in a ridge-type Er-doped LiNbO3-on-insulator (Er:LNOI) photonic wire (PW) pumped at 1480 nm wavelength is studied theoretically. The study considers a three-level Er3+ model with inclusion of excited-state absorption and cooperative upconversion. Based on the model, steady-state rate equations and pump/signal power propagation equations have been established, and
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Iris Flower Recognition Using Four-Channels Ring Photonic Reservoir Computing Based on Unidirectional Coupled VCSELs IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-04 Qian Yu, Shui Ying Xiang, Xing Xing Guo, Ya Hui Zhang, Bi Ling Gu, Yanan Han, Ziwei Song, Yue Hao
In this paper, a ring Four-channels reservoir computing (RC) based on unidirectional coupled vertical cavity surface emitting lasers (VCSELs) is proposed and demonstrated numerically. Here, the ring four channels are realized by four VCSELs for the first time. Such proposed RC system is employed to solve the Iris flower classification task, and the highest classification accuracy achieved at 100%.
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Link Optimization of a Microwave Photonic Phase Shifter Using Brillouin-Induced Low Biasing IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-07-04 Reena Parihar, Rajveer Dhawan, Amol Choudhary
In this paper, we demonstrate a microwave photonic phase shifter using stimulated Brillouin scattering with Brillouin-induced low biasing of the carrier to improve the dynamic range of operation and the noise performance. Mathematical expressions for the analog photonic link’s performance metrics are derived and experimentally optimized for the first time for a Brillouin-based microwave photonic phase
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High-Gain InAlGaAs Quaternary Quantum Wells for High-Power 760 nm Two-Junction VCSELs IEEE J. Quantum Elect. (IF 2.5) Pub Date : 2023-06-28 Yan Li, Feiyun Zhao, Zhiting Tang, Chuanlin Li, Jilin Liu, Aobo Ren, Hao-Chung Kuo, Jiang Wu
In this work, we propose a high-performance 760 nm vertical-cavity surface emitting laser (VCSEL) for oxygen sensing. Compared to the conventional single mode 760 nm VCSEL with small aperture and low power output, we demonstrate a high-power VCSEL by employing In0.15Ga0.65Al0.2As quaternary strained quantum wells and a tunnel-junction-connected structure. Through combining with the strained quantum