We report on the generation and transmission of millimeter-wave (MMW) beat-tone at 28 GHz from an external injection-locked InAs/InP quantum-dash laser-based comb source emitting in mid L-band. The MMW beat-tone exhibited a narrow linewidth, and low phase noise of ~ −122 dBc/Hz at 1.0 MHz offset frequency, thus demonstrating superior characteristics. Thereafter, we achieved a successful transmission of 2 Gbps quadrature-phase-shift-keying (QPSK) signal over 28 GHz MMW beat-tone carrier on 4 m wireless channel as well as 20 km single-mode fiber and 4 m wireless hybrid channel, exhibiting receiver sensitivities of −1.0 and −0.5 dBm, respectively. This demonstration paves the way for the potential deployment of this new-class of MMW photonic source in future passive optical networks and 5G, enabling exploiting hybrid architectures and extended L-band wavelength operation besides the conventional C-band.

我们报告了在中L波段发射的基于外部注入锁定InAs / InP量子破折号激光器的梳状光源在28 GHz处产生和传输毫米波（MMW）拍音的情况。MMW拍音呈现出较窄的线宽，并且在1.0 MHz的偏移频率下具有〜-122 dBc / Hz的低相位噪声，因此表现出出色的特性。此后，我们在4 m无线信道以及20 km单模光纤和4 m无线混合信道上，通过28 GHz MMW拍频载波成功实现了2 Gbps正交相移键控（QPSK）信号的传输，分别具有-1.0和-0.5 dBm的接收器灵敏度。该演示为在未来的无源光网络和5G中潜在地部署这种新型MMW光子源铺平了道路。