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Analog light signal based opto-electronic ring-oscillator and tunable oscillation frequency
Current Applied Physics ( IF 2.4 ) Pub Date : 2021-07-07 , DOI: 10.1016/j.cap.2021.06.009
Minjong Lee 1 , Hyoungjoo Nam 2 , Young Tack Lee 1, 3
Affiliation  

This paper demonstrates opto-electronic ring-oscillator constructed by an odd number of opto-electronic inverters for the digital (electric) and analog (light) signals based on mixed-signal communications. The opto-electronic inverter is consisting of light-emitting and light-receiving parts which can be regarded as a digital-to-analog and an analog-to-digital converters, respectively. To investigate the light-signal processing properties, the oscillation frequency (fosc) studies were performed by controlling three different parameters of load resistors (RL), light wavelengths (λ), and photosensor type. The smaller RL or the shorter λ of the light signal brings the faster fosc in opto-electronic ring-oscillator. In addition, the photodiode-based opto-electronic ring-oscillator shows much faster signal processing characteristics than the case of CdS sensor. Our opto-electronic ring-oscillators show a wide range of tunable fosc from 0.92 Hz to 114.42 Hz; moreover, it shows small signal-like light transfer characteristics as an analog signal process that can be useful in future opto-electronic device applications.



中文翻译:

基于模拟光信号的光电环形振荡器和可调振荡频率

本文展示了由奇数个光电逆变器构成的光电环形振荡器,用于基于混合信号通信的数字(电)和模拟(光)信号。光电逆变器由发光部分和受光部分组成,分别可视为数模转换器和模数转换器。为了研究光信号处理特性,通过控制负载电阻器 (R L )、光波长 (λ) 和光电传感器类型的三个不同参数来进行振荡频率 (f osc ) 研究。光信号的R L越小或λ越短,f osc越快在光电环形振荡器中。此外,基于光电二极管的光电环形振荡器显示出比 CdS 传感器更快的信号处理特性。我们的光电环形振荡器具有从 0.92 Hz 到 114.42 Hz的广泛可调 f osc;此外,它作为模拟信号过程显示出类似小信号的光传输特性,可用于未来的光电设备应用。

更新日期:2021-07-09
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