An Active Mode-Locked Optoelectronic Oscillator Based on Direct Intensity Modulation

被引：0

作者：

Fan, Zhiqiang ^{[1
]}

Yang, Yang ^{[1
]}

Su, Jun ^{[1
]}

Zhang, Yongqiang ^{[1
]}

Shi, Shuangjin ^{[1
]}

Wang, Yunxiang ^{[1
,2
]}

Qiu, Qi ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Optoelect Sci & Engn, Chengdu 610054, Peoples R China

[2] Tianfu Jiangxi Lab, Chengdu 641419, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2025年

基金：

中国国家自然科学基金;

关键词：

Microwave oscillators; Modulation; Oscillators; Intensity modulation; Microwave amplifiers; Harmonic analysis; Microwave filters; Microwave communication; Laser mode locking; Frequency modulation; Active time-domain mode locking; direct intensity modulation; optoelectronic oscillator (OEO); PULSE GENERATION; LOCKING;

D O I：

10.1109/LMWT.2025.3584368

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An active time-domain mode-locked (TDML) optoelectronic oscillator (OEO) based on direct intensity modulation of a semiconductor laser is proposed and experimentally demonstrated. The proposed TDML-OEO has the same structure as a conventional single-loop OEO, and the loop gain is modulated periodically by direct intensity modulating a distributed feedback (DFB) laser diode (LD). Matching the loop gain modulation frequency to the OEO free spectral range (FSR), TDML is achieved for OEO. The proposed TDML-OEO features flexible pulse duty cycle tunability and higher order harmonic mode locking. In the experiment, microwave pulses with different duty cycles ranging from 2% to 96% are generated. A 50th-order harmonic mode locking for the TDML-OEO is implemented.

引用

页数：4

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