Synchronization of Two DFB Lasers Using Frequency-Shifted Feedback for Microwave Photonics

被引:2
|
作者
Thorette, Aurelien [1 ]
Romanelli, Marco [1 ]
Vallet, Marc [1 ]
机构
[1] Univ Rennes 1, CNRS, Inst FOTON, UMR 6082, F-35000 Rennes, France
关键词
Injection-locked lasers; semiconductor lasers; microwave photonics; SEMICONDUCTOR-LASER; OPTOELECTRONIC OSCILLATOR; OPTICAL FEEDBACK; INJECTION; SUBJECT; LOCKING;
D O I
10.1109/JQE.2019.2891819
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
The phase synchronization of two semiconductor DFB lasers submitted to both frequency-shifted cross-injection and self-feedback is investigated, both numerically and experimentally. A dedicated setup based on monolithic DFB lasers permits to effectively lock the frequency difference of the two lasers on an external reference over a broad range of parameters. In agreement with a delayed rate equation model, it is shown that the sensitivity of the locking to the optical feedback phases is mitigated by using strong cross-injection thus paving the way to applications for microwave photonics. Other synchronization dynamics can also be observed, such as bounded-phase oscillations.
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页数:8
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