A monolithically integrated dual-mode laser for photonic microwave generation and all-optical clock recovery

被引:3
|
作者
Yu, Liqiang [1 ]
Zhou, Daibing [1 ]
Zhao, Lingjuan [1 ]
机构
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100086, Peoples R China
基金
中国国家自然科学基金;
关键词
photonic microwave generation; semiconductor laser; dual-mode laser diode; all-optical clock recovery; DISTRIBUTED-BRAGG-REFLECTOR; MODULATOR;
D O I
10.1088/1612-2011/11/9/095404
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate a monolithically integrated dual-mode laser (DML) with narrow-beat-linewidth and wide-beat-tunability. Using a monolithic DFB laser subjected to amplified feedback, photonic microwave generation of up to 45 GHz is obtained with higher than 15 GHz beat frequency tunability. Thanks to the high phase correlation of the two modes and the narrow mode linewidth, a RF linewidth of lower than 50 kHz is measured. Simulations are also carried out to illustrate the dual-mode beat characteristic. Furthermore, using the DML, an all-optical clock recovery for 40 Gbaud NRZ-QPSK signals is demonstrated. Timing jitter of lower than 363 fs (integrated within a frequency range from 100 Hz to 1 GHz) is obtained.
引用
收藏
页数:6
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