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Relative intensity noise in high-speed hybrid square-rectangular lasers

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Abstract

Relative intensity noise (RIN) and high-speed modulation characteristics are investigated for an AlGaInAs/InP hybrid square-rectangular laser (HSRL) with square side length, rectangular length, and width of 15,300, and 2 μm, respectively. Single-mode operation with side-mode suppression larger than 40 dB has been realized for the HSRL over wide variation of the injection currents. In addition, the HSRL exhibits a 3 dB modulation bandwidth of 15.5 GHz, and an RIN nearly approaches standard quantum shot-noise limit 2hv/P=?164 dB/Hz at high bias currents due to the strong mode selection of the square microcavity. With the increase of the DC bias current of the Fabry–Perot section, significantly enhanced modulation bandwidth and decreased RIN are observed. Furthermore, intrinsic parameters such as resonance frequency, damping factor, and modified Schawlow–Townes linewidth are extracted from the noise spectra.

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DOI:10.1364/prj.6.000193

基金项目:National Key R&D Program of China (2016YFB0402304); National Natural Science Foundation of China (NSFC)10.13039/501100001809 (61235004, 61377105, 61527823).

收稿日期:2017-11-17

录用日期:2018-01-14

网络出版日期:2018-01-15

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Fu-Li Wang:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Xiu-Wen Ma:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Yong-Zhen Huang:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Yue-De Yang:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Jun-Yuan Han:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China
Jin-Long Xiao:State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors & Institute of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100083, China

联系人作者:Yong-Zhen Huang(yzhuang@semi.ac.cn)

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引用该论文

Fu-Li Wang, Xiu-Wen Ma, Yong-Zhen Huang, Yue-De Yang, Jun-Yuan Han, and Jin-Long Xiao, "Relative intensity noise in high-speed hybrid square-rectangular lasers," Photonics Research 6(3), 193-197 (2018)

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