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Proceedings Paper

Narrow linewidth parallel hybrid-integrated optical injection locking DFB laser
Author(s): Zuye Lu; Jie Zeng; Changsheng Wang; Shijian Guan; Yunshan Zhang; Xiangfei Chen
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Paper Abstract

A parallel hybrid-integrated optical injection locking (PHOIL) DFB laser with narrow linewidth is experimentally demonstrated by using REC technology. The linewidth of the PHOIL DFB laser is significantly narrowed under the injection locking state. The linewidth of the PHOIL DFB laser is measured to be under 100 kHz, compared with 1034.2 kHz under free running state. The narrowest linewidth of the PHOIL DFB laser can be as low as 31.9 kHz. The nonlinear distortions of the PHOIL DFB lasers, including third-order intermodulation distortion (IMD3) and spurious-free dynamic range (SFDR), are also suppressed significantly. The IMD3 is reduced by 4.33 dB and SFDR is also increased from 77.63 dB·Hz2/3 to 82.71 dB·Hz2/3.

Paper Details

Date Published: 19 November 2019
PDF: 8 pages
Proc. SPIE 11182, Semiconductor Lasers and Applications IX, 111820N (19 November 2019); doi: 10.1117/12.2537564
Show Author Affiliations
Zuye Lu, Nanjing Univ. (China)
Jie Zeng, Nanjing Univ. (China)
Changsheng Wang, Nanjing Univ. (China)
Shijian Guan, Nanjing Univ. (China)
Yunshan Zhang, Nanjing Univ. of Posts and Telecommunications (China)
Xiangfei Chen, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 11182:
Semiconductor Lasers and Applications IX
Ning Hua Zhu; Werner H. Hofmann; Jian-Jun He, Editor(s)

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