Fixed low-frequency pilot analysis for self-calibrated frequency response characterization of electro-absorption modulated lasers

Mengke Wang; Ying Xu; Zhao Liu; Yali Zhang; Zhiyao Zhang; Shangjian Zhang; Yong Liu

doi:10.1117/12.2642300

27 December 2022 Fixed low-frequency pilot analysis for self-calibrated frequency response characterization of electro-absorption modulated lasers

Mengke Wang, Ying Xu, Zhao Liu, Yali Zhang, Zhiyao Zhang, Shangjian Zhang, Yong Liu

Author Affiliations +

Proceedings Volume 12311, Semiconductor Lasers and Applications XII; 1231105 (2022) https://doi.org/10.1117/12.2642300
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

An approach to measuring high-frequency responses of electro-absorption modulated lasers (EMLs) is proposed based on fixed low-frequency pilot analysis. The fixed low-frequency pilot is inserted into the microwave driving signal loaded on the EML through amplitude modulation. Then, the high-frequency response of EML can be obtained by extracting and analyzing the pilot (kHz level) after photodetection, thereby realizing the low-frequency detection for EML measurement. Moreover, the method is independent of the responsivity fluctuation of the photodetector due to the fixed frequency analysis and enables the self-calibrated frequency response measurement of high-speed EML.

Conference Presentation

Citation Download Citation

Mengke Wang, Ying Xu, Zhao Liu, Yali Zhang, Zhiyao Zhang, Shangjian Zhang, and Yong Liu "Fixed low-frequency pilot analysis for self-calibrated frequency response characterization of electro-absorption modulated lasers", Proc. SPIE 12311, Semiconductor Lasers and Applications XII, 1231105 (27 December 2022); https://doi.org/10.1117/12.2642300

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