Study on the stable output method of Mach-Zehnder frequency domain depolarization system

Guo-chao Li; Xing-bang Zhu; Feng Fei

doi:10.1117/12.2587654

12 March 2021 Study on the stable output method of Mach-Zehnder frequency domain depolarization system

Guo-chao Li, Xing-bang Zhu, Feng Fei

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 1176396 (2021) https://doi.org/10.1117/12.2587654
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

In this paper, a series of research on the stable output method of Mach-Zehnder frequency domain depolarization system is carried out. Based on the analysis of Mach-Zehnder frequency domain depolarization technology and DOP measurement technology, it is pointed out that the instability of DOP of the depolarization system has an adverse effect on the calibration of the DOP meter with the extremum search method. It is clear that the instability problem is mainly due to the accurate alignment deviation of optical fiber. As a result, a set of solutions to improve the stability is proposed and verified by experiments. The technical core of this scheme is to extend the SOP of the depolarization system from half range control to full range control, reduce the correlation between SOP control and power control, and overcome the problem of optical fiber axis deviation in conventional technology. Through the experimental verification, the Mach-Zehnder frequency domain depolarization system based on the scheme proposed in this paper can effectively control the stability of the DOP of the output light within ± 0.1%, which can effectively calibrate the DOP meter with the extremum search method.

Citation Download Citation

Guo-chao Li, Xing-bang Zhu, and Feng Fei "Study on the stable output method of Mach-Zehnder frequency domain depolarization system", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 1176396 (12 March 2021); https://doi.org/10.1117/12.2587654

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