A feedback system for the stability improvement of optical frequency comb generating system based on a single integrated PM-DMZM

Wei Wang; Xiangchuan Wang; Angran Zhao; Dan Zhu; Zhiwen Chen; Shilong Pan

doi:10.1117/12.2522579

14 February 2019 A feedback system for the stability improvement of optical frequency comb generating system based on a single integrated PM-DMZM

Wei Wang, Xiangchuan Wang, Angran Zhao, Dan Zhu, Zhiwen Chen, Shilong Pan

Author Affiliations +

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104837 (2019) https://doi.org/10.1117/12.2522579
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

Optical frequency combs (OFCs) have discrete optical spectra with equidistant spacing and equal intensities over a broad spectral range. In recent year, OFCs have been widely researched in many areas. However, the traditional methods of generating optical frequency comb are suffered from the long-term instability. In this article, a feedback system of the stability improvement of optical frequency comb (OFC) generating system based on a single integrated polarization multiplexing dual-drive Mach-Zehnder modulator (PM-DMZM) is proposed. The effect of the fluctuation of the halfwave voltage on the amplitude of the OFC spectra is analyzed. The proportion between the optical power of OFC and the optical carrier power of OFC is used as a feedback parameter to guarantee the simplicity and effectiveness. The stability of the proposed OFC system based on PM-DMZM is also analyzed by the numerical simulation. The results show that the flatness of 7-line OFC is improved for about 3 dB when only the bias voltage is regarded as the controlled parameter. In addition, the flatness of OFC can be improved for about 10 dB when the bias voltage and the amplitude of the modulated RF signal are all used as the controlled parameters simultaneously.

Citation Download Citation

Wei Wang, Xiangchuan Wang, Angran Zhao, Dan Zhu, Zhiwen Chen, and Shilong Pan "A feedback system for the stability improvement of optical frequency comb generating system based on a single integrated PM-DMZM", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104837 (14 February 2019); https://doi.org/10.1117/12.2522579

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available