Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 30,
  • Issue 7,
  • pp. 962-968
  • (2012)

Auto Bias Control Technique Based on Asymmetric Bias Dithering for Optical QPSK Modulation

Not Accessible

Your library or personal account may give you access

Abstract

This paper describes a simple and highly sensitive auto bias control (ABC) technique based on asymmetric bias dithering for optical quadrature phase shift keying (QPSK) modulation and QPSK variants. Using our asymmetric bias dithering proposal, the required bandwidth of the ABC circuit is only ~2fd, where fd is the frequency of dithering, fd < 1 kHz. Thus, the circuit can be constructed without using high-speed components, and bias control performance is not limited by the signal bit rate. In this paper, we detail the concept of asymmetric bias dithering. We describe experiments that confirm bias monitoring and ABC operation, using a 20–64 Gbit/s optical QPSK signal. Its typical penalty is 0.1 dB, and Q factor fluctuation is negligible over 6 h of operation.

© 2012 IEEE

PDF Article
More Like This
Auto bias control technique for optical 16-QAM transmitter with asymmetric bias dithering

Hiroto Kawakami, Takayuki Kobayashi, Eiji Yoshida, and Yutaka Miyamoto
Opt. Express 19(26) B308-B312 (2011)

Auto bias control technique for optical OFDM transmitter with bias dithering

Tao Gui, Cai Li, Qi Yang, Xiao Xiao, Linghen Meng, Chao Li, Xingwen Yi, Chao Jin, and Zhaohui Li
Opt. Express 21(5) 5833-5841 (2013)

Modulation-format-free and automatic bias control for optical IQ modulators based on dither-correlation detection

Xiaolei Li, Lei Deng, Xiaoman Chen, Mengfan Cheng, Songnian Fu, Ming Tang, and Deming Liu
Opt. Express 25(8) 9333-9345 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved