Automatic polarization control in optical sampling system

Zhao Zhao*, Aiying Yang, Lihui Feng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In an optical sampling system for high-speed optical communications, polarization controlling is one of the most important parts of the system, regardless of nonlinear optical sampling or linear optical sampling. A simple method based on variance calculation of sampled data is proposed in this paper to tune the wave plates in a motor-driven polarization controller. In the experiment, an optical sampling system base on SFG in PPLN is carried for a 10Gbit/s or beyond optical data signal. The results demonstrate that, with the proposed method, the error of estimated Q factor from the sampled data is least, and the tuning time of optimized polarization state is less than 30 seconds with the accuracy of ±1°.

Original languageEnglish
Title of host publication2015 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptoelectronic Devices and Optical Signal Processing, OIT 2015
EditorsJian Wu, Yi Dong, Chao Lu, Zhaohui Li
PublisherSPIE
ISBN (Electronic)9781628418002
DOIs
Publication statusPublished - 2015
Event2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, OIT 2015 - Beijing, China
Duration: 17 May 201519 May 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9619
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, OIT 2015
Country/TerritoryChina
CityBeijing
Period17/05/1519/05/15

Keywords

  • auto-polarized adjustment
  • eye diagram
  • optical sampling system
  • variance calculation

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