Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 27,
  • Issue 23,
  • pp. 5348-5355
  • (2009)

Asymmetric Half-Wave Plate Configuration of PLC Mach–Zehnder Interferometer for Polarization Insensitive DQPSK Demodulator

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel polarization dependent frequency shift (PDf) reduction method for fabricating a silica-based PLC DQPSK demodulator incorporating an asymmetrically positioned half-wave plate, and demonstrate error-free 43-Gbit/s demodulation for any incident SOP. The PDf has a detrimental effect on the demodulation performance of a DQPSK signal, and it is degraded by various kinds of PLC fabrication errors. In this paper, we focus on the polarization crosstalk in the coupler, which is one of the main causes of PDf. To eliminate such PDf, we controlled both the position of the half-wave plate in the MZI and the polarization of the propagated light. We describe the principle of this PDf reduction method in detail and provide a theoretical and experimental discussion. In addition, we describe a compact DQPSK demodulator composed of a single MZI based DQPSK demodulator with a 90-degree optical hybrid. This demodulator configuration can reduce the receiver's footprint. Finally we achieved a compact DQPSK demodulator with a low PDf of less than 0.10 GHz in the L-band.

© 2009 IEEE

PDF Article
More Like This
Photonic crystal fiber based Mach-Zehnder interferometer for DPSK signal demodulation

Jiangbing Du, Yongheng Dai, Gordon K. P. Lei, Weijun Tong, and Chester Shu
Opt. Express 18(8) 7917-7922 (2010)

Polarization insensitive 25-Gbaud direct D(Q)PSK receiver based on polymer planar lightwave hybrid integration platform

Jin Wang, Crispin Zawadzki, Nelson Mettbach, Walter Brinker, Ziyang Zhang, Detlef Schmidt, Norbert Keil, Norbert Grote, and Martin Schell
Opt. Express 19(13) 12197-12207 (2011)

Polarization-dependent curvature sensor based on an in-fiber Mach-Zehnder interferometer with a difference arithmetic demodulation method

Changyu Shen, Chuan Zhong, Yang You, Jinlei Chu, Xin Zou, Xinyong Dong, Yongxing Jin, Jianfeng Wang, and Huaping Gong
Opt. Express 20(14) 15406-15417 (2012)

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