ID 109979
Author
Chen, Lawrence R. Department of Electrical and Computer Engineering at McGill University
Keywords
Optical processing
modulation format
four-wave mixing
PDM-QPSK
PDM-BPSK
Content Type
Journal Article
Description
Flexible conversion between multi-level modulation formats is one of the key processing functions to realize adaptive modulation techniques for flexible networking aimed at high spectral efficiency in optical fiber transmission. The authors have proposed an all-optical format conversion systems from binary phase-shift keying (BPSK) to quadrature PSK (QPSK) and its reverse conversion from QPSK to BPSK. The latter had an advantage of wavelength-shift-free conversion from an incident QPSK to simultaneous two BPSK outputs without loss of the transmitting data. However, it was limited only for a single polarization signal. In this paper, we propose a novel method of wavelength preserved conversion for polarization division multiplexed QPSK signal with arbitrary polarization rotation angle to the x-axis on the x-y polarization plane which is orthogonal to the propagation axis. The method is based on the orthogonal dual-pump four-wave-mixing (FWM) in the highly nonlinear fiber with a nonlinear optical loop mirror configuration, which has advantages that it separately outputs the original signal and the phase conjugate signal and has independent FWM efficiency of the signal polarization angle. We show the system performances such as bit-error-rate and optical signal-to-noise ratio penalty evaluated by numerical simulations.
Journal Title
Journal of Lightwave Technology
ISSN
07338724
NCID
AA10453426
Volume
34
Issue
23
Start Page
5505
End Page
5515
Sort Key
5505
Published Date
2016-12-01
Remark
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
EDB ID
Published Source
Journal of Lightwave Technology (2016) Volume:34 Issue:23 p.5505-5515
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Author
departments
Science and Technology