NDLI: Direct detection of OC-192 DPSK signal using polarization-controlled differential-phase-to-intensity conversion (DPIC)

Content Provider	IEEE Xplore Digital Library
Author	Awaji, Y. Kuri, T. Chujo, W.
Copyright Year	1989
Abstract	The differential-phase-to-intensity conversion (DPIC) can be used to detect an optical phase-shift of laser light. The system is based on injection locking of a semiconductor laser. We have now found the waveform of a DPIC signal can be adjusted by controlling and selecting the polarization of the lightwaves before and after the slave laser. We experimentally investigated the phenomenon, and concluded that it originated in TM-mode excitation and interference between the TE and TM modes within and after the slave laser. Such adjustment of the waveform according to the condition of polarization is useful because it can achieve direct demodulation of an optical DPSK signal without using an electrical circuit. The adoption of the DPSK signal format enables a higher bit rate than the original DPIC scheme. We demonstrated direct detection of an OC-192 (9.95328 Gb/s) DPSK signal by using polarization-controlled DPIC.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1007
Ending Page	1009
Page Count	3
File Size	224977
File Format	PDF
ISSN	10411135
Volume Number	14
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Differential quadrature phase shift keying Optical polarization Semiconductor lasers Laser mode locking Optical detectors Phase detection Injection-locked oscillators Optical control Lighting control Laser excitation
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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