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Chromatic dispersion measurement using the relative power of two beating frequencies

✍ Scribed by M. T. Al-Qdah; H. A. Rashid; M. Khazani; K. Dimyati; B. M. Ali


Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
88 KB
Volume
46
Category
Article
ISSN
0895-2477

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✦ Synopsis


Abstract

A novel technique for measuring the accumulated chromatic dispersion (CD) in single‐mode fiber (SMF) is presented. The technique measures CD by simultaneously launching pump and probe optical signals at ω~1~ angular optical‐frequency separation, and two phase‐conjugated terms into the SMF. The relative power of the beat frequencies that appear after the photodetector at ω~1~ and at 2ω~1~ is used to determine the net dispersion. This technique was successfully demonstrated using a semiconductor optical amplifier (SOA) as a phase conjugator in order to achieve a 20‐dB relative power variation as a result of up to 1900‐ps/nm CD change. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 268–271, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20962


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