NDLI: Allowable received OTDR light power for in-service measurement in lightwave SCM systems

Content Provider	IEEE Xplore Digital Library
Author	Yamamoto, F. Horiguchi, T.
Copyright Year	1983
Abstract	To measure in-service optical transmission lines in optical video distribution systems using subcarrier multiplexing (SCM) techniques, we clarify how measurement light from an optical time domain reflectometer (OTDR) affects the signal transmission performance when the light enters an optical network unit (ONU). We describe the additional noises induced when OTDR light is injected into the ONU and analyze the relationship between received OTDR light power and carrier-to-noise ratio. Moreover, we use the analysis to provide a technique for estimating the allowable received light power in lightwave SCM systems and show the dominant factors determining this allowable power. Finally, by using the estimation technique, we clarify the required rejection ratio for a filter designed to prevent OTDR light from entering ONU's in wavelength division multiplexing systems.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	286
Ending Page	294
Page Count	9
File Size	415620
File Format	PDF
ISSN	07338724
Volume Number	18
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power measurement Optical network units Transmission line measurements Optical filters Optical fiber networks Time measurement Power transmission lines Optical noise Signal to noise ratio Wavelength division multiplexing
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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