Tunable OTDR Based on Direct Modulation of Self-Injection-Locked RSOA for In-Service Monitoring of WDM-PON

We propose a tunable optical time-domain reflectometer (OTDR) for in-service monitoring of wavelength- division- multiplexing passive optical networks (WDM-PONs). The proposed method uses a reflective semiconductor optical amplifier, which is self-injection-locked by a tunable fiber Bragg grating. T...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 20; no. 15; pp. 1323 - 1325
Main Authors Thollabandi, M., Tae-Young Kim, Swook Hann, Chang-Soo Park
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bragg gratings
Fiber gratings
Laser noise
Modulation
Monitoring
Multiplexing
Optical fiber networks
Optical fibers
Optical modulation
Optical time-domain reflectometer (OTDR)
Passive optical networks
Photonics
reflective semiconductor optical amplifier (RSOA)
Reflectometers
Semiconductor optical amplifiers
Stimulated emission
Time domain analysis
Tunable circuits and devices
Tuning
wavelength- division- multiplexing passive optical network (WDM-PON)
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Summary:We propose a tunable optical time-domain reflectometer (OTDR) for in-service monitoring of wavelength- division- multiplexing passive optical networks (WDM-PONs). The proposed method uses a reflective semiconductor optical amplifier, which is self-injection-locked by a tunable fiber Bragg grating. The proposed tunable OTDR has a tuning range of 30 nm and a resolution of 50 m. The performance of the proposed scheme is experimentally evaluated to demonstrate the in-service monitoring of WDM-PON.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.926928