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Journal Article Gain-clamped Raman Fiber Oscillator
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Authors
H. S. Seo, J. T. Ahn, B. J. Park, W. J. Chung
Issue Date
2008-02
Citation
Optics Letters, v.33, no.4, pp.327-329
ISSN
0146-9592
Publisher
Optical Society of America(OSA)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1364/OL.33.000327
Project Code
07ZB1200, Future Technology Researches in the Fields of Informations and Telecommunications, Taehyoung Zyung
Abstract
Gain band expansion of a Raman amplifier based on a Raman fiber oscillator (RFO) was tested with two Raman lasers, which yielded a broad gain spectrum of about 40 nm. However, they also introduced gain-clamping behavior in the short-wavelength range and abnormal excessive gain in long-wavelength channels, which were undesirable for practical application. The proper mechanism of the behavior was analyzed and experimentally demonstrated to apply to a gain-clamped (GC) amplifier based on a RFO. Appropriate configuration of the GC-RFO for wide gain bandwidth was proposed and characterized. © 2008 Optical Society of America.
KSP Keywords
40 nm, Band expansion, Gain clamping, Gain spectrum, Raman amplifiers, Raman laser, gain bandwidth, long wavelength, practical application, short wavelength, wavelength range