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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
- 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 bandwidth, Gain clamping, Raman amplifiers, Raman laser, Wavelength range, gain spectrum, long wavelength, practical application, short wavelength