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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 4 — Feb. 15, 2008
  • pp: 327–329

Gain-clamped Raman fiber oscillator

H. S. Seo, J. T. Ahn, B. J. Park, and W. J. Chung  »View Author Affiliations


Optics Letters, Vol. 33, Issue 4, pp. 327-329 (2008)
http://dx.doi.org/10.1364/OL.33.000327


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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

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 29, 2007
Revised Manuscript: December 3, 2007
Manuscript Accepted: December 12, 2007
Published: February 8, 2008

Citation
H. S. Seo, J. T. Ahn, B. J. Park, and W. J. Chung, "Gain-clamped Raman fiber oscillator," Opt. Lett. 33, 327-329 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-4-327


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References

  1. K. Inoue, IEEE Photon. Technol. Lett. 11, 1108 (1999). [CrossRef]
  2. H. S. Chung, H. H. Lee, J. C. Lee, M. J. Chu, and J. H. Lee, Electron. Lett. 38, 215 (2002). [CrossRef]
  3. S. S.-H. Yam, M. E. Marhic, Y. Akasaka, K. Shimizu, N. Kikuchi, and L. G. Kazovsky, IEEE Photon. Technol. Lett. 16, 1456 (2004). [CrossRef]
  4. H. S. Seo, J. T. Ahn, B. J. Park, and W. J. Chung, Electron. Lett. 43, 801 (2007). [CrossRef]
  5. J. T. Ahn, H. S. Seo, B. J. Park, and K. H. Kim, IEEE Photon. Technol. Lett. 19, 1898 (2007). [CrossRef]

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