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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 16 — Aug. 8, 2005
  • pp: 6023–6032

Composite broad-band fiber Raman amplifiers using incoherent pumping

Bing Han, Xiupu Zhang, Guodong Zhang, Zhenguo Lu, and Guangxue Yang  »View Author Affiliations

Optics Express, Vol. 13, Issue 16, pp. 6023-6032 (2005)

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This report presents an investigation of composite fiber Raman amplifiers (i.e., a distributed fiber Raman amplifier followed by a discrete fiber Raman amplifier) with incoherent pumping, compared to conventional coherent pumping. It is shown that a flatter gain, noise figure and optical signal-to-noise ratio (OSNR) over 100-nm bandwidth can be achieved simultaneously by using two counter-incoherent pumps, compared to using six counter-coherent pumps. Moreover, it is found that a further improvement in gain, noise figure and OSNR flatness can be obtained in composite fiber Raman amplifiers with bi-directional incoherent pumping. The flatness of both gain and OSNR with a ripple of 1 dB is predicted by using one co- incoherent pump and one counter- incoherent pump.

© 2005 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2330) Fiber optics and optical communications : Fiber optics communications
(190.5650) Nonlinear optics : Raman effect

ToC Category:
Research Papers

Original Manuscript: June 17, 2005
Revised Manuscript: July 24, 2005
Published: August 8, 2005

Bing Han, Xiupu Zhang, Guodong Zhang, Zhenguo Lu, and Guangxue Yang, "Composite broad-band fiber Raman amplifiers using incoherent pumping," Opt. Express 13, 6023-6032 (2005)

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