Composite broad-band fiber Raman amplifiers by using incoherent pumping

Bing Han; Xiupu Zhang; Guodong Zhang

doi:10.1117/12.628260

13 October 2005 Composite broad-band fiber Raman amplifiers by using incoherent pumping

Bing Han, Xiupu Zhang, Guodong Zhang

Proceedings Volume 5970, Photonic Applications in Devices and Communication Systems; 597026 (2005) https://doi.org/10.1117/12.628260
Event: Photonics North, 2005, Toronto, Canada

Abstract

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

Citation Download Citation

Bing Han, Xiupu Zhang, and Guodong Zhang "Composite broad-band fiber Raman amplifiers by using incoherent pumping", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 597026 (13 October 2005); https://doi.org/10.1117/12.628260

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