Broadband Er:Tm-codoped silica fiber amplifier for DWDM application

Shufu Dong; Shanghong Zhao; Lei Shi; Shengbao Zhan; Guangwei Zheng; Yujiang Li

doi:10.1117/12.577741

10 January 2005 Broadband Er:Tm-codoped silica fiber amplifier for DWDM application

Shufu Dong, Shanghong Zhao, Lei Shi, Shengbao Zhan, Guangwei Zheng, Yujiang Li

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.577741
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

In this paper, the operation principle of the broadband Er-Tm co-doped silica fiber amplifier when pumped at 980nm is presented. Numerical analysis of this broadband Er-Tm co-doped silica fiber amplifier has been performed based on the rate and propagation equations. The signal amplification gain as functions of the fiber length, the input pump power, the erbium-thulium concentration, as well as the pumping ways is described. The results show that the erbium- thulium co-doped silica fiber amplifier could provide more than 80 nm effective gain bandwidth, which is twice larger than the conventional singly erbium-doped fiber amplifier. The minimum gain value exceeds 9 dB when the launched pump power is higher than 400 mW. These results could be useful for the optimized design of DWDM amplifier in the near future.

Citation Download Citation

Shufu Dong, Shanghong Zhao, Lei Shi, Shengbao Zhan, Guangwei Zheng, and Yujiang Li "Broadband Er:Tm-codoped silica fiber amplifier for DWDM application", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.577741

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