A novel method to improve noise figure for double-pass L-band EDFA

Hao Zhang; Ling Yu; Yange Liu; Chao Wang; Lihui Liu; Lingyun Xiong; Shuzhong Yuan; Xiaoyi Dong

doi:10.1117/12.569517

10 January 2005 A novel method to improve noise figure for double-pass L-band EDFA

Hao Zhang, Ling Yu, Yange Liu, Chao Wang, Lihui Liu, Lingyun Xiong, Shuzhong Yuan, Xiaoyi Dong

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.569517
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

In this paper, we present a noise figure improved double-pass L-band EDFA based on HiBi fiber loop mirror as the ASE suppressor. By utilizing a HiBi fiber loop mirror as the wavelength-dependent reflector, the ASE light has been weakened to a large extend, which increases the inversion ion population at the input end of erbium-doped fiber. Therefore, the noise figure of this double-pass EDFA has been much improved. Compared with that of the conventional double-pass structure based on 3dB fiber loop mirror, the NF of our novel configuration is reduced by 2.06~5.33dB for the ten sampled signal wavelength (1580.84nm~1588.48nm).

Citation Download Citation

Hao Zhang, Ling Yu, Yange Liu, Chao Wang, Lihui Liu, Lingyun Xiong, Shuzhong Yuan, and Xiaoyi Dong "A novel method to improve noise figure for double-pass L-band EDFA", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.569517

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