10 January 2005 A novel method to improve noise figure for double-pass L-band EDFA
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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).
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Hao Zhang, Hao Zhang, Ling Yu, Ling Yu, Yange Liu, Yange Liu, Chao Wang, Chao Wang, Lihui Liu, Lihui Liu, Lingyun Xiong, Lingyun Xiong, Shuzhong Yuan, Shuzhong Yuan, Xiaoyi Dong, 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); doi: 10.1117/12.569517; https://doi.org/10.1117/12.569517
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