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

被引：2
|
作者：
Zhang, H [1 ]
Yu, L [1 ]
Liu, YG [1 ]
Wang, C [1 ]
Liu, LH [1 ]
Xiong, LY [1 ]
Yuan, SZ [1 ]
Dong, XY [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
PASSIVE COMPONENTS AND FIBER-BASED DEVICES, PTS 1 AND 2 | 2005年 / 5623卷
关键词：
erbium-doped fiber amplifier (EDFA); L-band; noise figure (NF); high birefringence fiber (HiBi fiber); fiber loop mirror;
D O I：
10.1117/12.569517
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 2.06similar to5.33dB for the ten sampled signal wavelength (1580.84nmsimilar to1588.48nm).
引用
收藏
页码：799 / 802
页数：4
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