Efficient multi-wavelength fiber laser operating in L-band

被引：24
作者：
Zhao, CL [1 ]
Yang, SQ
Meng, HY
Li, ZH
Yuan, SH
Kai, GY
Dong, XY
机构：
[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
[2] Nankai Univ, Res Ctr Photon Technol, Tianjin 300071, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2002年 / 204卷 / 1-6期
关键词：
multi-wavelength fiber laser; L-band; ASE pump; multimode fiber filter; spatial mode-beating filter;
D O I：
10.1016/S0030-4018(02)01244-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, an efficient L-band multi-wavelength erbium-doped fiber ring laser is demonstrated by recycling backward 1550 nm band amplified spontaneous emission as secondary pump source for the unpumped EDF section. The lasing threshold is reduced and the slope efficiency is improved. A piece of multimode fiber is used as a spatial mode-beating filter. By adjusting the polarization state of the light, the number of lasing wavelength and their spaces are controlled. In dual-wavelength laser, the power of each channel is 4 mW with 40 dB side-mode-suppression-ratio. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：323 / 326
页数：4
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