Single- and dual-wavelength switchable erbium-doped fiber ring laser based on intracavity polarization selective tilted fiber gratings

被引：28

作者：

Mou, Chengbo ^{[1
]}

Saffari, Pouneh ^{[1
]}

Fu, Hongyan ^{[2
]}

Zhou, Kaiming ^{[1
]}

Zhang, Lin ^{[1
]}

Bennion, Ian ^{[1
]}

机构：

[1] Aston Univ, Sch Engn & Appl Sci, Photon Res Grp, Birmingham B4 7ET, W Midlands, England

[2] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China

来源：

APPLIED OPTICS | 2009年 / 48卷 / 18期

关键词：

BRAGG GRATINGS; TEMPERATURE;

D O I：

10.1364/AO.48.003455

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a single- and dual-wavelength switchable erbium-doped fiber laser (EDFL) by utilizing intracavity polarization selective filters based on tilted fiber gratings (TFGs). In the cavity, one 45 degrees TFG functions as an in-fiber polarizer and the other 77 degrees TFG is used as a fiber polarization dependent loss (PDL) filter. The combined polarization effect from these two TFGs enables the laser to switch between the single- and the dual-wavelength operation with a single-polarization state at room temperature. The laser output at each wavelength shows an optical signal-to-noise ratio (OSNR) of >600, a side mode suppression ratio (SMSR) of >500, and a polarization extinction ratio of similar to 35 dB. The proposed EDFL can give stable output under laboratory conditions. (C) 2009 Optical Society of America

引用

页码：3455 / 3459

页数：5

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