Multiwavelength fiber lasers based on multimode fiber Bragg gratings using offset launch technique

被引：24

作者：

Feng, Xinhuan ^{[1
]}

Tam, Hwa-Yaw

Chung, Weng-Hong

Wai, P. K. A.

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2006年 / 263卷 / 02期

关键词：

fiber laser; multi-mode fiber Bragg grating (MM-FBG); multiwavelength lasers; offset launch technique;

D O I：

10.1016/j.optcom.2006.02.006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The reflective characteristics of a multimode fiber Bragg grating (MM-FBG) and the changes of reflective spectra with mode excitation conditions in the multi-mode fiber were investigated. Two multiwavelength fiber laser configurations using offset launch technique to MM-FBG with hybrid gain mediums are proposed and demonstrated. Different multiwavelength outputs were obtained by variation of the spatial launching position of the single-mode fiber against the MM-FBG to achieve different mode group excitation. The first laser employs one MM-FBG in the ring cavity, achieving seven output wavelengths with a wavelength spacing of 0.76 nm. The second laser comprises two MM-FBGs connected in parallel, yielded 10 output wavelengths. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：295 / 299

页数：5

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