Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19011
Title: Multiwavelength fiber lasers based on multimode fiber Bragg gratings using offset launch technique
Authors: Feng, X
Tam, HY 
Chung, WH
Wai, PKA 
Keywords: Fiber laser
Multi-mode fiber Bragg grating (MM-FBG)
Multiwavelength lasers
Offset launch technique
Issue Date: 2006
Publisher: North-Holland
Source: Optics communications, 2006, v. 263, no. 2, p. 295-299 How to cite?
Journal: Optics communications 
Abstract: 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.
URI: http://hdl.handle.net/10397/19011
ISSN: 0030-4018
EISSN: 1873-0310
DOI: 10.1016/j.optcom.2006.02.006
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