Erbium-doped Fiber Laser with Distributed Feedback from a Fiber Grating Array

Erbium-doped Fiber Laser with Distributed Feedback from a Fiber Grating Array

An erbium-doped fiber laser with low coherence, low threshold, high efficiency and narrow linewidth is demonstrated for the first time based on distributed feedback from a fiber Bragg grating (FBG) array. The FBG array contains tens of FBGs with identical Bragg wavelength but very weak reflectivity...

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Bibliographic Details
Main Authors: Dong, Xinyong, Yuan, Junwei, Zhu, Lei, Shum, Perry Ping, Su, Haibin
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2016
Subjects:
Fiber Bragg gratings
Bragg wavelength
Online Access:https://hdl.handle.net/10356/93202
http://hdl.handle.net/10220/39607
http://piers.org/piersproceedings/piers2015PragueProc.php?start=100
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Institution: Nanyang Technological University
Language: English
Description
Summary:An erbium-doped fiber laser with low coherence, low threshold, high efficiency and narrow linewidth is demonstrated for the first time based on distributed feedback from a fiber Bragg grating (FBG) array. The FBG array contains tens of FBGs with identical Bragg wavelength but very weak reflectivity of ∼ 5‰, inscribed along a normal single-mode fiber with random separations. Low pump threshold power of 3.0 mW and high slope efficiency of 24% are achieved, which are comparable with that of normal erbium-doped fiber lasers but much better than that of conventional random fiber lasers based on distributed Rayleigh scattering.

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