Open AccessAll-fiber tunable laser based on an acousto-optic tunable filter and a tapered fiber
Author(s) -
Ligang Huang,
Xiaojing Song,
Pengfa Chang,
Weihua Peng,
Wending Zhang,
Feng Gao,
Bo Fang,
Guoquan Zhang,
Jingyi Xu
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.007449
Subject(s) - optics , materials science , fiber laser , laser , tunable laser , fiber bragg grating , distributed feedback laser , bandwidth (computing) , optical fiber , optoelectronics , telecommunications , computer science , physics
An all-fiber tunable laser was fabricated based on an acousto-optic tunable filter and a tapered fiber. The structure was of a high signal-to-noise ratio, therefore, no extra gain flattening was needed in the laser. In the experiment, the wavelength of the laser could be tuned from 1532.1 nm to 1570.4 nm with a 3-dB bandwidth of about 0.2 nm. Given enough nonlinearity in the laser cavity, it could also generate a sliding-frequency pulse train. The laser gains advantages of fast tuning and agility in pulse generation, and its simple structure is low cost for practical applications.