Open AccessAcousto-optic wavelength-tunable erbium-doped fiber ring laser
Author(s) -
Yang Wei,
Ying Liu,
Xiao Li-Feng,
Yang Zhao-Xiang,
Pan Jian-Xuan
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.1030
Subject(s) - materials science , lasing threshold , optics , ring laser , polarization controller , wavelength , fiber laser , laser , slope efficiency , optoelectronics , erbium doped fiber amplifier , polarization (electrochemistry) , erbium , doping , optical amplifier , physics , chemistry
A erbium-doped fiber ring laser, which utilizes a single-stage polarization-independent acousto-optic tunable filter by use of quasi-collinear coupling as the tuning component, is proposed and a continuously tunable lasing wavelength is realized. The filtering principle of the polarization-independent quasi-collinear filter is introduced briefly, and then the compensation of frequency-shift is analyzed. The experimental results are that the output power of the laser pumped at 13 mW is measured to be 322 μW at a lasing wavelength of 1550 nm, the threshold pump power is 7.65 mW, and the slope efficiency is 6.02%; the tuning range of 38 nm, starting from 1524.7 nm ending at 1562.4 nm, is observed.