Open AccessTriple-wavelength switchable Erbium doped fiber laser with cascaded asymmetric exposure long-period fiber gratings
Author(s) -
Ming Yan,
Shuai Luo,
Li Zhan,
Zhiming Zhang,
Yuxing Xia
Publication year - 2007
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.15.003685
Subject(s) - materials science , optics , fiber bragg grating , fiber laser , dispersion shifted fiber , polarization maintaining optical fiber , long period fiber grating , optoelectronics , laser , wavelength , fiber optic sensor , optical fiber , physics
The cascaded asymmetric exposure long-period fiber gratings are fabricated by CO(2) laser, which provide multi-wavelength filters with anisotropic transmission spectrum under different states of polarization. Inserting this device in the ring cavity of an erbium-doped fiber laser, a triple-wavelength switchable lasing laser with equal spacing of 2.6 nm has been obtained. Owing to the polarization dependent loss of the new cascaded long-period fiber grating, the wavelength switching of random combination of C(1) (3), C (2) (3), and C(3) (3) is demonstrated through the polarization controlling. We derive the wavelength switch to the polarization characteristic of cascaded asymmetric exposure long-period fiber gratings.