Open AccessA saturable absorber Q-switched all-fiber ring laser
Author(s) -
Tzong Yow Tsai,
Yen Cheng Fang
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.001429
Subject(s) - saturable absorption , fiber laser , optics , materials science , q switching , pulse duration , resonator , laser , pulse (music) , fiber , optoelectronics , physics , detector , composite material
We propose a simple design of a saturable absorber Q-switched all-fiber ring laser. By locating a saturable absorber fiber in the intensity-enhanced section of a ring resonator, the laser is passively Q-switched. A set of location-dependent rate equations is established for Q-switching modeling. The design has been numerically and experimentally demonstrated using Er(3+)-doped fiber at the emission wavelength of 1550 nm. A single-mode Q-switched pulse with pulse energy of 0.37 microJ and pulse duration of 218 ns was achieved with 980-nm pump power near 7 mW.