Open AccessC-band wavelength-swept single-longitudinalmode erbium-doped fiber ring laser
Author(s) -
Kang Zhang,
Jin U. Kang
Publication year - 2008
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.16.014173
Subject(s) - optics , materials science , fiber laser , laser linewidth , ring laser , dispersion shifted fiber , laser , wavelength , polarization maintaining optical fiber , erbium , fiber bragg grating , optical fiber , optoelectronics , fiber optic sensor , physics
A wavelength-swept single-longitudinal-mode erbium-doped fiber ring laser capable of operating at sweeping frequency in the order of a few kHz is designed and demonstrated by using a fiber Fabry-Perot tunable filter and a Sagnac loop incorporated with a 3.5-meter unpumped erbium-doped fiber. The laser operates in continuous-wave (CW) mode and can sweep approximately 45 nm over the entire C-band (1520nm-1570nm) window with linewidth less than 0.7 kHz. The optimum wavelength sweeping frequency in order to achieve the best output power stability was found to be approximately20Hz with sweeping-induced power fluctuation of only 0.1%.