Open AccessBroadband Tm-doped superfluorescent fiber source with 11 W single-ended output power
Author(s) -
Deyuan Shen,
L. Pearson,
P. Wang,
J.K. Sahu,
W.A. Clarkson
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.16.011021
Subject(s) - optics , materials science , broadband , amplified spontaneous emission , slope efficiency , wavelength , full width at half maximum , cladding (metalworking) , fiber bragg grating , optoelectronics , fiber laser , dispersion shifted fiber , optical fiber , laser , fiber optic sensor , physics , metallurgy
High-power operation of a cladding-pumped Tm-doped broadband superfluorescent fiber source in the two-micron wavelength regime is described. Predominately single-ended operation was achieved using a simple all-fiber geometry without the use of a high reflectivity mirror or fiber Bragg gratings. The source produced >11 W of single-ended amplified spontaneous emission output spanning the wavelength range from approximately 1930 nm to 1988 nm for a launched diode pump power of approximately 40 W at approximately 790 nm, corresponding to a slope efficiency of 38% with respect to launched pump power. The wavelength spectrum of the superfluorescent source spanned the range from approximately 1650 to 2100 nm with a bandwidth (FWHM) of > 100 nm for output power levels of < 20 mW.