Open Access1.5 μm single longitudinal mode waveguide laser fabricated by femtosecond laser writing
Author(s) -
Giuseppe Della Valle,
S. Taccheo,
Roberto Osellame,
A. Festa,
Giulio Cerullo,
P. Laporta
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.15.003190
Subject(s) - femtosecond , optics , materials science , laser , longitudinal mode , waveguide , optoelectronics , laser power scaling , erbium , physics
A compact and efficient single longitudinal mode laser based on a femtosecond laser written waveguide is demonstrated. A maximum output power exceeding 50 mW was measured in single longitudinal and transverse mode operation, with 21% slope efficiency. The active waveguide was fabricated on erbium-ytterbium-doped phosphate glass by direct writing with femtosecond laser pulses from a diode-pumped cavity-dumped oscillator.