Open AccessActive waveguides written by femtosecond laser irradiation in an erbium-doped phospho-tellurite glass
Author(s) -
Toney Teddy Fernandez,
Giuseppe Della Valle,
Roberto Osellame,
Gin Jose,
N. Chiodo,
A. Jha,
P. Laporta
Publication year - 2008
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.16.015198
Subject(s) - erbium , materials science , femtosecond , optics , laser , irradiation , doping , optoelectronics , surface micromachining , fabrication , medicine , physics , alternative medicine , pathology , nuclear physics
We report on fs-laser micromachining of active waveguides in a new erbium-doped phospho-tellurite glass by means of a compact cavity-dumped Yb-based writing system. The spectroscopic properties of the glass were investigated, and the fs-laser written waveguides were characterized in terms of passive as well as active performance. In particular, internal gain was demonstrated in the whole C+L band of optical communications (1530- 1610 nm).