Active waveguides written by femtosecond laser irradiation in an erbium-doped phospho-tellurite glass

• Published in: Optics express Vol. 16; no. 19; pp. 15198 - 15205
• Main Authors: Fernandez, T Toney, Della Valle, G, Osellame, R, Jose, G, Chiodo, N, Jha, A, Laporta, P
• Format: Journal Article
• Language: English
• Published: United States 15-09-2008
• Subjects: Amplifiers, Electronic; Computer Simulation; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Erbium - chemistry; Erbium - radiation effects; Glass - chemistry; Glass - radiation effects; Lasers; Models, Theoretical; Optics and Photonics - instrumentation; Phosphorus - chemistry; Phosphorus - radiation effects; Tellurium - chemistry
• ISSN: 1094-4087; 1094-4087
• DOI: 10.1364/OE.16.015198

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).