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Proceedings Paper

Structural modifications in Er-Yb doped phosphate glass induced by femtosecond laser waveguide writing
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Paper Abstract

We have systematically studied femtosecond-laser fabrication of optical waveguides in an Er-Yb doped phosphate glass. Waveguides were written using the IMRA America FCPA μJewel D-400 femtosecond fiber laser system with pulse repetition rates ranging from 250 kHz to 2.2 MHz. At every pulse repetition rate a series of waveguides was written while varying scan speeds from 50 μm/s to 100 mm/s and pulse energies from 80 nJ to 320 nJ. The optical quality of the waveguides was evaluated by measuring the waveguide mode profile as well as the optical loss. Laser-induced defects and structural changes in the glass were characterized using confocal fluorescence and Raman microscopy.

Paper Details

Date Published: 15 February 2008
PDF: 11 pages
Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 688111 (15 February 2008); doi: 10.1117/12.763982
Show Author Affiliations
L. B. Fletcher, Univ. of California/Davis (United States)
J. J. Witcher, Univ. of California/Davis (United States)
W. J. Reichman, Univ. of California/Davis (United States)
J. Bovatsek, IMRA America, Inc. (United States)
A. Arai, IMRA America, Inc. (United States)
D. M. Krol, Univ. of California/Davis (United States)

Published in SPIE Proceedings Vol. 6881:
Commercial and Biomedical Applications of Ultrafast Lasers VIII
Joseph Neev; Stefan Nolte; Alexander Heisterkamp; Christopher B. Schaffer, Editor(s)

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