Abstract

A Y-branch channel waveguide laser operating near 1057 nm was fabricated by electric-field-assisted ion exchange in Nd-doped silicate glass. The overall length was 24 mm. Optical pumping was performed with a cw Ti:sapphire laser. Mirrors were bonded to the polished waveguide facets. The slope efficiency was 5.1% when a 4%-transmitting output coupler was used. Threshold was reached at 26-mW absorbed pump power. The device exhibited a single-pass small-signal gain of 0.034 dB/mW when operated as an amplifier. The 3-dB splitting loss of the Y-branch structure was overcome when the absorbed pump power was approximately 85 mW.

© 1991 Optical Society of America

Linewidth narrowing in an imbalanced Y-branch waveguide laser

N. A. Sanford, J. A. Aust, K. J. Malone, and D. R. Larson
Opt. Lett. 18(4) 281-283 (1993)

Extended-cavity operation of rare-earth-doped glass waveguide lasers

N. A. Sanford, K. J. Malone, and D. R. Larson
Opt. Lett. 16(14) 1095-1097 (1991)

Normalized parameters for Y-branch optical waveguides

Jaume Recolons, Lluís Torner, and Fernando Canal
Opt. Lett. 16(9) 636-638 (1991)

Low-loss coherent-coupling Y branches

F. S. Chu and Pao-Lo Liu
Opt. Lett. 16(5) 309-311 (1991)

Integrated-optic laser fabricated by field-assisted ion exchange in neodymium-doped soda-lime-silicate glass

N. A. Sanford, K. J. Malone, and D. R. Larson
Opt. Lett. 15(7) 366-368 (1990)