Abstract

We report on the laser performance of a Nd:phosphate glass (Nd:IOG-1) channel waveguide laser fabricated by electric field assisted Ag⁺ diffusion. Lasing was achieved in two different size channels, 29×9 µm² and 50×9 µm², on a sample of length 8 mm. Slope efficiencies of ~15% with respect to incident pump power were measured. Losses in the 29 um wide channel were measured to be in the range 0.2−1.1 dB/cm and in the 50 µm channel, 0.2−0.4 dB/cm. The laser spectrum, centered about the emission peak of 1053 nm, was multimode and randomly polarized.

© 1999 Optical Society of America