Abstract

Single-frequency distributed-feedback lasing with 165 ?W output power at 1538.8 nm is realized in Al<sup>2</sup>O<sup>3</sup>:Er<sup>3+</sup>waveguides fabricated on silicon wafers. Distributed feedback is provided by a surface relief Bragg grating fabricated with laser interference lithography.

© 2010 The Optical Society

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