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Low-Threshold, Single-Frequency Distributed-Feedback Waveguide Laser in Al2O3:Er3+ on Silicon

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Single-frequency distributed-feedback lasing with 165 µW output power at 1538.8 nm is realized in Al2O3:Er3+ waveguides fabricated on silicon wafers. Distributed feedback is provided by a surface relief Bragg grating fabricated with laser interference lithography.

© 2010 Optical Society of America

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