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Autor:
Frank Bello, Gaurav Jain, Michael J. Wallace, Robert McKenna, Kevin Brazel, Qiaoyin Lu, John F. Donegan, Weihua Guo
Publikováno v:
Journal of Lightwave Technology. 36:5121-5129
Semiconductor lasers that use high-order surface gratings formed with etched slots have simple fabrication. Such gratings however increase loss and have a small free-spectral range that can increase threshold, lower slope efficiency, and limit SMSR.