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Conferences > OFC > 1991 > WM > WM3

Optimum design of currugation-pitch-modulated multiple-quantum-well distributed-feedback lasers for narrow spectral linewidth

M. Okai, T. Tsuchiya, K. Uomi, N. Chinone, and T. Harada

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Abstract

Narrowing the spectral linewidth of semiconductor lasers is a key technology for coherent optical communication systems Recently, we ported 170-kHz spectral linewidth1 by introducing a corrugation-pitch-modulated (CPM) grating into 1.2-mm-long multiple-quantum-well distributed-feedback (MQW-DFB) lasers The CPM grating is effective in reducing the spatial hole-burning effect by flattening the light-intensity profile along the laser cavity.

© 1991 Optical Society of America

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