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Conferences > OFC > 1991 > WB > WB4

High-speed, low-wavelength chirping characteristics of 1.5-µm strained-layer quantum-well self-aligned constricted mesa DFB Lasers

Y. Hirayama, N. Suzuki, M. Onomura, M. Morinaga, M. Funemizu, M. Kushibe, and M. Nakamura

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Abstract

High-speed, low-wavelength chirping lasers are essential for long distance 10 Gb/s intensity modulation direct detection optical communication systems. Although superior results of quantum-well (QW) lasers relative to those of bulk lasers have been shown recently,1 much more improved laser performance is desired for practical application of these lasers. It is reported that a strained-layer QW structure theoretically causes a valence band structure change which results in an increase of differential gain and a decrease in the alpha parameter.2 We first confirm large improvement in the high speed characteristics of strained-layer QW DFB lasers.

© 1991 Optical Society of America

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