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Conferences > OFC > 1988 > ThK > ThK3

Single-longitudinal-mode operation of DF lasers in gain-switched operating conditions

K. KAMITE, K. KIHARA, H. ISHIKAWA, and H. IMAI

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Abstract

A single-longitudinal-mode semiconductor laser generating ultrashort optical pulses is attractive for use in future ultra-high-bit-rate optical fiber transmission systems. We have examined the effect of detuning on the side mode suppression in a distributed feedback (DFB) laser in ultrashort optical pulse generating conditions. We utilized the gain-switched technique1 and achieved 20-ps short pulses maintaining single-longitudinal-mode operation in lasers having detuning to the shorter wavelength side of the gain peak.

© 1988 Optical Society of America

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