High-speed properties of 1.55 μm InGaAs-InGaAsP MQW λ/4-shifted DFB lasers
摘要
A high-speed low-chirp 1.55 j.tm MQW-DFB laser is demonstrated through the optimization of an MQW active layer. A 3 dB bandwidth of 15 GHz and a record chirp width of 0.26 nm under 10 Gbit/s direct modulation were obtained. The dependence of the intrinsic dynamic properties, such as the relaxation oscillation frequency and damping K-factor, on the number of quantum wells is also investigated. The physical origin of the nonlinear damping is investigated by focusing on the laser structure and the wavelength dependence of the nonlinear gain coefficient e in semiconductor lasers.
引用本文（GB/T 7714）
K. Uomi, Emiko Aoki, Tomonobu Tsuchiya, 等. High-speed properties of 1.55 μm InGaAs-InGaAsP MQW λ/4-shifted DFB lasers[J]. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE, 1992.
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