High-speed performance of partly gain-coupled 1.55-μmstrained-layer multiple-quantum-well DFB lasers |
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Authors: | Lu H. Li G.P. Makino T. |
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Affiliation: | Bell Northern Res., Ottawa, Ont.; |
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Abstract: | A partly-gain-coupled 1.55-μm distributed feedback (DFB) laser with a strained-layer multiple-quantum-well (MQW) active region with high relaxation oscillation frequency and maximum intrinsic bandwidth of 28 GHz is reported. An effective differential gain of 1.80×10-15 cm2 was achieved, which may be attributed to the strain effect in the MQW active region as well as the combination of the longitudinal gain/index coupling mechanism and fast lateral carrier injection from the cladding layers into the wells |
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