The fabrication and performance of high-speed and high-power 1.3-μm InGaAsP buried crescent lasers with semi-insulating (SI) current blocking layers are reported. These semi-insulation buried crescent (SIBC) lasers have a 3-dB modulation bandwidth of 11 GHz and cw output power of 42 mW/ facet. This is the highest modulation bandwidth and output power yet reported for an InGaAsP laser with a semi-insulating blocking layer.

© 1988 Optical Society of America

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