© The Institution of Electrical Engineers
We report the generation of high-speed optical pulses in gain-switched short-cavity InGaAsP injection lasers by high-frequency direct modulation. Short pulses (25 ps) with high on/off ratio were obtained at 11.2 GHz from a short-cavity double-channel planar buried-heterostructure (DCPBH) InGaAsP semiconductor laser biased at three times the threshold current. This is the first report of direct modulation above 10 GHz for InGaAsP lasers.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19840160
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