We have developed a scheme to generate multiwavelength short pulses by injection-locking of a Fabry-Pe/spl acute/rot laser diode with spectrally broadened and comb-filtered distributed feedback (DFB) laser pulses. Tunable five-wavelength 10-GHz pulses have been successfully generated from our scheme. The number of output wavelengths is adjustable by controlling the spectral width of the DFB injection input through the amount of self-phase modulation in a dispersion-shifted fiber. The generation scheme also benefits from its tolerance to wavelength drift of the injection source. A 10-GHz eye measurement has been performed and an output extinction ratio of 15.6 dB is obtained.
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Fok et al. (2005) studied this question.
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