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The linewidth of an improved 40 GHz modelocked laser diode is investigated. The influence of its operation parameters on linewidth and the resulting performance in a 40Gband-DQPSK system is evaluated.
Comprehensive experimental studies on the effects of wavelength tuning on pulse, noise, and locking characteristics of monolithic 1.5 /spl mu/m mode-locked SIPBH DBR lasers are presented in view of simple device operation, commercial application and fabrication.
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