Abstract
The general features and characteristics of
two different external-cavity mode-locked semiconductor lasers (MSLs) were
studied. Coherent optical frequency combs and short pulses from the MSLs were
used to develop a synchronized MSL system. Exploiting the synchronized MSLs
as a phase-locked transmitter and a local oscillator, various heterodyne and
homodyne coherent detection techniques were experimentally demonstrated. The
experimental results have shown that the phase-coherent optical frequency
combs and short pulses from the synchronized MSLs are very promising optical
sources for many future coherent photonic systems, especially for spectrally
phase-encoded optical code-division multiple access (SPE-OCDMA).
© 2008 IEEE
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