Abstract
A coupled optoelectronic oscillator (COEO) based on a laser with a high
finesse intracavity etalon is presented. Unlike a conventional COEO, the incorporation
of the etalon produces a 10.24-GHz spaced optical frequency comb by selecting
a single optical supermode. The same etalon serves as a reference for active
stabilization of the optical frequencies and the pulse repetition rate via
the Pound-Drever-Hall stabilization method. This results in 160 to 190 comb
lines with sub-1-MHz drift and sub-10-kHz linewidth, as well as subpicosecond
pulses and 350-Hz maximum deviation of the pulse repetition rate over 10 min.
The completely self-contained source allows the COEO utility to extend to
a host of new coherent communication and signal processing applications.
© 2008 IEEE
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