ULTRA-HIGH SPEED OPTICAL WAVELENGTH CONVERSION DEVICE WHICH CAN SIMULTANEOUSLY EXTRACT ALL OPTICAL SYNCHRONIZING SIGNALS

摘要

PROBLEM TO BE SOLVED: To solve a problem that a whole system becomes complicated, cost becomes high and a phase synchronizing signal generator and a wavelength converter are developed as individual technology in a conventional case since the wavelength of an outer pump wave is to be variable for arbitrarily changing a conversion wavelength generated by the four light wave mixing of an existed single path system.;SOLUTION: An ultra-high speed optical wavelength conversion device where the wavelength is changed in a 1.55 μm area and outer pump light is not required by constituting an SOA-optical fiber laser and taking out output in an appropriate position is realized. Then, the phase synchronizing signal generator obtaining an optical pulse synchronized with an input optical pulse train is also realized. Consequently, they can be used as the ultra-high speed optical wavelength conversion device and the phase synchronizing signal generator of not less than a 10 Gbit/s class in the WDM optical communication system.;COPYRIGHT: (C)2002,JPO