Wavelength conversion devices have been strongly demanded for the next generation optical systems such as photonic switching and optical computing. Especially, an optical-wavelength conversion laser is required as a key device for constructing optical wavelength-division switching network1). Recently, wavelength conversion with tunability of about 2.2 Å has been reported using the multi-electrode DFB laser2), however, new devices are expected to expand the tunable range.

© 1988 Optical Society of America

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