Abstract
Optical switching based on wavelength division multiplexing (WDM) is useful for increasing the transport and processing capabilities of optical networks.1,2 A broadly tunable semiconductor laser is a key component for such systems. Recently, we developed wavelength tunable distributed Bragg reflector (DBR) lasers with super structure grating (SSG).3 We obtained a broad wavelength tuning range of more than 100 nm,4 which is almost ten times larger than that found in conventional DI3R lasers.
© 1993 Optical Society of America
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