Abstract
Semiconductor laser transmitters with wide, fine and fast tunability are essential components to realize future wavelength division multiplexing (WDM) networks cost-effectively. A Grating assisted codirectional Coupler with rear Sampled grating Reflector (GCSR) laser is one of the most promising candidates for such transmitters, to provide the required tunability with low driving currents [1,2].
© 2000 Optical Society of America
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