Abstract
By using a time-resolved spectrum analysis, we present for the first time an analysis of the contribution of thermal effect to wavelength tunability in multielectrode distributed-feedback (DFB) lasers. These components have been intensively developed for two years. They exhibit wide tunability (Δλ = 2 nm), narrow linewidth (≤1 MHz),1 and excellent FM characteristics2 and are widely used in coherent optical communication3 and fast wavelength switching.4
© 1991 Optical Society of America
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