The axis of the integrated superluminescent light source was tilted with re
spect to the output facet normal for lasing suppression. A new phenomenon (
lasing suppression) was observed in the tilted integrated device. Three new
schemes were proposed and demonstrated further to suppress the lasing by a
nalysing the reason for lasing in the tilted structure. The lasing was supp
ressed successfully at high pumping levels, and high superluminescent power
s (more than 300 mW) were obtained at a pulsed condition with the spectral
full width at half maximum of 25-30 nm.