Abstract

Modelocked semiconductor lasers have been studied quite extensively by many research groups motivated by their compactness and capability of generating subpicosecond optical pulses.¹ Those works are, however, mostly done in near infrared wavelength range owing to the lack of available semiconductor optical amplifiers (SOA) in visible or ultraviolet region. Recent developments of GaN based semiconductor lasers have made it possible that semiconductor lasers can cover entire wavelength range from UV to IR.²

© 2001 Optical Society of America