Patent ID: 6693941
Filing Date: 2004-02-17
Classification: B82Y,H01S

Abstract:
A semiconductor laser apparatus, comprising:i) a semiconductor laser device having an active layer made from a composition selected from the group consisting of InGaN-type and GaN-type compositions, said laser device having a stripe-shaped electric current injection window with a width of at least 5 &mgr;m, said laser device being employed as a pumping beam source to output a pumping beam having a wavelength of a 400 nm band and an output power ranging from 1 to 10 W; ii) a surface emission type semiconductor device with first and second end faces at opposite ends thereof, with the first end face thereof secured to a heat sink, and having at the second end face thereof a substrate of said surface emission type semiconductor device with a window etched therein, said surface emission type of semiconductor device being pumped by said semiconductor laser device; and iii) a wavelength converter constructed to receive the emission of said pumped surface emission type semiconductor device which converts a wavelength of light generated by pumping of said surface emission type semiconductor device to a laser beam that has a wavelength ranging from 300 nm to 350 nm and an output power ranging from several hundreds of milliwatts to several watts, which is radiated from said semiconductor laser apparatus.