Patent ID: 6901086

Claim:
A semiconductor laser device comprising: 1) a first semiconductor laser diode arranged to emit an output beam at a predetermined wavelength, said diode including: a) a top surface with a top electrode, b) a light wave generating substructure including a plurality of semiconductor layers disposed below said top surface, c) said light wave generating substructure having an active region within 1.5 -micrometer distance of said top electrode; 2) a second semiconductor laser diode arranged to emit an output beam at a predetermined wavelength, said diode including: a) a top surface with a top electrode, b) a light wave generating substructure including a plurality of semiconductor layers disposed below said top surface, c) said light wave generating substructure having an active region within 1.5 -micrometer distance of said top electrode; and 3) bonding and support means for disposing said first and second laser diodes such that their top surfaces are proximate and opposite each other, whereby said output beams of said first and second laser diodes are proximate and can be fed into a single-mode fiber directly or through a focus lens with tolerable power loss.