Patent ID: 6404797
Filing Date: 2002-06-11
Classification: H01S,H04N

Abstract:
A laser device, comprising:first and second reflectors respectively positioned at opposite ends of a resonant cavity for defining a fundamental cavity mode; a semiconductor substrate positioned in the cavity; a gain medium positioned on a first surface of said semiconductor substrate, said first reflector being positioned on said gain medium; a first contact positioned on said first reflector, said first contact being adapted to define a first volume within said gain medium; and a second contact positioned on a second surface, opposite to the first, of said semiconductor substrate, said second reflector being positioned directly adjacent to said second contact, said first and second contacts being adapted to transmit energy for energizing the first volume of said gain medium causing optical energy emission in the first volume, the optical energy emission in the first volume transmitting in both longitudinal and transverse directions to the fundamental cavity mode wherein the optical energy emission in the transverse direction is adapted to optically pump a second volume of said gain medium about the first volume and the optical energy emissions in both first and second volumes are coupled into the fundamental cavity mode by said first and second reflectors.