High brightness, vertical cavity semiconductor lasers

Details High brightness, vertical cavity semiconductor lasers High brightness, vertical cavity semiconductor lasers

1994-03-16

1995-10-24

Bovernick, Rodney B.

Coherent light generators

Particular resonant cavity

372 11, 372 98, 372 18, 372 45, H01S 305, H01S 318

Patent

active

054616379

ABSTRACT:
An apparatus and method for producing laser radiation from a vertical cavity semiconductor laser are disclosed. A preferred embodiment includes a quantum-well region formed over a semiconductor substrate. A first reflective surface is formed over the quantum-well region, and a second reflective surface is formed over the substrate, opposite the first reflective surface, forming a laser cavity. The quantum-well region is optically pumped, producing laser oscillation. The absorbed pump power causes a thermal lensing effect within the semiconductor material, stabilizing the transverse spatial mode of the laser cavity. The invention has applications in optical communication and laser printing.

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