Coherent light generators – Particular beam control device – Nonlinear device
Reexamination Certificate
2011-02-01
2011-02-01
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Nonlinear device
C372S105000, C372S072000
Reexamination Certificate
active
07881349
ABSTRACT:
An optically pumped semiconductor-laser (OPS-laser) resonator includes an arrangement for delivering optical pump radiation on an OPS-chip to cause fundamental radiation to circulate in the resonator. The resonator includes second and third-harmonic generating crystals and is arranged deliver third-harmonic radiation. The resonator also includes a stop positioned and configured to stabilize the laser output. The pump radiation arrangement delivers the pump radiation at an angle to the resonator axis and includes wedged GRIN lens arranged such that the pump radiation forms a circular spot on the OPS chip. The third harmonic generating crystal acts as a polarizer for the fundamental radiation and angularly separates fundamental and third harmonic beams.
REFERENCES:
patent: 6097742 (2000-08-01), Caprara et al.
patent: 2002/0196819 (2002-12-01), Spinelli et al.
patent: 2005/0207457 (2005-09-01), Agnesi et al.
Jan. 2007 Brochure, entitled “Gradient Index (GRIN) Lenses,” published by GRIN TECH, 2 pages in length.
Caprara Andrea
Chilla Juan L.
Ihli Christopher
Shu Qi-Ze
Coherent Inc.
Golub-Miller Marcia A.
Harvey Minsun
Morrison & Foerster / LLP
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