Jason Burdell Henrie

US Patent:

6417955, Jul 9, 2002

Filed:

Dec 14, 1999

Appl. No.:

09/461517

Inventors:

James D. Kafka - Mountain View CA
James B. Clark - Campbell CA
Jason D. Henrie - Los Altos CA

Assignee:

Spectra Physics Lasers, Inc. - Mountian View CA

International Classification:

H01S 3098

US Classification:

359333

Abstract:

An amplifier uses a two-dimensional array of cw diodes to produce a pump beam. A coupler is positioned to receive the pump beam. The coupler reduces a cross-sectional dimension of the pump beam and creates a modified pump beam. A vanadate gain medium is positioned adjacent to the coupler. The vanadate gain medium absorbs at least a portion of the modified pump beam and is positioned to receive an input beam from an input beam source and produce an amplified output beam.

US Patent:

6665328, Dec 16, 2003

Filed:

Sep 22, 1999

Appl. No.:

09/401146

Inventors:

Jason D. Henrie - Los Altos CA

Assignee:

Spectra Physics, Inc. - Mountain View CA

International Classification:

H01S 309

US Classification:

372 69, 372 92, 372 99, 372 96, 372 98, 372103

Abstract:

An optically pumped laser has a gain medium positioned inside of an optical resonator cavity and disposed about a resonator optical axis. An optical pumping source is positioned outside of the optical resonator cavity. A reflective coupler with a coupler body, and an interior volume passing therethrough is positioned proximal to the optical pumping source. Light from the pumping source passes into an entrance aperture of the reflective coupler to an exit aperture of the reflective coupler positioned distal to the optical pumping source. The interior volume of the reflective coupler is bounded by a reflective surface, an entrance aperture and the exit aperture, and is substantially transparent to radiation from the optical pumping source. The reflective surface has a high reflectivity matched to radiation from the optical pumping source. The reflective coupler directs radiation from the optical pumping source into the optical resonator cavity and gain medium, conditioning the numerical aperture and spatial intensity distribution across the exit aperture.

US Patent:

6970493, Nov 29, 2005

Filed:

Dec 16, 2003

Appl. No.:

10/738124

Inventors:

Jason D. Henrie - Los Altos CA, US

Assignee:

Spectra Physics, Inc. - Mountain View CA

International Classification:

H01S003/09

US Classification:

372 69, 372 92, 372 99, 372103

Abstract:

An optically pumped laser has a gain medium positioned inside of an optical resonator cavity and disposed about a resonator optical axis. An optical pumping source is positioned outside of the optical resonator cavity. A reflective coupler with a coupler body, and an interior volume passing therethrough is positioned proximal to the optical pumping source. Light from the pumping source passes into an entrance aperture of the reflective coupler to an exit aperture of the reflective coupler positioned distal to the optical pumping source. The interior volume of the reflective coupler is bounded by a reflective surface, an entrance aperture and the exit aperture, and is substantially transparent to radiation from the optical pumping source. The reflective surface has a high reflectivity matched to radiation from the optical pumping source. The reflective coupler directs radiation from the optical pumping source into the optical resonator cavity and gain medium, conditioning the numerical aperture and spatial intensity distribution across the exit aperture.

US Patent:

20030206570, Nov 6, 2003

Filed:

Apr 14, 2003

Appl. No.:

10/413777

Inventors:

Jason Henrie - Los Altos CA, US
William Nighan - Menlo Park CA, US

International Classification:

H01S003/04
H01S003/091
H01S003/092
H01S003/094
H01S003/08

US Classification:

372/099000, 372/070000, 372/075000, 372/092000, 372/034000, 372/035000

Abstract:

An optically pumped laser has a gain medium positioned inside of an optical resonator cavity and disposed about a resonator optical axis. An optical pumping source is positioned outside of the optical resonator cavity. A reflective coupler with a coupler body, and an interior volume passing therethrough is positioned proximal to the optical pumping source. Light from the pumping source passes into an entrance aperture of the reflective coupler to an exit aperture of the reflective coupler positioned distal to the optical pumping source. The interior volume of the reflective coupler is bounded by a reflective surface, an entrance aperture and the exit aperture, and is substantially transparent to radiation from the optical pumping source. The reflective surface has a high reflectivity matched to radiation from the optical pumping source. The reflective coupler directs radiation from the optical pumping source into the optical resonator cavity and gain medium, conditioning the numerical aperture and spatial intensity distribution across the exit aperture.

US Patent:

58504079, Dec 15, 1998

Filed:

Nov 25, 1997

Appl. No.:

8/977820

Inventors:

William M. Grossman - Los Altos CA
Jason D. Henrie - Santa Clara CA

Assignee:

Lightwave Electronics Corporation - Mountain View CA

International Classification:

H01S 310

US Classification:

372 22

Abstract:

A third-harmonic crystal has a Brewster-cut dispersive output surface for separating the p-polarized fundamental and third-harmonic beams without introducing losses into the beams. The output surface of the third-harmonic crystal is optically uncoated, and thus insensitive to potential ultraviolet (UV)-induced damage. Frequency doubling and tripling lithium triborate (LBO) crystals are used with a Brewster-cut Nd-YAG active medium in a resonant cavity to generate UV light at 355 nm from infrared (IR) light at 1064 nm. Except for the tripling crystal output surface, the doubling and tripling crystal optical surfaces are normal-cut and anti-reflection (AR) coated.