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1. WO2000044073 - DIODE-PUMPED LASER WITH FUNNEL-COUPLED PUMP SOURCE

Publication Number WO/2000/044073
Publication Date 27.07.2000
International Application No. PCT/US2000/001090
International Filing Date 14.01.2000
Chapter 2 Demand Filed 12.07.2000
IPC
H01S 3/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
02Constructional details
04Cooling arrangements
H01S 3/042 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
02Constructional details
04Cooling arrangements
042for solid state lasers
H01S 3/0941 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
0941of a semiconductor laser, e.g. of a laser diode
CPC
H01S 3/0401
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
02Constructional details
04Cooling arrangements
0401of optical elements being part of laser resonator, e.g. windows, mirrors, lenses
H01S 3/042
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
02Constructional details
04Cooling arrangements
042for solid state lasers
H01S 3/094057
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
094049Guiding of the pump light
094057by tapered duct or homogenized light pipe, e.g. for concentrating pump light
H01S 3/0941
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
0941of a laser diode
H01S 3/09415
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
0941of a laser diode
09415the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
Applicants
  • SPECTRA-PHYSICS LASERS, INC. [US/US]; 1335 Terra Bella Avenue Mountain View, CA 94043, US
Inventors
  • HENRIE, Jason, D.; US
  • NIGHAN, William, L., Jr.; US
Agents
  • DAVIS, Paul; Wilson Sonsini Goodrich & Rosati 650 Page Mill Road Palo Alto, CA 94304-1050, US
Priority Data
09/401,14622.09.1999US
60/116,45519.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DIODE-PUMPED LASER WITH FUNNEL-COUPLED PUMP SOURCE
(FR) LASER POMPE PAR DIODE A SOURCE DE POMPAGE COUPLEE A UN ORIFICE EN ENTONNOIR
Abstract
(EN)
An optically pumped laser has a gain medium positioned inside of an optical resonator cavity (120) and disposed about a resonator optical axis (150). An optical pumping source (100) is positioned outside of the optical resonator cavity. A reflective coupler (110) 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 (180) of the reflective coupler to an exit aperture (190) of the reflective coupler positioned distal to the optical pumping source. The interior volume of the reflective coupler is bounded by a reflective surface (170), 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.
(FR)
L'invention concerne un laser pompé optiquement, présentant un milieu de gain placé à l'intérieur d'une cavité (120) résonnante optique, autour d'un axe (150) optique de cette cavité. On a placé une source (100) de pompage optique à l'extérieur de la cavité résonnante optique. On a placé un coupleur (110) réflectif, présentant un corps de coupleur, ainsi qu'un volume intérieur passant à travers dudit coupleur, à proximité de la source de pompage optique. La lumière de la source de pompage pénètre dans une ouverture (180) d'entrée du coupleur réflectif en direction d'une ouverture (190) de sortie du coupleur réflectif située de manière distale par rapport à la source de pompage optique. Le volume intérieur du coupleur réflectif est limité par une surface (170) réflective, l'ouverture d'entrée et l'ouverture de sortie, et est sensiblement transparent aux rayons de la source de pompage optique. La surface réflective présente un pouvoir réflecteur élevé, adapté aux rayons de la source de pompage optique. Le coupleur réflectif dirige les rayons de la source de pompage optique dans la cavité résonnante optique et le milieu de gain, conditionnant l'ouverture numérique et la distribution d'intensité spatiale au niveau de l'ouverture de sortie.
Also published as
Latest bibliographic data on file with the International Bureau