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1. (WO1986001344) CONDUCTIVELY COOLED LASER ROD
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1986/001344 International Application No.: PCT/US1985/001411
Publication Date: 27.02.1986 International Filing Date: 24.07.1985
IPC:
H01S 3/04 (2006.01) ,H01S 3/02 (2006.01) ,H01S 3/042 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
02
Constructional details
04
Cooling arrangements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
02
Constructional details
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
02
Constructional details
04
Cooling arrangements
042
for solid state lasers
Applicants: HUGHES AIRCRAFT COMPANY[US/US]; 200 North Sepulveda Boulevard El Segundo, CA 90245, US
Inventors: KAHAN, Osher; US
Agent: STERNFELS, Lewis, B. @; Hughes Aircraft Company P.O. Box 1042, Bldg. C2, M/S A126 El Segundo, CA 90245, US
Priority Data:
636,89102.08.1984US
Title (EN) CONDUCTIVELY COOLED LASER ROD
(FR) BARRE DE LASER REFROIDIE PAR CONDUCTION
Abstract:
(EN) An improved laser rod cooling system in which a laser rod (18) is cooled by conducting the heat generated thereby to a flexible, cushioning gel (21) which surrounds and contacts the rod along its length and secures the rod within a fully enclosing support (22). The support is thermally conductive and transparent to the pumping energy from a flashlamp (12). The gel material absorbs differential thermal expansion between the rod and its support to avoid any stresses otherwise exerted on the rod, while the complete surrounding of the rod by the support minimizes thermal gradients within the rod. Thus, a light beam with minimal optical distortion is generated by the laser rod.
(FR) Dans un système amélioré de refroidissement de barre de laser, on refroidit une barre de laser (18) en conduisant la chaleur qu'elle produit dans un colloïde souple amortisseur (21) qui entoure et contacte la barre sur toute sa longueur et la soutient dans un support (22) qui la confine entièrement. Le support est thermoconducteur et transparent à l'énergie de pompage d'une lampe éclair (12). Le matériau colloïdal absorbe l'expansion thermique différentielle entre la barre et son support pour empêcher des tensions qui s'exerceraient autrement sur la barre, alors que le fait que le support confine entièrement la barre réduit au maximum des gradients thermiques dans la barre. Un faisceau de lumière ayant une distorsion optique minimum est ainsi généré par la barre de laser.
Designated States: JP, KR, NO
European Patent Office (EPO) (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)