Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991006994) PHASE-LOCKED, FIBRE BUNDLE EXCITED, STACKED SLABS, LASER SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006994 International Application No.: PCT/AU1990/000511
Publication Date: 16.05.1991 International Filing Date: 25.10.1990
Chapter 2 Demand Filed: 23.05.1991
IPC:
H01S 3/07 (2006.01) ,H01S 3/0941 (2006.01) ,H01S 3/23 (2006.01) ,H01S 5/40 (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
05
Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06
Construction or shape of active medium
07
consisting of a plurality of parts, e.g. segments
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
09
Processes or apparatus for excitation, e.g. pumping
091
using optical pumping
094
by coherent light
0941
of a semiconductor laser, e.g. of a laser diode
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
23
Arrangement of two or more lasers not provided for in groups H01S3/02-H01S3/14113
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
5
Semiconductor lasers
40
Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02-H01S5/30128
Applicants:
AUSTRALIAN ELECTRO OPTICS PTY. LTD. [AU/AU]; 1st Floor 582 St. Kilda Road Melbourne, VIC 3004, AU (AllExceptUS)
HUGHES, John, Leonard [GB/AU]; AU (UsOnly)
Inventors:
HUGHES, John, Leonard; AU
Agent:
MEDLYCOTT, John, Sheffield; Box 566 Collins Street Post Office Melbourne, VIC 3000, AU
Priority Data:
PJ 703325.10.1989AU
Title (EN) PHASE-LOCKED, FIBRE BUNDLE EXCITED, STACKED SLABS, LASER SYSTEM
(FR) SYSTEME LASER A BLOCAGE DE PHASES, A EXCITATION PAR FAISCEAU DE FIBRES ET A EMPILAGE DE PLAQUES
Abstract:
(EN) This invention relates to a powerful ans scaleable slab (1) laser system where slabs (1) are stacked on top of each other such that the laser beam being generated within the invention passes to and fro through said stack via optical polished face pairs (2), said resonator being formed by the output mirror (3), 45° beam reflectors (4) and the 100 % laser beam reflector (5), the output beam (6) being either a single beam of elliptical cross-section or a series of laser beams of circular cross-section. The slabs (1) are stacked on top of each other with coolant channel (7) being as small as possible whilst mirrors (8) trap the pump light within the invention. To minimise thermal heating of said slabs the diode excitation light is generated at a remote site and conveyed into the said slabs using bundles of optical fibres (9), said pump light entering via the unpolished side face pairs. The mirrors (3, 4, 5) may be replaced by one 100 % laser beam reflector (4) and one partially transmitting output mirror (3). In the laser amplifier arrangement, an input beam (15) is split such that each beam portion (18) passes through a respective slab (1). The invention has applications as a powerful laser beam generator in the industrial and defence fields.
(FR) L'invention se rapporte à un système laser puissant à plaques échelonnables (1) où les plaques sont empilées l'une sur l'autre de façon que le rayon laser généré par le système traverse de part et d'autre l'empilage en question via des paires optiques à face polie (2), le résonateur en question étant formé par le miroir de sortie (3), des réflecteurs de rayon à 45° (4) et le réflecteur de rayon laser à 100 %, le rayon de sortie étant soit un simple rayon à section transversale elliptique ou une série de rayons laser à section transversale circulaire. Les plaques (1) sont empilées les unes sur les autres avec un canal de refroidissement (7) le plus petit possible tandis que des miroirs (8) retiennent la lumière de pompage dans le système. Afin de minimiser l'échauffement thermique des plaques, la lumière d'excitation par diode est produite à distance et amenée aux plaques par des faisceaux de fibres optiques, la lumière pompée pénétrant via le côté non poli des paires optiques. Les miroirs (3,4,5) peuvent être remplacés par un réflecteur de rayon laser à 100 % (4) et un miroir de sortie (3) à transmission partielle. Dans le système amplificateur du laser, un rayon d'entrée (15) est scindé de façon que chaque portion (18) de rayon traverse une plaque respective (1).) L'invention peut s'appliquer à des domaines industriels et de la défense en tant que générateur puissant de rayon laser.
Designated States: AU, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990066207