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1. WO1991001056 - SEGMENTED, FIBRE COUPLED DIODE LASER ARRAYS

Publication Number WO/1991/001056
Publication Date 24.01.1991
International Application No. PCT/AU1990/000293
International Filing Date 06.07.1990
Chapter 2 Demand Filed 05.02.1991
IPC
G02B 6/42 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
42Coupling light guides with opto-electronic elements
H01S 5/062 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
5Semiconductor lasers
06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
062by varying the potential of the electrodes
H01S 5/40 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
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02-H01S5/30128
CPC
G02B 6/4249
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
42Coupling light guides with opto-electronic elements
4201Packages, e.g. shape, construction, internal or external details
4249comprising arrays of active devices and fibres
H01S 5/06243
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
5Semiconductor lasers
06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
062by varying the potential of the electrodes
06233Controlling other output parameters than intensity or frequency
06243controlling the position or direction of the emitted beam
H01S 5/4012
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
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
4012Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
H01S 5/4025
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
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
4025Array arrangements, e.g. constituted by discrete laser diodes or laser bar
H01S 5/4062
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
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
4025Array arrangements, e.g. constituted by discrete laser diodes or laser bar
4031Edge-emitting structures
4062with an external cavity or using internal filters, e.g. Talbot filters
H01S 5/4075
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
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
4025Array arrangements, e.g. constituted by discrete laser diodes or laser bar
4075Beam steering
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
Agents
  • MEDLYCOTT, John, Sheffield; Box 566 Collins Street Post Office Melbourne, VIC 3000, AU
Priority Data
PJ 512106.07.1989AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEGMENTED, FIBRE COUPLED DIODE LASER ARRAYS
(FR) RESEAUX LASER SEGMENTES A DIODES COUPLEES PAR FIBRES
Abstract
(EN)
The invention relates to a diode-fibre hybrid laser, where groups of coherently phase-locked diode arrays (2) emit beams (4) which are focused into optical fibres (7). The mirrored output ends of the fibres are bundled into a phase locked array (11), the phase locking achieved by direct optical coupling between the cores of the optical fibres. The phase locking may also be achieved by reflection into neighbouring cores off a partially transmitting output mirror (8) or by a microlens array. Also claimed is an individual hybrid oscillator comprising a diode laser and a lens focussing the output of the diode laser into a passive optical fibre, the other end of which is a partially transmitting mirror. The individual oscillators in the array can be selectively switched to produce a high definition laser output beam image, or to produce a time difference between emission of light across the output aperture thereby causing controlled tilting of the output beam wave front and hence steering of the output beam (12).
(FR)
L'invention se rapporte à un laser hybride à diodes et à fibres, dans lequel des groupes de réseaux de diodes à verrouillage de phase cohérente (2) émettent des faisceaux (4) qui sont focalisés dans des fibres optiques (7). Les extrémités de sortie reflétées des fibres sont réunies en faisceau dans un réseau à verrouillage de phase (11), dont le verrouillage de phase est assuré par couplage optique directe entre les noyaux des fibres optiques. Le verrouillage de phase peut également être obtenu par reflexion dans des noyaux voisins au moyen d'un miroir de sortie à transmission partielle (8) ou par un réseau de micro-lentilles. Est également revendiqué un oscillateur hybride séparé comprenant un laser à diodes et une lentille focalisant la sortie du laser à diodes dans une fibre optique passive, dans l'autre extrémité et constituée par un miroir à transmission partielle. Les oscillateurs séparés du réseau peuvent être soumis à une commutation sélective destinée à produire une image à faisceaux de sortie laser haute définition ou à créer une différence de temps entre l'émission de la lumière à travers l'ouverture de sortie, ce qui entraîne une inclinaison régulée du front d'ondes du faisceau de sortie, permettant ainsi de diriger le faisceau de sortie (12).
Also published as
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