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1. WO1996006375 - RADIATION SOURCE UNIT FOR SUPPLYING SHORT-WAVE OPTICAL RADIATION, AND METHOD OF ASSEMBLING SUCH A UNIT

Publication Number WO/1996/006375
Publication Date 29.02.1996
International Application No. PCT/IB1995/000653
International Filing Date 16.08.1995
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
G02F 1/377 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
35Non-linear optics
37for second-harmonic generation
377in an optical waveguide structure
CPC
G02B 6/4227
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
4219Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
422Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
4227Active alignment methods, e.g. procedures and algorithms
G02F 1/377
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
35Non-linear optics
37for second-harmonic generation
377in an optical waveguide structure
Applicants
  • PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL
  • PHILIPS NORDEN AB [SE/SE]; Kottbygatan 5, Kista S-164 85 Stockholm, SE (SE)
Inventors
  • JONGERIUS, Michiel, Johannes; NL
  • DRENTEN, Ronald, Reindert; NL
Agents
  • FAESSEN, Louis, Marie, Hubertus; Internationaal Octrooibureau B.V. P.O. Box 220 NL-5600 AE Eindhoven, NL
Priority Data
94202406.823.08.1994EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RADIATION SOURCE UNIT FOR SUPPLYING SHORT-WAVE OPTICAL RADIATION, AND METHOD OF ASSEMBLING SUCH A UNIT
(FR) UNITE DE SOURCE DE RAYONNEMENT PRODUISANT UN RAYONNEMENT OPTIQUE A ONDES COURTES ET PROCEDE D'ASSEMBLAGE DE CETTE UNITE
Abstract
(EN)
The invention relates to a radiation source unit (1) for supplying short-wave optical radiation, and to a method of assembling such a unit. The radiation source unit (1) comprises a diode laser (11) and a waveguide (13) of a non-linear optical material for converting the diode laser radiation into radiation having a smaller wavelength. The diode laser (11) is provided in a bush (5) having a first end (7) and a second, open end (9). The second end (9) is adapted to accomodate a first holder (17) in which a lens system (15) is arranged for imaging the exit plane of the diode laser (11) on the entrance plane of the waveguide (13). At a side of the first holder (17) remote from the diode laser (11) a second holder (27) is secured in which the waveguide (13) is arranged. Said holders (17, 27) are aligned and fixed with respect to each other in such a way that the chief ray of the diode laser beam, the optical axis of the lens system (15) and the axis of the waveguide (13) are in alignment, and that the diode laser beam is focused on the entrance aperture of the waveguide (13).
(FR)
Cette invention concerne une unité (1) de source de rayonnement produisant un rayonnement optique à ondes courtes, et un procédé d'assemblage de cette unité. L'unité (1) de source de rayonnement comprend un laser (11) à diode et un guide d'ondes (13) réalisé dans un matériau optique non linéaire pour transformer le rayonnement du laser à diode en un rayonnement ayant une longueur d'onde plus courte. Le laser (11) à diode est placé dans une enveloppe (5) comprenant une première extrémité (7) et une deuxième extrémité (9) qui est ouverte. Cette deuxième extrémité (9) est prévue pour recevoir un premier support (17) dans lequel un système de lentilles (15) est disposé pour visualiser le plan de sortie du laser (11) à diode sur le plan d'entrée du guide d'ondes (13). Sur un côté du premier support (17) qui est éloigné du laser (11) à diode, un deuxième support (27) est fixé dans lequel se trouve le guide d'ondes (13). Les deux supports (17, 27) sont alignés et fixés l'un par rapport à l'autre de manière à ce que le rayon principal du faisceau du laser à diode, l'axe optique du système de lentilles (15) et l'axe du guide d'ondes (13) soient alignés, et que le faisceau du laser à diode soit localisé sur l'ouverture d'entrée du guide d'ondes (13).
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