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1. WO2018008142 - WAVELENGTH CONVERTING APPARATUS

Publication Number WO/2018/008142
Publication Date 11.01.2018
International Application No. PCT/JP2016/070235
International Filing Date 08.07.2016
IPC
G02F 1/37 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
CPC
G02F 1/37
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
H01S 3/0071
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
005Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
0071Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
H01S 3/0092
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
005Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
0092Nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity
H01S 3/025
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
025of solid state lasers, e.g. housings or mountings
H01S 3/1618
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
14characterised by the material used as the active medium
16Solid materials
1601characterised by an active (lasing) ion
1603rare earth
1618ytterbium
H01S 3/2375
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
23Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
2375Hybrid lasers
Applicants
  • ギガフォトン株式会社 GIGAPHOTON INC. [JP]/[JP]
Inventors
  • 淵向 篤 FUCHIMUKAI, Atsushi
Agents
  • 松浦 憲三 MATSUURA, Kenzo
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WAVELENGTH CONVERTING APPARATUS
(FR) APPAREIL DE CONVERSION DE LONGUEUR D'ONDE
(JA) 波長変換装置
Abstract
(EN)
Provided is a wavelength converting device, comprising at least one moving device including the followings: A. a crystal holder that holds a non-linear crystal for converting the wavelength of incident laser beam and emitting the resultant laser beam; and B. a driving unit that includes a voice coil motor and moves the crystal holder at least in a direction perpendicular to a first direction which is an optical path axis direction of the laser beam. The driving unit rotates the crystal holder to change the angle of incidence of the laser beam on the non-linear crystal. The driving unit includes the followings: a two-dimensional driving unit constituted by including a planar voice coil motor; and a one-dimensional driving unit constituted by including a cylindrical voice coil motor. The two-dimensional driving unit performs linear driving in a second direction perpendicular to the first direction, and rotation driving around a third direction perpendicular to the first and the second directions. The one-dimensional driving unit performs linear driving in the third direction.
(FR)
L'invention porte sur un dispositif de conversion de longueur d'onde, comprenant au moins un dispositif mobile comprenant les éléments suivants: un support de cristal qui maintient un cristal non linéaire pour convertir la longueur d'onde du faisceau laser incident et émettre le faisceau laser résultant; et B une unité de commande qui comprend un moteur à bobine acoustique et qui déplace le support de cristal au moins dans une direction perpendiculaire à une première direction qui est une direction d'axe de trajet optique du faisceau laser. L'unité de commande fait tourner le support de cristal pour modifier l'angle d'incidence du faisceau laser sur le cristal non linéaire. L'unité de commande comprend les éléments suivants : une unité de commande bidimensionnelle constituée par l'inclusion d'un moteur à bobine acoustique planaire; et une unité de commande unidimensionnelle constituée par l'inclusion d'un moteur à bobine acoustique cylindrique. L'unité commande bidimensionnelle effectue une commande linéaire dans une deuxième direction perpendiculaire à la première direction, et une commande de rotation autour d'une troisième direction perpendiculaire aux première et seconde directions. L'unité de commande unidimensionnelle effectue une commande linéaire dans la troisième direction.
(JA)
波長変換装置であって、以下を含む少なくとも1つの移動装置を備える:A.入射したレーザ光を波長変換して出力する非線形結晶を保持する結晶ホルダ、及び、B.ボイスコイルモータを含む駆動部であって、結晶ホルダを、少なくともレーザ光の光路軸方向である第1の方向に直交する方向に移動させる駆動部。また、駆動部は、レーザ光の非線形結晶への入射角度を変更するように結晶ホルダを回転させる。駆動部は、以下を含む:平面型ボイスコイルモータを含んで構成された2次元駆動部、及び、円筒型ボイスコイルモータを含んで構成された1次元駆動部。2次元駆動部は、第1の方向に直交する第2の方向への直線駆動と、第1及び第2の方向に直交する第3の方向を中心とした回転駆動とを行う。1次元駆動部は、第3の方向への直線駆動を行う。
Also published as
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