KR970002422A - Light modulation system - Google Patents

Light modulation system Download PDF

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Publication number
KR970002422A
KR970002422A KR1019950019049A KR19950019049A KR970002422A KR 970002422 A KR970002422 A KR 970002422A KR 1019950019049 A KR1019950019049 A KR 1019950019049A KR 19950019049 A KR19950019049 A KR 19950019049A KR 970002422 A KR970002422 A KR 970002422A
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KR
South Korea
Prior art keywords
harmonic
modulation system
focusing lens
mgf
optical modulation
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KR1019950019049A
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Korean (ko)
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KR100374805B1 (en
Inventor
이항우
김용훈
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김광호
삼성전자 주식회사
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Priority to KR1019950019049A priority Critical patent/KR100374805B1/en
Publication of KR970002422A publication Critical patent/KR970002422A/en
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Publication of KR100374805B1 publication Critical patent/KR100374805B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/35—Non-linear optics
    • G02F1/37—Non-linear optics for second-harmonic generation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/35—Non-linear optics
    • G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
    • G02F1/3503—Structural association of optical elements, e.g. lenses, with the non-linear optical device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/12—Function characteristic spatial light modulator

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

본 발명은 광변조시스템에 관한 것으로서, 제2고조파를 회절에 의해 제어하는 광변조시스테에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical modulation system, and more particularly, to an optical modulation system for controlling second harmonics by diffraction.

본 발명의 광변조 시스템은: 제2고조파를 발생하는 제2고조파발생부; 상기 제2고조파 발생부의 제2고조파 출력의 진행 경로 상에 마련되는 콜리메이팅 렌즈; 상기 콜리메이팅 렌즈를 통과한 제2고조파를 일부 다른 경로로 반사하며 투과하는 제2고조파는 접속하는 포커싱 렌즈; 상기 포커싱 렌즈의 입사면에 형성되어 제2고조파에 일부 포함된 기본파를 제거하는 필터막; 상기 포커싱 렌즈를 투과한 제2고조파를 회절에 의해 제어하는 광변조부를 구비한다. 이와 같이 함으로써, 기존의 제2고조파 발생부에 마련되었던 빔스프리터와 필터가 제거되고, 대신에 빔 스프리터와 필터의 기능이 제2고조파 발생부와 광변조부 사이의 렌즈계에 부여됨으로써 제2고조파 발생부의 출력 미러와 렌즈계의 포커싱 렌즈를 매우 가깝게 위치시킬 수 있게 되고, 결과적으로 광변조부에 짧은 직경의 빔을 제공함으로써 광 변조 효율을 극대화할 수 있고, 또한 스위칭 타임을 크게 단축시킬 수 있게 된다.The optical modulation system of the present invention comprises: a second harmonic generator for generating a second harmonic; A collimating lens provided on a traveling path of the second harmonic output of the second harmonic generator; A focusing lens for reflecting the second harmonic passing through the collimating lens in some other path and transmitting the second harmonic; A filter film formed on an incident surface of the focusing lens to remove a fundamental wave partially included in a second harmonic; And an optical modulator for controlling the second harmonic transmitted through the focusing lens by diffraction. In this way, the beam splitter and the filter provided in the existing second harmonic generator are removed, and instead, the functions of the beam splitter and the filter are assigned to the lens system between the second harmonic generator and the optical modulator, thereby generating second harmonics. The negative output mirror and the focusing lens of the lens system can be positioned very close to each other, and as a result, by providing a short diameter beam to the optical modulator, the optical modulation efficiency can be maximized and the switching time can be greatly shortened.

Description

광변조 시스템Light modulation system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 광변조 시스템의 개략적 구성도.2 is a schematic configuration diagram of an optical modulation system according to the present invention.

Claims (11)

제2고조파를 발생하는 제2고조파 발생부; 상기 제2고조파 발생부의 제2고조파 출력의 진행 경로 상에 마련되는 콜리메이팅 렌즈; 상기 콜리 메이팅 렌즈를 통과한 제2고조파의 일부를 다른 경로로 반사하며, 투과하는 제2고조파는 접속하는 포커싱 렌즈; 상기 포커싱 렌즈의 광입사면에 형성되어 제2고조파에 일부 포함된 기본파를 제거하는 필터막; 상기 포커싱 렌즈를 투과한 제2고조파를 회절에 의해 제어하는 광조변부를 구비하는 것을 특징으로 하는 광변조 시스템.A second harmonic generator for generating a second harmonic; A collimating lens provided on a traveling path of the second harmonic output of the second harmonic generator; A focusing lens for reflecting a part of the second harmonics passing through the collimating lens to another path and transmitting the second harmonics; A filter film formed on a light incident surface of the focusing lens to remove a fundamental wave partially included in a second harmonic; And a light modulation part for controlling the second harmonic transmitted through the focusing lens by diffraction. 제1항에 있어서, 상기 포커싱 렌즈의 입사면이 평탄하고, 출사면은 볼록한 구면 형상인 것을 특징으로 하는 광변조 시스템.The optical modulation system of claim 1, wherein the incident surface of the focusing lens is flat and the exit surface has a convex spherical shape. 제1항 또는 제2항에 있어서, 상기 포커싱 렌즈는 제2고조파의 진행 경로에 대해 45°경사지게 배치되어 있는 것을 특징으로 하는 광변조 시스템.The optical modulation system according to claim 1 or 2, wherein the focusing lens is disposed at an inclination of 45 ° with respect to the traveling path of the second harmonic. 제1항 또는 제2항에 있어서, 상기 반사막은 MgF2와 TiO2의 단위층을 1조로하는 다중의 적층구조를 가지는 것을 특징으로 하는 광변조 시스템.The optical modulation system as claimed in claim 1 or 2, wherein the reflective film has a multi-layered structure including one set of unit layers of MgF 2 and TiO 2 . 제4항에 있어서, 상기 포커싱 렌즈의 입사면이 평탄하고, 출사면은 볼록한 구명 형상인 것을 특징으로 하는 광변조 시스템.The optical modulation system of claim 4, wherein the incident surface of the focusing lens is flat and the exit surface has a convex life shape. 제4항에 있어서, 상기 포커싱 렌즈는 제2고조파의 진행 경로에 대해 45°경사지게 배치되어 있는 것을 특징으로 하는 광변조 시스템.5. The optical modulation system of claim 4, wherein the focusing lens is disposed at an angle of 45 [deg.] To the traveling path of the second harmonic. 제5항에 있어서, 상기 포커싱 렌즈는 제2고조파의 진행 경로에 대해 45°경사지게 배치되어 있는 것을 특징으로 하는 광변조 시스템.6. The optical modulation system of claim 5, wherein the focusing lens is disposed at an angle of 45 DEG to the traveling path of the second harmonic. 제4항에 있어서, 상기 반사막의 최상위층은 91.7nm의 MgF2박막이 형성되며, 상기 단위층은 12층이며, 각 단위층의 MgF2는 183.3nm 그리고 TiO2는 105.4nm의 두께를 각각 가지는 것을 특징으로 하는 광변조 시스템.The MgF 2 thin film of 91.7 nm is formed on the top layer of the reflective film, and the unit layer is 12 layers, MgF 2 of each unit layer has a thickness of 183.3 nm and TiO 2 of 105.4 nm, respectively. Light modulation system characterized in that. 제5항에 있어서, 상기 반사막의 최상위층은 91.7nm의 MgF2박막이 형성되며, 상기 단위층은 12층이며, 각 단위층의 MgF2는 183.3nm 그리고 TiO2는 105.4nm의 두께를 각각 가지는 것을 특징으로 하는 광변조 시스템.The MgF 2 thin film of 91.7 nm is formed on the uppermost layer of the reflecting film, wherein the unit layer is 12 layers, and MgF 2 of each unit layer has a thickness of 183.3 nm and TiO 2 of 105.4 nm, respectively. Light modulation system characterized in that. 제6항에 있어서, 상기 반사막의 최상위층은 91.7nm의 MgF2박막이 형성되며, 상기 단위층은 12층이며, 각 단위층의 MgF2는 183.3nm 그리고 TiO2는 105.4nm의 두께를 각각 가지는 것을 특징으로 하는 광변조 시스템.7. The method of claim 6, choesangwicheung of the reflective film is formed of a thin film of MgF 2 91.7nm, said unit layer is a layer 12, the MgF 2 is 183.3nm and the TiO 2 of the unit layer has a thickness of 105.4nm, respectively Light modulation system characterized in that. 제7항에 있어서, 상기 반사막의 최상위층은 91.7nm의 MgF2박막이 형성되며, 상기 단위층은 12층이며, 각 단위층의 MgF2는 183.3nm 그리고 TiO2는 105.4nm의 두께를 각각 가지는 것을 특징으로 하는 광변조 시스템.10. The method of claim 7, wherein the top layer of the reflective film is formed of 91.7nm MgF 2 thin film, the unit layer is 12 layers, MgF 2 of each unit layer has a thickness of 183.3nm and TiO 2 105.4nm respectively. Light modulation system characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950019049A 1995-06-30 1995-06-30 Acousto-optic modulating system KR100374805B1 (en)

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KR1019950019049A KR100374805B1 (en) 1995-06-30 1995-06-30 Acousto-optic modulating system

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Application Number Priority Date Filing Date Title
KR1019950019049A KR100374805B1 (en) 1995-06-30 1995-06-30 Acousto-optic modulating system

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KR970002422A true KR970002422A (en) 1997-01-24
KR100374805B1 KR100374805B1 (en) 2003-05-17

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KR920009157B1 (en) * 1987-12-31 1992-10-14 삼성전자 주식회사 Membrane for reflection prevention

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