JP2009516215A - 単一アパーチャ、多重光学導波管よりなるトランシーバ - Google Patents
単一アパーチャ、多重光学導波管よりなるトランシーバ Download PDFInfo
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- JP2009516215A JP2009516215A JP2008540239A JP2008540239A JP2009516215A JP 2009516215 A JP2009516215 A JP 2009516215A JP 2008540239 A JP2008540239 A JP 2008540239A JP 2008540239 A JP2008540239 A JP 2008540239A JP 2009516215 A JP2009516215 A JP 2009516215A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4246—Bidirectionally operating package structures
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
- G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
- G02B6/3652—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optics & Photonics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Optical Couplings Of Light Guides (AREA)
- Measurement Of Optical Distance (AREA)
- Lasers (AREA)
Abstract
【選択図】図7
Description
軸(bi−axial)、二重アパーチャのトランシーバと称される。それは、レーザ2からのビーム4の光軸及びレシーバ・テレスコープ6のFOVの軸が独立していること、及びレーザビームと検知器とが同じアパーチャを共用していないからである。この構成では、トランスミッタ・ビームとレシーバのFOVが重ならない領域においてレシーバの前側に「盲点」(blind spot)14を作り出してしまう点で問題がある。この盲点14の長さが動作の最小レンジ(距離)を表わす。もし、照明ビーム4光軸及びテレスコープ6のFOVの軸が盲点14を短くして最小範囲を減少させるために互いに向かって傾斜する構成は望ましいが、そうするとレーザビームとFOBとがそれらの発散のためにもはや重ならない離間点のところで始まる新たな盲点(図示せず)を作り出すであろう。
(a)トランスミッタとレシーバのアパーチャを小さくすることにより両者の間隔を縮小すること(但し、これは究極的には回折により制約される)。
(b)トランスミッタとレシーバのアパーチャを食い違いにずらすこと、すなわち、トランスミッタのアパーチャを焦点のところに配置するとともに検知器のアパーチャをレンズ近傍に配置してその視野を増大させる。しかし、この解決方法は検知器によりレーザのアパーチャが影になることで制約される。
Claims (8)
- 対物レンズと、該対物レンズが照明ビームへの光を形成するように該対物レンズの焦点近傍におかれた光源アパーチャを形成する光源と、ターゲットから反射した光を受けるための検知器アパーチャを形成するように前記光源の近傍におかれた検知器とを備え、前記光源アパーチャ及び検知器アパーチャは、前記光の波長の約20倍よりも小さい距離だけ互いに離間してなるトランシーバ。
- 前記距離は、約80μmである請求項1に記載のトランシーバ。
- 前記光源は、レーザに連結された第1のファイバ光学素子を含むとともに前記検知器は、検出素子に連結される第2のファイバ光学素子を含んでなる請求項1に記載のトランシーバ。
- 前記第1及び第2のファイバ光学素子は、プレート内の溝内に保持されるとともに前記距離よりも小さい直径を有してなる請求項3に記載のトランシーバ。
- 前記第1及び第2のファイバ光学素子のそれぞれの端部は、テーパ状ファイバ束により形成されてなる請求項3に記載のトランシーバ。
- 前記第1及び第2のファイバ光学素子のそれぞれの端部は、平坦状導波管により形成されてなる請求項3に記載のトランシーバ。
- トランシーバのためのファイバ光学素子を作製する方法であって、ファイバ光学素子をプレートの溝内に固定し、該ファイバ光学素子を研磨、機械加工、又はそのクラッドをエッチングすることによって、その直径を縮小させてなる方法。
- 請求項1に記載のトランシーバを使用して短距離における極度の低速度を計測する方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US73516405P | 2005-11-10 | 2005-11-10 | |
US60/735,164 | 2005-11-10 | ||
PCT/US2006/043928 WO2007084209A2 (en) | 2005-11-10 | 2006-11-13 | Single aperture multiple optical waveguide transceiver |
Publications (2)
Publication Number | Publication Date |
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JP2009516215A true JP2009516215A (ja) | 2009-04-16 |
JP5478888B2 JP5478888B2 (ja) | 2014-04-23 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008540239A Expired - Fee Related JP5478888B2 (ja) | 2005-11-10 | 2006-11-13 | 単一アパーチャ、多重光学導波管よりなるトランシーバ |
Country Status (6)
Country | Link |
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US (2) | US8190030B2 (ja) |
EP (1) | EP1949154B1 (ja) |
JP (1) | JP5478888B2 (ja) |
AU (1) | AU2006336215B2 (ja) |
CA (2) | CA2753398A1 (ja) |
WO (1) | WO2007084209A2 (ja) |
Cited By (1)
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JP2022527550A (ja) * | 2019-04-04 | 2022-06-02 | エヴァ インコーポレイテッド | マルチモード導波管光検出器を有するlidarシステム |
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Also Published As
Publication number | Publication date |
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CA2629319A1 (en) | 2007-07-26 |
WO2007084209A3 (en) | 2007-11-29 |
CA2629319C (en) | 2012-01-03 |
CA2753398A1 (en) | 2007-07-26 |
US20120227263A1 (en) | 2012-09-13 |
JP5478888B2 (ja) | 2014-04-23 |
AU2006336215B2 (en) | 2010-11-11 |
EP1949154B1 (en) | 2016-08-10 |
AU2006336215A1 (en) | 2007-07-26 |
US8190030B2 (en) | 2012-05-29 |
EP1949154A2 (en) | 2008-07-30 |
US20090142066A1 (en) | 2009-06-04 |
EP1949154A4 (en) | 2012-11-14 |
WO2007084209A2 (en) | 2007-07-26 |
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