JP6994128B1 - 光コム発生装置 - Google Patents
光コム発生装置 Download PDFInfo
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- JP6994128B1 JP6994128B1 JP2021055640A JP2021055640A JP6994128B1 JP 6994128 B1 JP6994128 B1 JP 6994128B1 JP 2021055640 A JP2021055640 A JP 2021055640A JP 2021055640 A JP2021055640 A JP 2021055640A JP 6994128 B1 JP6994128 B1 JP 6994128B1
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- 230000003287 optical effect Effects 0.000 title claims abstract description 252
- 238000005259 measurement Methods 0.000 claims abstract description 96
- 210000001520 comb Anatomy 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000010586 diagram Methods 0.000 abstract description 16
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 20
- 230000010355 oscillation Effects 0.000 description 19
- 238000002955 isolation Methods 0.000 description 16
- 230000007704 transition Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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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
- G01S7/4814—Constructional features, e.g. arrangements of optical elements of transmitters alone
- G01S7/4815—Constructional features, e.g. arrangements of optical elements of transmitters alone using multiple transmitters
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
-
- 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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
-
- 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
- G01S7/491—Details of non-pulse systems
- G01S7/4911—Transmitters
-
- 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
- G01S7/491—Details of non-pulse systems
- G01S7/4912—Receivers
- G01S7/4917—Receivers superposing optical signals in a photodetector, e.g. optical heterodyne detection
-
- 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
- G02F1/01—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 for the control of the intensity, phase, polarisation or colour
-
- 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
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
Claims (6)
- 測定光の干渉信号と基準光の干渉信号の時間差から距離を測定する光コム距離計測用の光コム発生装置であって、
M(Mは2以上の整数)個の光コム発生器を備える光コム発生部と、
基準周波数信号に位相同期されたN(Nは3以上の整数)種類の変調周波数が巡回的に切り替えられた互いに変調周波数が異なるM種類の駆動信号を上記M個の光コム発生器に供給して、上記光コム発生部からM種類の光コムを出力させる制御を行う駆動制御部と
を備え、
上記光コム発生部は、上記M個の光コム発生器から、それぞれ周期的に強度又は位相が変調され、N種類の変調周波数が巡回的に切り替えられた互いに変調周波数が異なるM種類の光コムを出力することを特徴とする光コム発生装置。 - 上記駆動制御部は、
上記基準周波数信号に位相同期された互いに変調周波数の異なるN種類の変調信号を出力するN個の信号源と、
上記N個の信号源に接続されたN入力M出力のスイッチ部と、
上記スイッチ部の動作を制御して、N種類の変調信号を巡回的に切り替えた互いに変調周波数が異なるM種類の変調信号を出力させる切り替え制御手段と
を備え、
上記M種類の変調信号を駆動信号として上記M個の光コム発生器に供給することを特徴とする請求項1記載の光コム発生装置。 - 上記N個の信号源は、それぞれPLL回路により基準の周波数信号に位相同期された変調周波数が固定された状態のN種類の変調信号を発生することを特徴とする請求項2に記載の光コム発生装置。
- 上記駆動制御部は、
上記基準周波数信号に位相同期されたシステムクロックにより動作するM個のDDS(Direct Digital Synthesizer)からなる信号源と、
上記M個のDDSの動作を制御して、N種類の変調周波数を巡回的に切り替えた互いに変調周波数が異なるM種類の変調信号を出力させる切り替え制御手段と
を備え、
上記M種類の変調信号を駆動信号として上記光コム発生部に供給することを特徴とする請求項1記載の光コム発生装置。 - 測定光の干渉信号と基準光の干渉信号の時間差から距離を測定する光コム距離計測用の光コム発生装置であって、
基準周波数信号に位相同期された互いに変調周波数の異なるN種類の変調信号を駆動信号として出力するN個の信号源と、
上記N個の信号源から出力される駆動信号により駆動され、それぞれ周期的に強度又は位相が変調され、互いに変調周波数が異なるN種類の光コムを発生するN個の光コム発生器を備える光コム発生部と、
上記光コム発生部に備えた上記N個の光コム発生器により発生されるN種類の光コムから、互いに変調周波数が異なるM種類の光コムを巡回的に選択して出力するN入力M出力の光スイッチと、
上記基準周波数信号に同期して上記光スイッチによる光コムの選択動作を制御する光スイッチ制御部と
を備えることを特徴とする光コム発生装置。 - 上記駆動制御部は、切替順序の一方向と逆方向を連続させて切り替える巡回方式でN(Nは3以上の整数)種類の変調周波数が巡回的に切り替えられた互いに変調周波数が異なるM(Mは2以上の整数)種類の光コムを上記光コム発生部から出力させる制御を行うことを特徴とする請求項1乃至請求項4の何れか1項に記載の光コム発生装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021055640A JP6994128B1 (ja) | 2021-03-29 | 2021-03-29 | 光コム発生装置 |
EP21935161.6A EP4318107A1 (en) | 2021-03-29 | 2021-12-02 | Optical comb generation device |
CN202180096468.3A CN117083562A (zh) | 2021-03-29 | 2021-12-02 | 光梳产生装置 |
PCT/JP2021/044296 WO2022209008A1 (ja) | 2021-03-29 | 2021-12-02 | 光コム発生装置 |
US18/553,055 US20240192365A1 (en) | 2021-03-29 | 2021-12-02 | Optical Comb Generation Device |
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JP2021055640A JP6994128B1 (ja) | 2021-03-29 | 2021-03-29 | 光コム発生装置 |
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JP6994128B1 true JP6994128B1 (ja) | 2022-02-03 |
JP2022152753A JP2022152753A (ja) | 2022-10-12 |
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US (1) | US20240192365A1 (ja) |
EP (1) | EP4318107A1 (ja) |
JP (1) | JP6994128B1 (ja) |
CN (1) | CN117083562A (ja) |
WO (1) | WO2022209008A1 (ja) |
Cited By (1)
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---|---|---|---|---|
JP7498497B2 (ja) | 2021-12-02 | 2024-06-12 | 株式会社OptoComb | 光コム発生装置及び光コム距離計測装置 |
Citations (3)
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US20090092158A1 (en) * | 2007-06-06 | 2009-04-09 | Hossein Izadpanah | Multi-aperture Three-Dimensional Beamforming |
JP2009244621A (ja) * | 2008-03-31 | 2009-10-22 | Furukawa Electric Co Ltd:The | 同期光信号発生装置、時間的変調装置、同期光信号発生方法及び時間的変調方法 |
JP2020086137A (ja) * | 2018-11-26 | 2020-06-04 | 株式会社Xtia | 光変調器及び光コム発生器 |
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JP2527181B2 (ja) * | 1987-03-31 | 1996-08-21 | 株式会社トプコン | 光距離センサ |
JPH09152482A (ja) * | 1995-12-01 | 1997-06-10 | Olympus Optical Co Ltd | 距離測定装置 |
JP2001343234A (ja) | 2000-06-05 | 2001-12-14 | Nec Eng Ltd | 広範囲レーザ距離計および広範囲距離測定方法 |
GB0025662D0 (en) * | 2000-10-19 | 2000-12-06 | Secr Defence | Frequency synthesiser |
JP5231883B2 (ja) | 2008-07-03 | 2013-07-10 | 株式会社 光コム | 距離計及び距離測定方法並びに光学的三次元形状測定機 |
JP5161938B2 (ja) * | 2010-08-23 | 2013-03-13 | パナソニック株式会社 | 空間情報検出装置 |
JP5736247B2 (ja) * | 2011-06-23 | 2015-06-17 | 株式会社日立製作所 | 距離計測方法および装置 |
JP6019360B2 (ja) * | 2012-02-28 | 2016-11-02 | ネオアーク株式会社 | 光ヘテロダイン距離計 |
WO2014203654A1 (ja) * | 2013-06-17 | 2014-12-24 | 株式会社日立製作所 | 距離測定装置、形状測定装置、加工システム、距離測定方法、形状測定方法および加工方法 |
EP2908168B1 (de) * | 2014-02-14 | 2019-12-04 | Deutsche Telekom AG | Erzeugung von Frequenzkämmen und sinc-förmigen Nyquist-Pulsefolgen großer Bandbreite und abstimmbarer Repetitionsrate |
JP6269213B2 (ja) * | 2014-03-19 | 2018-01-31 | アイシン精機株式会社 | 距離測定装置及び距離測定方法 |
JP6747822B2 (ja) * | 2016-02-23 | 2020-08-26 | 株式会社トプコン | 距離測定装置、距離測定方法および距離測定用プログラム |
JP7152748B2 (ja) | 2018-07-13 | 2022-10-13 | 株式会社Xtia | 距離計及び距離測定方法並びに光学的三次元形状測定機 |
JP6943538B2 (ja) | 2019-09-30 | 2021-10-06 | 本田技研工業株式会社 | 鞍乗型車両 |
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- 2021-12-02 CN CN202180096468.3A patent/CN117083562A/zh active Pending
- 2021-12-02 US US18/553,055 patent/US20240192365A1/en active Pending
- 2021-12-02 WO PCT/JP2021/044296 patent/WO2022209008A1/ja active Application Filing
- 2021-12-02 EP EP21935161.6A patent/EP4318107A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090092158A1 (en) * | 2007-06-06 | 2009-04-09 | Hossein Izadpanah | Multi-aperture Three-Dimensional Beamforming |
JP2009244621A (ja) * | 2008-03-31 | 2009-10-22 | Furukawa Electric Co Ltd:The | 同期光信号発生装置、時間的変調装置、同期光信号発生方法及び時間的変調方法 |
JP2020086137A (ja) * | 2018-11-26 | 2020-06-04 | 株式会社Xtia | 光変調器及び光コム発生器 |
Cited By (1)
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JP7498497B2 (ja) | 2021-12-02 | 2024-06-12 | 株式会社OptoComb | 光コム発生装置及び光コム距離計測装置 |
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WO2022209008A1 (ja) | 2022-10-06 |
US20240192365A1 (en) | 2024-06-13 |
EP4318107A1 (en) | 2024-02-07 |
CN117083562A (zh) | 2023-11-17 |
JP2022152753A (ja) | 2022-10-12 |
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