JP7002407B2 - 波長同調発信源装置 - Google Patents
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- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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- G—PHYSICS
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- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02001—Interferometers characterised by controlling or generating intrinsic radiation properties
- G01B9/02002—Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies
- G01B9/02004—Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies using frequency scans
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- G—PHYSICS
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G—PHYSICS
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
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- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
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- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
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- Microscoopes, Condenser (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Communication System (AREA)
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
そして、本発明は広く光学システムに関し、特に波長同調に用いる光学波長フィルターシステムに関する。
Claims (11)
- 波長同調レーザー装置であって、
共振器内に、スペクトルを有する電磁放射を発生するレーザー共振器と、
前記レーザー共振器内に配置されたレーザー利得媒質と、
前記レーザー共振器内に配置された光学波長掃引フィルターと、を含み、
前記レーザー利得媒質は、共振器電磁放射スペクトルにおける自己周波数シフトダウンを引き起こし、
前記光学波長掃引フィルターは、特定の方向で動作され、
前記レーザー利得媒質によって引き起こされた前記自己周波数シフトダウンと同じ方向に動作する前記光学波長掃引フィルターは、出射電磁放射スペクトルの電力の増加を引き起こす、装置。 - 前記特定の方向は、正の波長掃引方向である、請求項1に記載の装置。
- 出射電磁放射スペクトルの電力は、負の波長掃引方向で動作されるときよりも正の波長掃引方向で動作されるときの方が大きい、請求項2に記載の装置。
- 前記出射電磁放射スペクトルは、100ギガヘルツ未満である瞬間輝線幅を有する、請求項1に記載の装置。
- 前記光学波長掃引フィルターは、前記共振器電磁放射の周波数に基づいて前記共振器電磁放射の少なくとも一部を少なくとも透過または反射するように構成され、前記共振器電磁放射の前記少なくとも一部は、100ギガヘルツ未満であるFWHM(半値全幅)周波数分布を有している、請求項1に記載の装置。
- 前記光学波長掃引フィルターは、多面体構成部を含み、
前記多面体構成部の回転方向、および入射する前記共振器電磁放射の光軸に対する向きは、波長同調の方向に関して波長アップ(正)スキャンとなるように決定される、請求項1に記載の装置。 - さらに、前記多面体構成部に隣接するテレスコープを含む、請求項6に記載の装置。
- さらに、回折格子を含み、
前記テレスコープは、前記光軸に沿って、前記回折格子と前記多面体構成部との間に設けられる、請求項7に記載の装置。 - 前記多面体構成部の回転は、15.7kHzの掃引繰返し速度を提供する、請求項8に記載の装置。
- 前記光学波長掃引フィルターは、多面体ミラー・スキャナー、ガルバノメーターミラー・スキャナー、およびピエゾミラー・スキャナーの少なくとも一つを含む、請求項1に記載の装置。
- 前記レーザー利得媒質は、半導体光増幅器を含む、請求項1に記載の装置。
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47660003P | 2003-06-06 | 2003-06-06 | |
US60/476,600 | 2003-06-06 | ||
US51476903P | 2003-10-27 | 2003-10-27 | |
US60/514,769 | 2003-10-27 |
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JP2016181628A Division JP2016213510A (ja) | 2003-06-06 | 2016-09-16 | 波長同調発信源装置及びその方法 |
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JP2018152604A JP2018152604A (ja) | 2018-09-27 |
JP7002407B2 true JP7002407B2 (ja) | 2022-01-20 |
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JP2006515266A Pending JP2007526620A (ja) | 2003-06-06 | 2004-06-04 | 波長同調発信源装置及びその方法 |
JP2011171749A Expired - Lifetime JP6053263B2 (ja) | 2003-06-06 | 2011-08-05 | 波長同調発信源装置及びその方法 |
JP2016181628A Pending JP2016213510A (ja) | 2003-06-06 | 2016-09-16 | 波長同調発信源装置及びその方法 |
JP2018108256A Expired - Lifetime JP7002407B2 (ja) | 2003-06-06 | 2018-06-06 | 波長同調発信源装置 |
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JP2011171749A Expired - Lifetime JP6053263B2 (ja) | 2003-06-06 | 2011-08-05 | 波長同調発信源装置及びその方法 |
JP2016181628A Pending JP2016213510A (ja) | 2003-06-06 | 2016-09-16 | 波長同調発信源装置及びその方法 |
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US (6) | US7519096B2 (ja) |
EP (14) | EP2030562A3 (ja) |
JP (4) | JP2007526620A (ja) |
KR (5) | KR20130138867A (ja) |
AT (1) | ATE410666T1 (ja) |
AU (1) | AU2004252482B2 (ja) |
CA (1) | CA2527930C (ja) |
DE (1) | DE602004016998D1 (ja) |
ES (1) | ES2310744T3 (ja) |
TW (1) | TWI346428B (ja) |
WO (1) | WO2005001401A2 (ja) |
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DE60141090D1 (de) | 2000-10-30 | 2010-03-04 | Gen Hospital Corp | Optische systeme zur gewebeanalyse |
US9295391B1 (en) | 2000-11-10 | 2016-03-29 | The General Hospital Corporation | Spectrally encoded miniature endoscopic imaging probe |
AT503309B1 (de) | 2001-05-01 | 2011-08-15 | Gen Hospital Corp | Vorrichtung zur bestimmung von atherosklerotischem belag durch messung von optischen gewebeeigenschaften |
US7557929B2 (en) | 2001-12-18 | 2009-07-07 | Massachusetts Institute Of Technology | Systems and methods for phase measurements |
US7355716B2 (en) | 2002-01-24 | 2008-04-08 | The General Hospital Corporation | Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands |
US8054468B2 (en) * | 2003-01-24 | 2011-11-08 | The General Hospital Corporation | Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands |
US7567349B2 (en) | 2003-03-31 | 2009-07-28 | The General Hospital Corporation | Speckle reduction in optical coherence tomography by path length encoded angular compounding |
EP2319404B1 (en) * | 2003-01-24 | 2015-03-11 | The General Hospital Corporation | System and method for identifying tissue low-coherence interferometry |
US7339727B1 (en) * | 2003-01-30 | 2008-03-04 | Northrop Grumman Corporation | Method and system for diffractive beam combining using DOE combiner with passive phase control |
EP2030562A3 (en) | 2003-06-06 | 2009-03-25 | The General Hospital Corporation | Process and apparatus for a wavelength tuning source |
CN103181753B (zh) * | 2003-10-27 | 2016-12-28 | 通用医疗公司 | 用于使用频域干涉测量法进行光学成像的方法和设备 |
US7813644B2 (en) * | 2004-05-10 | 2010-10-12 | Raytheon Company | Optical device with a steerable light path |
EP1754016B1 (en) * | 2004-05-29 | 2016-05-18 | The General Hospital Corporation | Process, system and software arrangement for a chromatic dispersion compensation using reflective layers in optical coherence tomography (oct) imaging |
EP1771755B1 (en) * | 2004-07-02 | 2016-09-21 | The General Hospital Corporation | Endoscopic imaging probe comprising dual clad fibre |
WO2006017837A2 (en) | 2004-08-06 | 2006-02-16 | The General Hospital Corporation | Process, system and software arrangement for determining at least one location in a sample using an optical coherence tomography |
EP2272421A1 (en) | 2004-08-24 | 2011-01-12 | The General Hospital Corporation | Method and apparatus for imaging of vessel segments |
WO2006024014A2 (en) | 2004-08-24 | 2006-03-02 | The General Hospital Corporation | Process, system and software arrangement for measuring a mechanical strain and elastic properties of a sample |
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