JP2009014725A - センサ用に最適化された光共振装置 - Google Patents
センサ用に最適化された光共振装置 Download PDFInfo
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- JP2009014725A JP2009014725A JP2008175142A JP2008175142A JP2009014725A JP 2009014725 A JP2009014725 A JP 2009014725A JP 2008175142 A JP2008175142 A JP 2008175142A JP 2008175142 A JP2008175142 A JP 2008175142A JP 2009014725 A JP2009014725 A JP 2009014725A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 44
- 230000035945 sensitivity Effects 0.000 claims abstract description 9
- 238000001228 spectrum Methods 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000000411 transmission spectrum Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 15
- 238000005457 optimization Methods 0.000 description 4
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
- G01N21/7746—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides the waveguide coupled to a cavity resonator
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12133—Functions
- G02B2006/12138—Sensor
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Abstract
【解決手段】光共振器は、共振器のQファクタを最大化するかわりに共振ピークの勾配および/あるいは鋭さを最大にすることにより、センサとして最適化された性能を得るように構成される。共振ピークのこれらの特性は、本発明にしたがって共振器構造の物理的なパラメータ(例えば、寸法、導波路の間の間隔、リングの直径、材料および関連する屈折率など)を、これらの最適属性に関連するQファクタに関わらず、所望のピーク属性が得られるまで修正することによりコントロールされる。
【選択図】図2
Description
本発明のよりよい理解のために、添付の図、および添付の請求の範囲とにより以下に説明する。なお、これらの図面中の構成要素は必ずしも寸法通りではない。
12 入力光信号経路
14 出力光信号経路
20 試験対象物
22 入力導波路
24 出力導波路
26、28 仮想出力導波路
Claims (9)
- 共振型光センサであって、
波長λで光検知信号を受けるための入力導波路と、
γ(in)として規定される前記入力導波路との間の結合係数を有し、内部に光検知信号を伝播させセンサ近傍の媒体の関数として共振スペクトルを生成するために前記入力導波路の出力に結合された、固定された固有の損失γおよび関連する固有のQファクタQintを示す共振型光装置と、
γ(out)として規定される前記共振型光装置との間の結合係数を有し、共振透過スペクトルを受けるために前記共振型光装置の出力に結合される出力導波路とを含み、最大の勾配および/あるいは最も鋭いピークを有する共振スペクトルを生成するために、前記共振型光センサの一つ以上の可変パラメータセットを調整することにより前記共振型光センサが近傍の媒体の変化を測定する感度について最適化されることを特徴とする共振型光センサ。 - 前記可変パラメータセットが、前記入力導波路の幾何学的形状、前記共振型光装置および前記出力導波路、それらの間の間隔および物理的結合、前記入力導波路の屈折率値、前記共振型光装置、前記出力導波路およびそれらの間の空間を含むことを特徴とする請求項1に記載の共振型光センサ。
- 前記共振型光装置が、単一の共振ピークを示すことを特徴とする請求項1に記載の共振型光センサ。
- 透過スペクトルの最も鋭い単一の共振ピークが、Qファクタ=1/2Qintと関連することを特徴とする請求項5に記載の共振型光センサ。
- 透過スペクトルの最も勾配が急な単一の共振ピークが、Qファクタ=1/3Qintと関連することを特徴とする請求項5に記載の共振型光センサ。
- 反射スペクトルの最も鋭い単一の共振ピークが、Qファクタ=3/4Qintと関連することを特徴とする請求項5に記載の共振型光センサ。
- 反射スペクトルの最も勾配が急な単一の共振ピークが、Qファクタ=2/3Qintと関連することを特徴とする請求項5に記載の共振型光センサ。
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US94805807P | 2007-07-05 | 2007-07-05 | |
US12/154,353 US7684658B2 (en) | 2007-07-05 | 2008-05-22 | Optimized optical resonator device for sensing applications |
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JP2009014725A true JP2009014725A (ja) | 2009-01-22 |
JP2009014725A5 JP2009014725A5 (ja) | 2009-03-05 |
JP4658163B2 JP4658163B2 (ja) | 2011-03-23 |
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US20110194120A1 (en) * | 2009-05-21 | 2011-08-11 | Monash University | Method and device for phase measurement |
US8368899B2 (en) * | 2009-08-18 | 2013-02-05 | Ofs Fitel, Llc | Coiled evanescent optical sensor |
CN101846674B (zh) * | 2010-05-27 | 2013-07-03 | 苏州生物医学工程技术研究所 | 光波导免疫传感器及其检测方法 |
KR20160089689A (ko) * | 2015-01-20 | 2016-07-28 | 삼성전자주식회사 | 초음파 프로브, 및 이를 포함하는 초음파 영상장치, 및 그 제어방법 |
CN111103261B (zh) * | 2020-01-14 | 2022-08-26 | 东南大学 | 一种基于亚波长光栅跑道型微环谐振器折射率传感器 |
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JP2004528530A (ja) * | 2000-11-28 | 2004-09-16 | ローズマウント インコーポレイテッド | 物理的及び材料的な特性を測定するための光センサ |
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US20040023396A1 (en) * | 2001-11-14 | 2004-02-05 | Boyd Robert W. | Ring or disk resonator photonic biosensor and its use |
US7587105B2 (en) * | 2004-09-08 | 2009-09-08 | The Regents Of The University Of Michigan | High frequency ultrasound detection using polymer optical-ring resonator |
US7466410B2 (en) * | 2007-01-26 | 2008-12-16 | Hewlett-Packard Development Company, L.P. | Photonic-based sensors and methods for detecting analytes |
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JP2004528530A (ja) * | 2000-11-28 | 2004-09-16 | ローズマウント インコーポレイテッド | 物理的及び材料的な特性を測定するための光センサ |
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US7684658B2 (en) | 2010-03-23 |
US20090010588A1 (en) | 2009-01-08 |
JP4658163B2 (ja) | 2011-03-23 |
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