JP6215126B2 - 少なくとも1つの照射源を有する側面照射光ファイバ - Google Patents
少なくとも1つの照射源を有する側面照射光ファイバ Download PDFInfo
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- JP6215126B2 JP6215126B2 JP2014087665A JP2014087665A JP6215126B2 JP 6215126 B2 JP6215126 B2 JP 6215126B2 JP 2014087665 A JP2014087665 A JP 2014087665A JP 2014087665 A JP2014087665 A JP 2014087665A JP 6215126 B2 JP6215126 B2 JP 6215126B2
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Optical Integrated Circuits (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Optical Transform (AREA)
Description
本出願は、2009年1月30日に出願された米国特許仮出願第61/148,564号の利益を主張する。
該当なし
マイクロフィッシュ付録への参照
該当なし
本発明は、一般に分光学に基づく光ファイバセンサに関する。特に、本発明は、散乱、吸収、比色、螢光およびりん光に基づくセンサに関する。
a.ファイバセンサにおよそ5mm以下の高空間分解能を追加的に提供することができ、
正確な検出位置をピンポイントで示すことが可能な、安価なプロービング光源;
b.自動化手段によって作製することができる安価で入手が容易な市販デバイスを使用
した、費用対効果の高い光ファイバセンサ・システム;
c.電磁スペクトルの赤外、可視、および紫外領域にわたって使用することができる可
撓性デバイス;
d.位置合わせが容易で、曲げおよびアンビエント光のような外部からの干渉による影
響を受けない、頑丈なセンシング・デバイス;
e.様々な測定対象をモニターするように適合することができる、包括的な設計が必要
とされる;
f.容易に検出されうる強い信号を生成することができる、蛍光ベースおよび吸収ベー
スのファイバのための強力でなおかつ費用対効果の高いプロービング光源;
g.進化する技術を用いて容易にアップデートすることをできる、モジュール方式のセ
ンシング・システム設計;および
h.所定の測定対象を検出するためにファイバの表面上に固定された化学指示薬を必要
としないセンシング・システム。
ある実施形態において、照射用ファイバのコアは、末端のうちの一方に向かって広がるテーパードコアであり、該テーパードコアに結合されて該末端に向かって伝搬する照射光の量を増加させる。
ある実施形態において、照射用ファイバのコアは、末端の両方に向かって広がるテーパードコアであり、該テーパードコアに結合されて末端の両方に伝搬する照射光の量を増加させる。
92a:特定のセンシングポイント
93:検体、測定対象媒体
96:元の光ファイバ
96a:市販の光ファイバ
98:センシングファイバ、感受性光ファイバ
98a:テーパードコアを持つ光ファイバセンサ
99:反応性フィルム、感受性フィルム
100:プロービング光源
100a:LED
100b:白色光源
101:保護ジャケット
101a:プラスチックジャケット
104:光学的信号
104a:蛍光
106:光ファイバコア、コア
106a:ガラスコア
107:テーパードコア
108:検出器
108a:光検出器
108b:シリコン光検出器
108c:分光計
109:光を通さない筺体
110:信号プロセッサ
111:読み出し
112:光検出器ケーブル
114:電源
116:光ファイバクラッド
116a:プラスチッククラッド
118:光ファイバの第2の末端
120:光ファイバの第1の末端
122:反射体
124:後方伝搬モード
128:テーパードコアとクラッドとの間の界面
132:光ファイバコネクタ
134:光ファイバ支持体
138:LEDのリニアアレイ
144:照射用光ファイバ
148:遠位の反射端面
150:照射光
152:ファイバの近位端
154:いくつかの長周期格子を持つ照射用光ファイバ
156:長周期格子
157:埋め込み型誘電体ミラーを持つ照射用ファイバ
158:照射用光ファイバの束縛モードコア
160:モノクロメータ
162:放射モード
164:光検出器のオス・コネクタ
168:読み出しユニットのメス・コネクタ
170:ディスプレイ
172:容器
174:液体
176:流体界面
178:空気
180:埋め込み型誘電体ミラー
Claims (9)
- センシングファイバ(98)と、少なくとも1つのプロービング光源(100)とを備えた光ファイバセンシングシステムにおいて、前記センシングファイバ(98)のセンシングポイント(92)を照射するための照射用ファイバ(144)であって、
前記照射用ファイバ(144)は、第1および第2の末端と、コアと、該末端の間の少なくとも1つの、コアが露出した露出領域とを持ち、
前記プロービング光源(100)から生成されたプロービング光は、前記露出領域を側面照射し、照射光(150)として前記コア中へ実質的に結合され、
前記照射用ファイバ(144)において伝搬された前記照射光(150)は、前記照射用ファイバ(144)の外部へ放射されて前記センシングファイバ(98)の前記センシングポイント(92)を照射する、照射用ファイバ。 - 前記コアは、前記末端のうちの一方に向かって広がるテーパードコアであり、該末端に向かって伝搬する前記結合された照射光(150)の量を増加させる、請求項1に記載の照射用ファイバ。
- 前記コアは、前記末端の両方に向かって広がるテーパードコアであり、該末端の両方に伝搬する前記結合された照射光(150)の量を増加させる、請求項1に記載の照射用ファイバ。
- 前記照射用ファイバ(144)は、その長さに沿って少なくとも1つの誘電体ミラー(180)および少なくとも1つの長周期格子のうちの1つを持ち、前記それぞれの誘電体ミラーおよび長周期格子は、前記照射用ファイバ(144)の前記外部へ、特定の波長範囲内における前記プロービング光源による前記照射光(150)の方向を変えることが可能である、請求項1に記載の照射用ファイバ。
- 前記照射用ファイバ(144)は、その長さに沿って少なくとも1つの誘電体ミラー(180)および少なくとも1つの長周期格子のうちの1つをさらに備え、前記それぞれの誘電体ミラーおよび長周期格子は、前記照射用ファイバ(144)の前記外部へ、特定の波長範囲内における前記プロービング光源による前記照射光(150)の方向を変えることが可能である、請求項2に記載の照射用ファイバ。
- 前記照射用ファイバ(144)は、前記照射光(150)の伝搬のそれぞれの方向に沿って少なくとも1つの誘電体ミラー(180)および少なくとも1つの長周期格子のうちの1つをさらに備え、前記それぞれの誘電体ミラーおよび長周期格子は、前記照射用ファイバ(144)の前記外部へ、特定の波長範囲内における前記プロービング光源による前記照射光(150)の方向を変えることが可能である、請求項3に記載の照射用ファイバ。
- 前記照射用ファイバ(144)は光カプラーであり、
前記照射光(150)は、前記コアとの結合位置から前記照射用ファイバ(144)の末端に伝搬する、請求項1に記載の照射用ファイバ。 - センシングポイント(92)を有するセンシングファイバ(98)と、
前記センシングファイバ(98)の前記センシングポイント(92)を照射するための、請求項1〜6のいずれか一項に記載の照射用ファイバ(144)と、
前記照射用ファイバ(144)の前記露出領域を側面照射するプロービング光を生成する少なくとも1つのプロービング光源(100)と
を備えた光ファイバセンシングシステム。 - 前記照射用ファイバ(144)の外部へ放射された前記照射光(150)は、前記センシングファイバ(98)のセンシングポイント(92)に位置するサンプルを照射する、請求項8に記載の光ファイバセンシングシステム。
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