JP5424805B2 - 光ファイバジャイロスコープのための2本巻き光ファイバ収容 - Google Patents
光ファイバジャイロスコープのための2本巻き光ファイバ収容 Download PDFInfo
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- JP5424805B2 JP5424805B2 JP2009236312A JP2009236312A JP5424805B2 JP 5424805 B2 JP5424805 B2 JP 5424805B2 JP 2009236312 A JP2009236312 A JP 2009236312A JP 2009236312 A JP2009236312 A JP 2009236312A JP 5424805 B2 JP5424805 B2 JP 5424805B2
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- Prior art keywords
- fiber
- optical fiber
- optic
- optical
- beauty
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
- G01C19/721—Details
- G01C19/722—Details of the mechanical construction
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
2本巻き(bifilar、バイファイラ)引き込みリードルーティング方法の一実施例は、時間と共に変化する温度勾配下での性能を向上させ、これらの引き込みリードのシュッペ効果を低減する。
ファイバをそのような2本巻き対の方法でルーティングすることにより、センシングループにおいて等距離にあり逆向きの点が、互いに物理的に隣接し、環境の変化に対して同じ作用を受ける。
赤色ファイバ210と青色ファイバ220とが互いに交差するか又は他の形で重なるのは、図2の例に示すような巻線250から「Uターン」構成260への移行点のみであることに、さらに留意すべきである。
Claims (3)
- 第1の光ファイバ及び第2の光ファイバを外面を有する干渉計の光路に光学的に結合するステップと、
前記第1の光ファイバ及び前記第2の光ファイバの少なくとも一部を前記外面に結合するステップと、
前記第1の光ファイバ及び前記第2の光ファイバを集積光学チップ(IOC)の光路に光学的に結合するステップと
を含み、前記第1の光ファイバ及び前記第2の光ファイバの少なくとも一部を前記外面に結合する前記ステップは、
前記第1の光ファイバの第1の部分を前記外面に対して第1の方向に配向するステップと、
前記第2の光ファイバの第1の部分を前記外面に対して前記第1の方向とは異なる第2の方向に配向するステップと、
前記第1の光ファイバの第2の部分及び前記第2の光ファイバの第2の部分を、該第1の光ファイバの第2の部分及び該第2の光ファイバの第2の部分が互いに向かって集束するように配向するステップと、
前記第1の光ファイバの第3の部分及び前記第2の光ファイバの第3の部分のそれぞれの複数のターンを前記外面の周りに同じ方向に巻き付けるステップと、
前記第1の光ファイバの第4の部分及び前記第2の光ファイバの第4の部分を、前記第3の部分のそれぞれの方向とは反対の方向に配向されるようにループにするステップと、
前記第1の光ファイバの第5の部分及び前記第2の光ファイバの第5の部分のそれぞれを前記外面に沿って実質的に正弦波状の構成で配向するステップと
を含む、光ファイバジャイロスコープを構成する方法。 - 前記第1の光ファイバの第4の部分及び前記第2の光ファイバの第4の部分をループにするステップは、前記第3の部分の前記複数のターンの各々について単一の交差点が存在するように、前記第4の部分のそれぞれを、前記複数のターンの頂点の上にループさせるステップを含む、請求項1に記載の方法。
- 光ファイバジャイロスコープであって、
光路及び外面を有する干渉計と、
光路を有する集積光学チップ(IOC)と、
第1の光ファイバ及び第2の光ファイバであって、該第1の光ファイバ及び該第2の光ファイバの少なくとも一部が前記外面に結合され、該第1の光ファイバ及び該第2の光ファイバは、前記干渉計の前記光路及び前記IOCの前記光路に光学的に結合される、第1の光ファイバ及び第2の光ファイバと、
を備え、前記第1の光ファイバ及び前記第2の光ファイバは、
前記第1の光ファイバの第1の部分が前記外面に対して第1の方向に配向され、
前記第2の光ファイバの第1の部分が前記外面に対して前記第1の方向とは異なる第2の方向に配向され、
前記第1の光ファイバの第2の部分及び前記第2の光ファイバの第2の部分が、該第1の光ファイバの第2の部分及び該第2の光ファイバの第2の部分が互いに向かって集束するように配向され、
前記第1の光ファイバの第3の部分及び前記第2の光ファイバの第3の部分のそれぞれの複数のターンが前記外面の周りに同じ方向に巻き付けられ、
前記第1の光ファイバの第4の部分及び前記第2の光ファイバの第4の部分が、前記第3の部分のそれぞれの方向とは反対の方向に配向されるようにループにされ、且つ
前記第1の光ファイバの第5の部分及び前記第2の光ファイバの第5の部分が前記外面に沿って実質的に正弦波状の構成で配向される
ように前記外面に結合される、光ファイバジャイロスコープ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/251,060 US7684659B1 (en) | 2008-10-14 | 2008-10-14 | Bifilar optical fiber stowage for fiber-optic gyroscope |
US12/251,060 | 2008-10-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010096761A JP2010096761A (ja) | 2010-04-30 |
JP5424805B2 true JP5424805B2 (ja) | 2014-02-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009236312A Expired - Fee Related JP5424805B2 (ja) | 2008-10-14 | 2009-10-13 | 光ファイバジャイロスコープのための2本巻き光ファイバ収容 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7684659B1 (ja) |
EP (1) | EP2177876B1 (ja) |
JP (1) | JP5424805B2 (ja) |
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-
2009
- 2009-10-08 EP EP09172560.6A patent/EP2177876B1/en not_active Not-in-force
- 2009-10-13 JP JP2009236312A patent/JP5424805B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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US7684659B1 (en) | 2010-03-23 |
EP2177876A3 (en) | 2014-04-09 |
EP2177876B1 (en) | 2015-12-02 |
EP2177876A2 (en) | 2010-04-21 |
JP2010096761A (ja) | 2010-04-30 |
US20100092126A1 (en) | 2010-04-15 |
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