JP2010096761A - 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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- JP2010096761A JP2010096761A JP2009236312A JP2009236312A JP2010096761A JP 2010096761 A JP2010096761 A JP 2010096761A JP 2009236312 A JP2009236312 A JP 2009236312A JP 2009236312 A JP2009236312 A JP 2009236312A JP 2010096761 A JP2010096761 A JP 2010096761A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 41
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
【解決手段】光ファイバジャイロスコープを構成する方法は、第1の光ファイバ210及び第2の光ファイバ220を外面を有する干渉計200の光路に光学的に結合すること、第1の光ファイバ210及び第2の光ファイバ220の少なくとも一部を外面に結合すること、並びに第1の光ファイバ210及び第2の光ファイバ220を集積光学チップ(IOC)の光路に光学的に結合することを含む。
【選択図】図2
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(210)及び第2の光ファイバ(220)を外面を有する干渉計(200)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(210)及び前記第2の光ファイバ(220)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(210)及び前記第2の光ファイバ(220)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(210)及び前記第2の光ファイバ(220)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(210)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(220)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(210)の第2の部分及び前記第2の光ファイバ(220)の第2の部分を、該第1の光ファイバ(210)の第2の部分及び該第2の光ファイバ(220)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
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(200)と、
光路を有する集積光学チップ(IOC)と、
第1の光ファイバ(210)及び第2の光ファイバ(220)であって、該第1の光ファイバ(210)及び該第2の光ファイバ(220)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(210)及び該第2の光ファイバ(220)は、前記干渉計(200)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(210)及び第2の光ファイバ(220)と、
を備える、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 true JP2010096761A (ja) | 2010-04-30 |
JP5424805B2 JP5424805B2 (ja) | 2014-02-26 |
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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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Also Published As
Publication number | Publication date |
---|---|
EP2177876A2 (en) | 2010-04-21 |
JP5424805B2 (ja) | 2014-02-26 |
US20100092126A1 (en) | 2010-04-15 |
EP2177876A3 (en) | 2014-04-09 |
US7684659B1 (en) | 2010-03-23 |
EP2177876B1 (en) | 2015-12-02 |
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