WO2009001435A1 - Optical power monitor - Google Patents
Optical power monitor Download PDFInfo
- Publication number
- WO2009001435A1 WO2009001435A1 PCT/JP2007/062764 JP2007062764W WO2009001435A1 WO 2009001435 A1 WO2009001435 A1 WO 2009001435A1 JP 2007062764 W JP2007062764 W JP 2007062764W WO 2009001435 A1 WO2009001435 A1 WO 2009001435A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- optical
- power monitor
- light
- core
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 7
- 239000013307 optical fiber Substances 0.000 abstract 10
- 238000011144 upstream manufacturing Methods 0.000 abstract 5
- 230000004927 fusion Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
- G02B6/4203—Optical features
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
An optical power monitor which ensures reduced size even in a multichannel configuration and reduced light loss. The optical power monitor consists of two pieces of optical fiber at upstream and downstream sides, wherein each optical axis of those optical fiber cores is aligned, and core end faces are fused in opposition to each other at a fusion section. A diameter or a long diameter of a core of the optical fiber at upstream side is greater than a diameter of a core of the optical fiber at downstream side. At the fusion section, a part of a core end face of the optical fiber at upstream side is projecting from a core end face of the optical fiber at downstream side. On a clad layer of the optical fiber at downstream side, a groove is formed in opposition to a projecting portion on the end of the optical fiber at upstream side, and the light which is reflected or transmitted on the fusion section-side surface of the groove is measured by an optical diode. The third order or the fourth order enhanced light of the light which leaks from the core end face of the optical fiber at upstream side into the clad layer of the optical fiber at downstream side is detected by the optical diode. Such a method allows to provide the optical power monitor which ensures reduced size even in a multichannel configuration and reduced light propagation loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/062764 WO2009001435A1 (en) | 2007-06-26 | 2007-06-26 | Optical power monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/062764 WO2009001435A1 (en) | 2007-06-26 | 2007-06-26 | Optical power monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009001435A1 true WO2009001435A1 (en) | 2008-12-31 |
Family
ID=40185269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/062764 WO2009001435A1 (en) | 2007-06-26 | 2007-06-26 | Optical power monitor |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009001435A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3503315A1 (en) * | 2017-12-20 | 2019-06-26 | The Boeing Company | Remote optical amplifiers powered by scattered light |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61281206A (en) * | 1985-06-03 | 1986-12-11 | アメリカン テレフオン アンド テレグラフ カムパニ− | Able lightwave guide coupling apparatus |
| JPH05264344A (en) * | 1992-03-17 | 1993-10-12 | Fujitsu Ltd | Method of monitoring input / output optical power of optical amplifier |
| JPH09145928A (en) * | 1995-11-22 | 1997-06-06 | Matsushita Electric Ind Co Ltd | Optical attenuator |
| JPH10268153A (en) * | 1997-03-26 | 1998-10-09 | Sumitomo Electric Ind Ltd | Optical fiber type fixed attenuator and manufacturing method thereof |
| JP2004505293A (en) * | 2000-07-25 | 2004-02-19 | オプテイカル・エア・データ・システムズ，エルピー | Optical fiber system |
| US20050074208A1 (en) * | 2001-09-28 | 2005-04-07 | Rodney Badcock | Monitor for an optical fibre and multi-guide optical fibre circuits and methods of making them |
| JP2005148180A (en) * | 2003-11-12 | 2005-06-09 | Sun Tec Kk | Optical power monitor, method of manufacturing same and analyzer |
-
2007
- 2007-06-26 WO PCT/JP2007/062764 patent/WO2009001435A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61281206A (en) * | 1985-06-03 | 1986-12-11 | アメリカン テレフオン アンド テレグラフ カムパニ− | Able lightwave guide coupling apparatus |
| JPH05264344A (en) * | 1992-03-17 | 1993-10-12 | Fujitsu Ltd | Method of monitoring input / output optical power of optical amplifier |
| JPH09145928A (en) * | 1995-11-22 | 1997-06-06 | Matsushita Electric Ind Co Ltd | Optical attenuator |
| JPH10268153A (en) * | 1997-03-26 | 1998-10-09 | Sumitomo Electric Ind Ltd | Optical fiber type fixed attenuator and manufacturing method thereof |
| JP2004505293A (en) * | 2000-07-25 | 2004-02-19 | オプテイカル・エア・データ・システムズ，エルピー | Optical fiber system |
| US20050074208A1 (en) * | 2001-09-28 | 2005-04-07 | Rodney Badcock | Monitor for an optical fibre and multi-guide optical fibre circuits and methods of making them |
| JP2005148180A (en) * | 2003-11-12 | 2005-06-09 | Sun Tec Kk | Optical power monitor, method of manufacturing same and analyzer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3503315A1 (en) * | 2017-12-20 | 2019-06-26 | The Boeing Company | Remote optical amplifiers powered by scattered light |
| CN109950780A (en) * | 2017-12-20 | 2019-06-28 | 波音公司 | By the remote optical amplifier of scattering optical functions |
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