JP2001505312A - コヒーレント光時間分域反射率測定方式光送信システム - Google Patents
コヒーレント光時間分域反射率測定方式光送信システムInfo
- Publication number
- JP2001505312A JP2001505312A JP51638199A JP51638199A JP2001505312A JP 2001505312 A JP2001505312 A JP 2001505312A JP 51638199 A JP51638199 A JP 51638199A JP 51638199 A JP51638199 A JP 51638199A JP 2001505312 A JP2001505312 A JP 2001505312A
- Authority
- JP
- Japan
- Prior art keywords
- link
- wavelength
- signal
- modulation
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 82
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 230000001427 coherent effect Effects 0.000 title abstract description 8
- 238000000253 optical time-domain reflectometry Methods 0.000 title abstract description 6
- 238000005259 measurement Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 16
- 230000003595 spectral effect Effects 0.000 claims abstract description 14
- 230000003993 interaction Effects 0.000 claims abstract description 10
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 238000001228 spectrum Methods 0.000 claims description 9
- 230000002238 attenuated effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 19
- 238000011144 upstream manufacturing Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 230000001902 propagating effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9710841A FR2767995B1 (fr) | 1997-09-01 | 1997-09-01 | Systeme de transmission optique a reflectometrie optique temporelle coherente |
| FR97/10841 | 1997-09-01 | ||
| PCT/FR1998/001869 WO1999012287A1 (fr) | 1997-09-01 | 1998-08-31 | Systeme de transmission optique a reflectometrie optique temporelle coherente |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001505312A true JP2001505312A (ja) | 2001-04-17 |
Family
ID=9510633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51638199A Pending JP2001505312A (ja) | 1997-09-01 | 1998-08-31 | コヒーレント光時間分域反射率測定方式光送信システム |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0941587A1 (fr) |
| JP (1) | JP2001505312A (fr) |
| FR (1) | FR2767995B1 (fr) |
| WO (1) | WO1999012287A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7068945B2 (en) | 2003-02-06 | 2006-06-27 | Fujitsu Limited | Optical amplifying and repeating method and optical amplifying and repeating system |
| JP2009103526A (ja) * | 2007-10-22 | 2009-05-14 | Furukawa Electric Co Ltd:The | 光線路故障検出装置および光線路故障検出方法、これに用いる光源装置及び受光装置 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6842586B2 (en) * | 2003-01-23 | 2005-01-11 | Red Sky Systems, Inc. | OTDR arrangement for detecting faults in an optical transmission system employing two pairs of unidirectional optical fibers |
| GB201020827D0 (en) | 2010-12-08 | 2011-01-19 | Fotech Solutions Ltd | Distrubuted optical fibre sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294374B (en) * | 1992-06-10 | 1996-08-28 | Kokusai Denshin Denwa Co Ltd | A supervising loopback circuit and a transmitting and receiving circuit for an optical repeater system |
| JP3055452B2 (ja) * | 1996-01-10 | 2000-06-26 | 日本電気株式会社 | 光伝送路監視方法 |
-
1997
- 1997-09-01 FR FR9710841A patent/FR2767995B1/fr not_active Expired - Fee Related
-
1998
- 1998-08-31 WO PCT/FR1998/001869 patent/WO1999012287A1/fr not_active Application Discontinuation
- 1998-08-31 JP JP51638199A patent/JP2001505312A/ja active Pending
- 1998-08-31 EP EP98942801A patent/EP0941587A1/fr not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7068945B2 (en) | 2003-02-06 | 2006-06-27 | Fujitsu Limited | Optical amplifying and repeating method and optical amplifying and repeating system |
| JP2009103526A (ja) * | 2007-10-22 | 2009-05-14 | Furukawa Electric Co Ltd:The | 光線路故障検出装置および光線路故障検出方法、これに用いる光源装置及び受光装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999012287A1 (fr) | 1999-03-11 |
| FR2767995A1 (fr) | 1999-03-05 |
| FR2767995B1 (fr) | 1999-10-15 |
| EP0941587A1 (fr) | 1999-09-15 |
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