CA2472408A1 - Wavelength monitoring and control system - Google Patents
Wavelength monitoring and control system Download PDFInfo
- Publication number
- CA2472408A1 CA2472408A1 CA002472408A CA2472408A CA2472408A1 CA 2472408 A1 CA2472408 A1 CA 2472408A1 CA 002472408 A CA002472408 A CA 002472408A CA 2472408 A CA2472408 A CA 2472408A CA 2472408 A1 CA2472408 A1 CA 2472408A1
- Authority
- CA
- Canada
- Prior art keywords
- wavelength
- local oscillator
- optical
- periodic
- frequency
- 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.)
- Abandoned
Links
- 238000012544 monitoring process Methods 0.000 title description 4
- 230000003287 optical effect Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 17
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 18
- 230000000737 periodic effect Effects 0.000 claims description 17
- 230000010287 polarization Effects 0.000 claims description 10
- 238000001228 spectrum Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000002999 depolarising effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000002452 interceptive effect Effects 0.000 description 9
- 238000013459 approach Methods 0.000 description 5
- 238000010009 beating Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 101150071746 Pbsn gene Proteins 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/04—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by beating two waves of a same source but of different frequency and measuring the phase shift of the lower frequency obtained
-
- 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
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07957—Monitoring or measuring wavelength
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48257203P | 2003-06-25 | 2003-06-25 | |
| US60/482,572 | 2003-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2472408A1 true CA2472408A1 (en) | 2004-12-25 |
Family
ID=33539351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002472408A Abandoned CA2472408A1 (en) | 2003-06-25 | 2004-06-23 | Wavelength monitoring and control system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20040264981A1 (https=) |
| EP (1) | EP1492255B1 (https=) |
| JP (1) | JP2005017299A (https=) |
| CA (1) | CA2472408A1 (https=) |
| DE (1) | DE602004006468T2 (https=) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4608528B2 (ja) * | 2007-08-24 | 2011-01-12 | アンリツ株式会社 | 光スペクトルモニタ |
| US20110135301A1 (en) * | 2009-12-08 | 2011-06-09 | Vello Systems, Inc. | Wavelocker for Improving Laser Wavelength Accuracy in WDM Networks |
| US8805206B2 (en) * | 2010-09-29 | 2014-08-12 | Ciena Corporation | Single pin coherent receiver |
| JP5699769B2 (ja) * | 2011-04-13 | 2015-04-15 | 富士通株式会社 | 光チャンネルモニタおよび光伝送装置 |
| US9291505B2 (en) * | 2012-12-07 | 2016-03-22 | Baker Hughes Incorporated | Polarization scrambling in interferometer systems |
| CN105890779B (zh) * | 2016-06-07 | 2019-02-26 | 哈尔滨工业大学 | 一种用于波长扫描系统的实时波长标定装置及标定方法 |
| EP3879643A1 (en) | 2020-03-09 | 2021-09-15 | Thorlabs Quantum Electronics, Inc. | Tunable laser assembly and method of control |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856899A (en) * | 1985-12-20 | 1989-08-15 | Yokogawa Electric Corporation | Optical frequency analyzer using a local oscillator heterodyne detection of incident light |
| US5838437A (en) * | 1997-04-09 | 1998-11-17 | Micron Optics, Inc. | Reference system for optical devices including optical scanners and spectrum analyzers |
| KR100295810B1 (ko) * | 1998-06-02 | 2001-10-26 | 서평원 | 파장분할다중방식광전송망채널감시시스템 |
| US6256103B1 (en) * | 2000-02-17 | 2001-07-03 | Agilent Technologies, Inc. | System and method for optical heterodyne detection of an optical signal |
| JP4270718B2 (ja) * | 2000-04-27 | 2009-06-03 | 株式会社アドバンテスト | 基準波長光発生装置 |
| US6614955B1 (en) * | 2000-08-22 | 2003-09-02 | Agilent Technologies, Inc. | Method and apparatus for an extended wavelength range coherent optical spectrum analyzer |
| US6671056B2 (en) * | 2001-01-11 | 2003-12-30 | Agilent Technologies, Inc | Method and system for optical spectrum analysis with a depolarized local oscillator signal |
| US6985234B2 (en) * | 2001-01-30 | 2006-01-10 | Thorlabs, Inc. | Swept wavelength meter |
| US6870629B1 (en) * | 2001-10-29 | 2005-03-22 | Precision Photonics Corporation | Optical frequency sweep control and readout by using a phase lock |
-
2004
- 2004-06-22 US US10/873,324 patent/US20040264981A1/en not_active Abandoned
- 2004-06-23 CA CA002472408A patent/CA2472408A1/en not_active Abandoned
- 2004-06-24 DE DE602004006468T patent/DE602004006468T2/de not_active Expired - Lifetime
- 2004-06-24 EP EP04253780A patent/EP1492255B1/en not_active Expired - Lifetime
- 2004-06-25 JP JP2004187532A patent/JP2005017299A/ja not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005017299A (ja) | 2005-01-20 |
| DE602004006468T2 (de) | 2008-01-17 |
| DE602004006468D1 (de) | 2007-06-28 |
| EP1492255A3 (en) | 2005-08-31 |
| EP1492255A2 (en) | 2004-12-29 |
| US20040264981A1 (en) | 2004-12-30 |
| EP1492255B1 (en) | 2007-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |