CN1199867A - 光调制器的操作 - Google Patents
光调制器的操作 Download PDFInfo
- Publication number
- CN1199867A CN1199867A CN98104158A CN98104158A CN1199867A CN 1199867 A CN1199867 A CN 1199867A CN 98104158 A CN98104158 A CN 98104158A CN 98104158 A CN98104158 A CN 98104158A CN 1199867 A CN1199867 A CN 1199867A
- Authority
- CN
- China
- Prior art keywords
- voltage
- modulator
- segment
- bias voltage
- bias
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
- G02F1/0123—Circuits for the control or stabilisation of the bias voltage, e.g. automatic bias control [ABC] feedback loops
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
- H04B10/50575—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulator DC bias
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9700440.2 | 1997-01-10 | ||
GBGB9700440.2A GB9700440D0 (en) | 1997-01-10 | 1997-01-10 | Operation of optical modulators |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1199867A true CN1199867A (zh) | 1998-11-25 |
CN1132043C CN1132043C (zh) | 2003-12-24 |
Family
ID=10805788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98104158A Expired - Fee Related CN1132043C (zh) | 1997-01-10 | 1998-01-10 | 光调制器的操作 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6198560B1 (zh) |
EP (1) | EP0857994B1 (zh) |
JP (2) | JP3931287B2 (zh) |
CN (1) | CN1132043C (zh) |
AU (1) | AU722282B2 (zh) |
DE (1) | DE69839460D1 (zh) |
GB (2) | GB9700440D0 (zh) |
NO (1) | NO980078L (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2943802B1 (ja) * | 1998-08-07 | 1999-08-30 | 日本電気株式会社 | 可変波長フィルタ装置及び可変波長フィルタの制御方法 |
JP3881270B2 (ja) * | 2002-03-26 | 2007-02-14 | 富士通株式会社 | 光変調器の駆動制御装置および駆動制御方法 |
CN1306719C (zh) * | 2003-06-05 | 2007-03-21 | 中兴通讯股份有限公司 | 一种用于sdh传输系统线路衰减补偿的自适应均衡装置 |
JP2005148329A (ja) * | 2003-11-14 | 2005-06-09 | Fujitsu Ltd | 光変調装置 |
KR100701101B1 (ko) | 2004-12-20 | 2007-03-28 | 한국전자통신연구원 | 광 간섭계 제어 장치 및 그 방법 |
CN110441034A (zh) * | 2019-08-24 | 2019-11-12 | 天津大学青岛海洋技术研究院 | 基于马赫曾德干涉仪的光学器件衰减特性测试装置及方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3708797A (en) * | 1971-09-24 | 1973-01-02 | Columbia Broadcasting Syst Inc | Multi-channel laser recording system |
CA2037351C (en) * | 1990-03-01 | 1994-10-25 | Naoki Kuwata | Optical transmitter |
JP2848942B2 (ja) * | 1990-10-02 | 1999-01-20 | 富士通株式会社 | 光送信装置 |
US5003624A (en) * | 1990-03-29 | 1991-03-26 | Hughes Aircraft Company | Automatic bias controller for electro-optic modulator |
US5383046A (en) * | 1992-05-29 | 1995-01-17 | Fujitsu Limited | Supervisory and control signal transmitting system for use in optically amplifying repeaters system |
JP2518138B2 (ja) * | 1993-06-25 | 1996-07-24 | 日本電気株式会社 | 光変調装置 |
JPH0897774A (ja) * | 1994-09-29 | 1996-04-12 | Fujitsu Ltd | 自己監視機能付き光端局装置 |
JP3376144B2 (ja) * | 1994-12-28 | 2003-02-10 | 日本電気株式会社 | 光ネットワーク装置及び光伝送方式 |
JPH08213965A (ja) * | 1995-02-02 | 1996-08-20 | Fujitsu Ltd | Sdhネットワークにおける無線回線の救済方法及び無線装置 |
-
1997
- 1997-01-10 GB GBGB9700440.2A patent/GB9700440D0/en active Pending
- 1997-12-30 AU AU49316/97A patent/AU722282B2/en not_active Ceased
-
1998
- 1998-01-06 EP EP98300039A patent/EP0857994B1/en not_active Expired - Lifetime
- 1998-01-06 GB GB9800112A patent/GB2321115B/en not_active Expired - Fee Related
- 1998-01-06 DE DE69839460T patent/DE69839460D1/de not_active Expired - Lifetime
- 1998-01-07 US US09/003,893 patent/US6198560B1/en not_active Expired - Lifetime
- 1998-01-08 NO NO980078A patent/NO980078L/no not_active Application Discontinuation
- 1998-01-09 JP JP01507598A patent/JP3931287B2/ja not_active Expired - Fee Related
- 1998-01-10 CN CN98104158A patent/CN1132043C/zh not_active Expired - Fee Related
-
2006
- 2006-12-25 JP JP2006347247A patent/JP2007086810A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JP3931287B2 (ja) | 2007-06-13 |
EP0857994A3 (en) | 1998-12-23 |
JP2007086810A (ja) | 2007-04-05 |
CN1132043C (zh) | 2003-12-24 |
AU722282B2 (en) | 2000-07-27 |
GB2321115B (en) | 1999-10-06 |
NO980078D0 (no) | 1998-01-08 |
EP0857994B1 (en) | 2008-05-14 |
AU4931697A (en) | 1998-07-16 |
GB9800112D0 (en) | 1998-03-04 |
JPH10253933A (ja) | 1998-09-25 |
GB2321115A (en) | 1998-07-15 |
US6198560B1 (en) | 2001-03-06 |
NO980078L (no) | 1998-07-13 |
GB9700440D0 (en) | 1997-02-26 |
EP0857994A2 (en) | 1998-08-12 |
DE69839460D1 (de) | 2008-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MARCONI UK INTELLECTUAL PROP Free format text: FORMER OWNER: MARCONI COMMUNICATIONS LTD. Effective date: 20031224 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20031224 Address after: England Patentee after: MARCONI UK INTELLECTUAL PROPERTY Ltd. Address before: England Patentee before: MARCONI COMMUNICATIONS S.P.A. |
|
ASS | Succession or assignment of patent right |
Owner name: L.M. ERICSSON CO., LTD. Free format text: FORMER OWNER: M(DGP1) CO., LTD. Effective date: 20070202 Owner name: M(DGP1) CO., LTD. Free format text: FORMER OWNER: MARCONI UK INTELLECTUAL PROP Effective date: 20070202 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20070202 Address after: Stockholm, Sweden Patentee after: ERICSSON AB Address before: Coventry, United Kingdom Patentee before: M (DGP1) Ltd. Effective date of registration: 20070202 Address after: Coventry, United Kingdom Patentee after: M (DGP1) Ltd. Address before: Coventry, United Kingdom Patentee before: MARCONI UK INTELLECTUAL PROPERTY Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031224 Termination date: 20160110 |
|
CF01 | Termination of patent right due to non-payment of annual fee |