GB0008854D0 - Optical amplifier - Google Patents
Optical amplifierInfo
- Publication number
- GB0008854D0 GB0008854D0 GBGB0008854.2A GB0008854A GB0008854D0 GB 0008854 D0 GB0008854 D0 GB 0008854D0 GB 0008854 A GB0008854 A GB 0008854A GB 0008854 D0 GB0008854 D0 GB 0008854D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- optical amplifier
- amplifier
- optical
- 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
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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
- H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
- H01S3/06758—Tandem amplifiers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970060016A KR100424772B1 (en) | 1997-11-14 | 1997-11-14 | Optical amplifier system |
GB9824915A GB2331420B (en) | 1997-11-14 | 1998-11-16 | Optical amplifier |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0008854D0 true GB0008854D0 (en) | 2000-05-31 |
GB2351862A GB2351862A (en) | 2001-01-10 |
GB2351862B GB2351862B (en) | 2001-02-21 |
Family
ID=26314668
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0008851A Expired - Fee Related GB2351861B (en) | 1997-11-14 | 1998-11-16 | Optical amplifier |
GB0008854A Expired - Fee Related GB2351862B (en) | 1997-11-14 | 1998-11-16 | Optical amplifier |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0008851A Expired - Fee Related GB2351861B (en) | 1997-11-14 | 1998-11-16 | Optical amplifier |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2351861B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1324829C (en) | 2001-08-03 | 2007-07-04 | 华为技术有限公司 | Method for implementing power equalization of dense wavelength divison multiplex system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2161612B (en) * | 1984-07-11 | 1988-02-03 | Stc Plc | Optical fibre transmission systems |
JP3250206B2 (en) * | 1994-02-14 | 2002-01-28 | 住友電気工業株式会社 | Optical fiber amplifier |
GB9411061D0 (en) * | 1994-06-02 | 1994-07-20 | Northern Telecom Ltd | Optical waveguide amplifiers |
GB2293936B (en) * | 1994-10-05 | 1996-08-28 | Northern Telecom Ltd | Optical amplifiers |
WO1997034379A1 (en) * | 1996-03-13 | 1997-09-18 | Hitachi, Ltd. | Optical communication system |
-
1998
- 1998-11-16 GB GB0008851A patent/GB2351861B/en not_active Expired - Fee Related
- 1998-11-16 GB GB0008854A patent/GB2351862B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2351862A (en) | 2001-01-10 |
GB2351861B (en) | 2001-02-21 |
GB2351862B (en) | 2001-02-21 |
GB2351861A (en) | 2001-01-10 |
GB0008851D0 (en) | 2000-05-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20061116 |