GB2335074A - Optical amplifier and light source - Google Patents
Optical amplifier and light sourceInfo
- Publication number
- GB2335074A GB2335074A GB9912603A GB9912603A GB2335074A GB 2335074 A GB2335074 A GB 2335074A GB 9912603 A GB9912603 A GB 9912603A GB 9912603 A GB9912603 A GB 9912603A GB 2335074 A GB2335074 A GB 2335074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disclose
- light
- fibre
- cladding
- well
- 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
- 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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06729—Peculiar transverse fibre profile
-
- 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
- H01S2301/00—Functional characteristics
- H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof
-
- 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
-
- 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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08018—Mode suppression
- H01S3/0804—Transverse or lateral modes
- H01S3/08045—Single-mode emission
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
- H01S3/094007—Cladding pumping, i.e. pump light propagating in a clad surrounding the active core
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
We disclose single- or few-moded waveguiding cladding-pumped lasers, superfluorescent sources, and amplifiers, as well as lasers, including those for high-energy pulses, in which the interaction between the waveguided light and a gain medium is substantially reduced. This leads to decreased losses of guided desired light as well as to decreased losses through emission of undesired light, compared to devices of the prior art. Furthermore, also cross-talk and inter-symbol interference in semiconductor amplifiers can be reduced. We also disclose devices with a predetermined saturation power. As a preferred embodiment of the invention, we disclose a single (transverse) mode optical fibre laser or amplifier in which the active medium (providing gain or saturable absorption) is of the fibre's cross section where the intensity of the signal light is substantially reduced compared to its peak value. The fibre may be cladding-pumped.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9912603A GB2335074B (en) | 1996-12-04 | 1997-12-04 | Optical Amplifier |
GB0122822A GB2366447B (en) | 1996-12-04 | 1997-12-04 | Apparatus for Amplifying a Signal Beam having a Normalised Intensity Distribution |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9625231.7A GB9625231D0 (en) | 1996-12-04 | 1996-12-04 | Optical amplifiers & lasers |
GB9912603A GB2335074B (en) | 1996-12-04 | 1997-12-04 | Optical Amplifier |
PCT/GB1997/003353 WO1998025326A1 (en) | 1996-12-04 | 1997-12-04 | Optical amplifier and light source |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9912603D0 GB9912603D0 (en) | 1999-07-28 |
GB2335074A true GB2335074A (en) | 1999-09-08 |
GB2335074B GB2335074B (en) | 2002-02-13 |
Family
ID=26310549
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0122822A Expired - Lifetime GB2366447B (en) | 1996-12-04 | 1997-12-04 | Apparatus for Amplifying a Signal Beam having a Normalised Intensity Distribution |
GB9912603A Expired - Lifetime GB2335074B (en) | 1996-12-04 | 1997-12-04 | Optical Amplifier |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0122822A Expired - Lifetime GB2366447B (en) | 1996-12-04 | 1997-12-04 | Apparatus for Amplifying a Signal Beam having a Normalised Intensity Distribution |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2366447B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7161966B2 (en) | 2003-01-24 | 2007-01-09 | Trumpf, Inc. | Side-pumped fiber laser |
US7542488B2 (en) | 2003-01-24 | 2009-06-02 | Trumpf, Inc. | Fiber laser |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7983312B2 (en) | 2007-08-09 | 2011-07-19 | Raytheon Company | Method and apparatus for generation and amplification of light in a semi-guiding high aspect ratio core fiber |
ATE552632T1 (en) * | 2008-11-17 | 2012-04-15 | Raytheon Co | METHOD AND APPARATUS FOR GENERATING AND AMPLIFYING LIGHT IN A SEMI-CONDUCTING FIBER HAVING A HIGH ASPECT RATIO CORE |
FR2952243B1 (en) | 2009-11-03 | 2012-05-11 | Univ Bordeaux 1 | OPTICAL SOURCE USING A DOPED FIBER, FIBER FOR SUCH AN OPTICAL SOURCE AND METHOD FOR MANUFACTURING SUCH A FIBER |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0442553A1 (en) * | 1990-02-12 | 1991-08-21 | PIRELLI CAVI S.p.A. | Optical amplifier having a single-mode curved active fibre |
EP0519648A2 (en) * | 1991-06-19 | 1992-12-23 | AT&T Corp. | Gain switchable optical fiber amplifier |
EP0527265A1 (en) * | 1991-08-12 | 1993-02-17 | Corning Incorporated | Fiber amplifier having modified gain spectrum |
US5469292A (en) * | 1991-07-19 | 1995-11-21 | Lycom A/S | Method of amplifying an optical signal, an optical amplifier for performing the method, and use of such an optical amplifier as a source of light |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3456211A (en) * | 1966-06-16 | 1969-07-15 | American Optical Corp | Fiber laser structures and the like |
US5155621A (en) * | 1990-07-31 | 1992-10-13 | Fujitsu Limited | Optical fiber amplifier |
JP3556026B2 (en) * | 1995-10-30 | 2004-08-18 | 富士通株式会社 | Multi-wavelength optical amplifier that amplifies multiple wavelength signals at once |
-
1997
- 1997-12-04 GB GB0122822A patent/GB2366447B/en not_active Expired - Lifetime
- 1997-12-04 GB GB9912603A patent/GB2335074B/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0442553A1 (en) * | 1990-02-12 | 1991-08-21 | PIRELLI CAVI S.p.A. | Optical amplifier having a single-mode curved active fibre |
EP0519648A2 (en) * | 1991-06-19 | 1992-12-23 | AT&T Corp. | Gain switchable optical fiber amplifier |
US5469292A (en) * | 1991-07-19 | 1995-11-21 | Lycom A/S | Method of amplifying an optical signal, an optical amplifier for performing the method, and use of such an optical amplifier as a source of light |
EP0527265A1 (en) * | 1991-08-12 | 1993-02-17 | Corning Incorporated | Fiber amplifier having modified gain spectrum |
Non-Patent Citations (4)
Title |
---|
Optics Communication Vol 122 No 4/06 January 1996 pages 163-168 * |
Optics Communications Vol 109 No 5-6 July 1994 pages 499-506 * |
Optics Letters Vol 21 No 15 August 1996 pages 1144-1146 * |
Optics Letters Vol 22 No 14 July 1997 pages 1092-1094 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7161966B2 (en) | 2003-01-24 | 2007-01-09 | Trumpf, Inc. | Side-pumped fiber laser |
US7542488B2 (en) | 2003-01-24 | 2009-06-02 | Trumpf, Inc. | Fiber laser |
Also Published As
Publication number | Publication date |
---|---|
GB0122822D0 (en) | 2001-11-14 |
GB9912603D0 (en) | 1999-07-28 |
GB2366447A (en) | 2002-03-06 |
GB2335074B (en) | 2002-02-13 |
GB2366447B (en) | 2002-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Expiry date: 20171203 |