WO1997008789A3 - Laser system - Google Patents
Laser system Download PDFInfo
- Publication number
- WO1997008789A3 WO1997008789A3 PCT/DE1996/001500 DE9601500W WO9708789A3 WO 1997008789 A3 WO1997008789 A3 WO 1997008789A3 DE 9601500 W DE9601500 W DE 9601500W WO 9708789 A3 WO9708789 A3 WO 9708789A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resonator
- wall
- reflection
- active material
- laser
- Prior art date
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
- H01S3/0602—Crystal lasers or glass lasers
- H01S3/061—Crystal lasers or glass lasers with elliptical or circular cross-section and elongated shape, e.g. rod
-
- 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
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
-
- 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
- H01S3/0619—Coatings, e.g. AR, HR, passivation layer
- H01S3/0625—Coatings on surfaces other than the end-faces
-
- 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
- H01S3/094084—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light with pump light recycling, i.e. with reinjection of the unused pump light, e.g. by reflectors or circulators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Abstract
The invention concerns a laser system with an active material (3) located within a resonator (2) and in which at least part of the outer wall (4, 5) of the resonator has a highly reflecting or partly reflecting mirror. The reflection-reducing and/or absorbent coating (6) comprises a material which cuts down reflection of the laser light (9) and/or absorbs it and/or has a refractive index matched to that of the active material. In addition, the outer wall of the resonator (2) has a window (7) through which pumping radiation (8) can be beamed into the active material, and the reflection-reducing and/or absorbent coating (6) is applied to essentially the whole of the surface of the resonator wall (4, 5), with the exception of the window (7) allowing pumping radiation (8) to be beamed in and with the exception of the laser-light output port (10).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995131756 DE19531756C1 (en) | 1995-08-29 | 1995-08-29 | Neodymium doped YAG laser system |
DE19531756.4 | 1995-08-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997008789A2 WO1997008789A2 (en) | 1997-03-06 |
WO1997008789A3 true WO1997008789A3 (en) | 1997-04-10 |
Family
ID=7770666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/001500 WO1997008789A2 (en) | 1995-08-29 | 1996-08-09 | Laser system |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19531756C1 (en) |
TW (1) | TW366614B (en) |
WO (1) | WO1997008789A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779937B1 (en) | 1998-06-23 | 2000-08-11 | Sofradim Production | ADJUSTED ISOELASTIC PROSTHETIC FABRIC |
FR2885267A1 (en) * | 2005-04-28 | 2006-11-03 | Cie Ind Des Lasers Cilas Sa | Active element for laser source, has different crystals presenting low doping at upstream face of elongated core, and absorption unit arranged in core periphery for absorbing any radiation presenting wavelength of laser radiation |
FR2885266B1 (en) * | 2005-04-28 | 2009-10-30 | Cie Ind Des Lasers Cilas Sa | ACTIVE ELEMENT FOR LASER SOURCE COMPRISING SUCH ACTIVE ELEMENT |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3684980A (en) * | 1970-10-13 | 1972-08-15 | Texas Instruments Inc | High effective absorption coefficient solid state laser rods |
GB2215906A (en) * | 1988-02-10 | 1989-09-27 | Mitsubishi Electric Corp | Laser device |
US4899347A (en) * | 1989-05-11 | 1990-02-06 | General Electric Company | Solid state laser gain medium with diamond coating |
DE4207824A1 (en) * | 1992-03-12 | 1993-09-23 | Deutsche Aerospace | Crystal for transversely excited solid laser or amplifier - is formed by optical contacting of doped optically non-absorbent coatings on all sides of square-section undoped absorbent core |
US5335237A (en) * | 1992-10-29 | 1994-08-02 | The United States Of America As Represented By The United States Department Of Energy | Parasitic oscillation suppression in solid state lasers using absorbing thin films |
JPH07111350A (en) * | 1993-10-12 | 1995-04-25 | Nissin Electric Co Ltd | Solid-state laser device |
-
1995
- 1995-08-29 DE DE1995131756 patent/DE19531756C1/en not_active Expired - Fee Related
-
1996
- 1996-08-08 TW TW085109644A patent/TW366614B/en active
- 1996-08-09 WO PCT/DE1996/001500 patent/WO1997008789A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3684980A (en) * | 1970-10-13 | 1972-08-15 | Texas Instruments Inc | High effective absorption coefficient solid state laser rods |
GB2215906A (en) * | 1988-02-10 | 1989-09-27 | Mitsubishi Electric Corp | Laser device |
US4899347A (en) * | 1989-05-11 | 1990-02-06 | General Electric Company | Solid state laser gain medium with diamond coating |
DE4207824A1 (en) * | 1992-03-12 | 1993-09-23 | Deutsche Aerospace | Crystal for transversely excited solid laser or amplifier - is formed by optical contacting of doped optically non-absorbent coatings on all sides of square-section undoped absorbent core |
US5335237A (en) * | 1992-10-29 | 1994-08-02 | The United States Of America As Represented By The United States Department Of Energy | Parasitic oscillation suppression in solid state lasers using absorbing thin films |
JPH07111350A (en) * | 1993-10-12 | 1995-04-25 | Nissin Electric Co Ltd | Solid-state laser device |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 95, no. 004 * |
Also Published As
Publication number | Publication date |
---|---|
TW366614B (en) | 1999-08-11 |
WO1997008789A2 (en) | 1997-03-06 |
DE19531756C1 (en) | 1996-12-05 |
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DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
122 | Ep: pct application non-entry in european phase |