FR2263623A1 - Laser resonator with automatic alignment control - has grid-shaped resonator enclosing reflector with refractive maximum as function of wavelength - Google Patents
Laser resonator with automatic alignment control - has grid-shaped resonator enclosing reflector with refractive maximum as function of wavelengthInfo
- Publication number
- FR2263623A1 FR2263623A1 FR7502831A FR7502831A FR2263623A1 FR 2263623 A1 FR2263623 A1 FR 2263623A1 FR 7502831 A FR7502831 A FR 7502831A FR 7502831 A FR7502831 A FR 7502831A FR 2263623 A1 FR2263623 A1 FR 2263623A1
- Authority
- FR
- France
- Prior art keywords
- resonator
- grid
- wavelength
- maximum
- function
- 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
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
-
- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/139—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Lasers (AREA)
Abstract
The laser resonator has automatic alignment control and has a grid forming a reflecting element and enclosing the resonator. In the grid the direction of the maximum of certain refraction orders is a function of the wavelength. Inside the resonator is a lens, the reflecting elements enclosing the resonator being located at the lens focal points. The reflecting elements may contain gaps and a slotted orifice may be arranged in front of one of the reflecting elements. Typically one of the reflecting elements has an opticla conductor for output coupling of the radiation generated in the resonator which preferably contains a semiconductor laser, such as a gallium-arsenide diode.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US44941774A | 1974-03-08 | 1974-03-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2263623A1 true FR2263623A1 (en) | 1975-10-03 |
FR2263623B1 FR2263623B1 (en) | 1977-04-15 |
Family
ID=23784086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7502831A Granted FR2263623A1 (en) | 1974-03-08 | 1975-01-20 | Laser resonator with automatic alignment control - has grid-shaped resonator enclosing reflector with refractive maximum as function of wavelength |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS50120991A (en) |
DE (1) | DE2506441A1 (en) |
FR (1) | FR2263623A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001714A1 (en) * | 1977-10-26 | 1979-05-02 | The Post Office | Control apparatus for a semi-conductor laser device |
FR2595013A1 (en) * | 1986-02-24 | 1987-08-28 | Favre Francois | Continuously tunable light source |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52131969U (en) * | 1976-04-01 | 1977-10-06 | ||
US4156206A (en) * | 1976-12-30 | 1979-05-22 | International Business Machines Corporation | Grating coupled waveguide laser apparatus |
JPS5511342A (en) * | 1978-07-10 | 1980-01-26 | Nippon Telegr & Teleph Corp <Ntt> | Laser diode single mode oscillation device |
JPS57143887A (en) * | 1981-02-27 | 1982-09-06 | Fujitsu Ltd | Semiconductor laser |
JPS6330178Y2 (en) * | 1981-03-03 | 1988-08-12 |
-
1975
- 1975-01-20 FR FR7502831A patent/FR2263623A1/en active Granted
- 1975-02-12 JP JP1700175A patent/JPS50120991A/ja active Pending
- 1975-02-15 DE DE19752506441 patent/DE2506441A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001714A1 (en) * | 1977-10-26 | 1979-05-02 | The Post Office | Control apparatus for a semi-conductor laser device |
FR2595013A1 (en) * | 1986-02-24 | 1987-08-28 | Favre Francois | Continuously tunable light source |
Also Published As
Publication number | Publication date |
---|---|
FR2263623B1 (en) | 1977-04-15 |
DE2506441A1 (en) | 1975-10-09 |
JPS50120991A (en) | 1975-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |