SE7908117L - RING LASER - Google Patents
RING LASERInfo
- Publication number
- SE7908117L SE7908117L SE7908117A SE7908117A SE7908117L SE 7908117 L SE7908117 L SE 7908117L SE 7908117 A SE7908117 A SE 7908117A SE 7908117 A SE7908117 A SE 7908117A SE 7908117 L SE7908117 L SE 7908117L
- Authority
- SE
- Sweden
- Prior art keywords
- laser
- plane
- mirror
- length
- ring laser
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/66—Ring laser gyrometers
- G01C19/661—Ring laser gyrometers details
-
- 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
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
-
- 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
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
- H01S3/0835—Gas ring lasers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
- Gyroscopes (AREA)
Abstract
In an optical resonator arrangement, particularly a ring laser gyroscope, a concave mirror 22 and at least one planar mirror 24, 26, 28 are used to guide a laser beam 14, the plane of one of the mirrors being inclined at an angle of between 1 and 3 arc minutes with respect to the plane of the or each other mirror. The laser is tuned by translating the concave mirror substantially in its own plane (which may be inclined itself in one embodiment) so as to alter the length of the laser path. One of mirrors 26 preferably has an aperture for suppressing off-axis modes of oscillation, and this mirror must be translated in its own plane during tuning to realign the aperture to suppress the off-axis modes. Such a ring laser gyroscope may be made very small: the length of each side of the laser path may be less than an inch in length. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94735578A | 1978-10-02 | 1978-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7908117L true SE7908117L (en) | 1980-04-03 |
| SE449664B SE449664B (en) | 1987-05-11 |
Family
ID=25486010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7908117A SE449664B (en) | 1978-10-02 | 1979-10-01 | PROCEDURE FOR REGULATING LASER BAN'S LENGTH IN AN OPTICAL RESONATOR AND OPTICAL RESONATOR FOR EXECUTION OF THE PROCEDURE |
Country Status (9)
| Country | Link |
|---|---|
| JP (2) | JPS584475B2 (en) |
| CA (1) | CA1133615A (en) |
| CH (1) | CH651157A5 (en) |
| DE (1) | DE2939804A1 (en) |
| FR (1) | FR2438357A1 (en) |
| GB (1) | GB2032169B (en) |
| IL (1) | IL57936A (en) |
| IT (1) | IT1164049B (en) |
| SE (1) | SE449664B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519708A (en) * | 1981-05-20 | 1985-05-28 | Raytheon Company | Mode discrimination apparatus |
| IL70499A (en) * | 1982-12-27 | 1988-06-30 | Litton Systems Inc | Laser cathode |
| US4672623A (en) * | 1985-08-16 | 1987-06-09 | Honeywell Inc. | Cathode construction for a laser |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3390606A (en) * | 1965-03-01 | 1968-07-02 | Honeywell Inc | Control apparatus |
| US3462708A (en) * | 1966-11-29 | 1969-08-19 | Sperry Rand Corp | Ring laser having a piezoelectric reflector external to the closed loop to cancel a frequency modulation within the loop |
| US3503005A (en) * | 1967-10-17 | 1970-03-24 | Honeywell Inc | Ring laser which is biased to permit two equal intensity transition frequencies to be generated in opposite directions |
| US3581227A (en) * | 1968-04-18 | 1971-05-25 | Honeywell Inc | Adjustable, thin membrane mirror for use in the stabilization of ring lasers |
| US3824487A (en) * | 1972-05-08 | 1974-07-16 | United Aircraft Corp | Unstable ring laser resonators |
| CA1085031A (en) * | 1976-11-08 | 1980-09-02 | Litton Systems, Inc. | Laser gyro with phased dithered mirrors |
| US4115004A (en) * | 1976-11-15 | 1978-09-19 | Litton Systems, Inc. | Counterbalanced oscillating ring laser gyro |
-
1979
- 1979-07-31 IL IL57936A patent/IL57936A/en unknown
- 1979-08-08 CA CA333,345A patent/CA1133615A/en not_active Expired
- 1979-09-27 CH CH8706/79A patent/CH651157A5/en not_active IP Right Cessation
- 1979-09-27 FR FR7924079A patent/FR2438357A1/en active Granted
- 1979-09-28 IT IT50401/79A patent/IT1164049B/en active
- 1979-10-01 SE SE7908117A patent/SE449664B/en not_active IP Right Cessation
- 1979-10-01 DE DE19792939804 patent/DE2939804A1/en not_active Ceased
- 1979-10-02 GB GB7934149A patent/GB2032169B/en not_active Expired
- 1979-10-02 JP JP54126484A patent/JPS584475B2/en not_active Expired
-
1982
- 1982-06-16 JP JP57102360A patent/JPS5910078B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910078B2 (en) | 1984-03-06 |
| CH651157A5 (en) | 1985-08-30 |
| SE449664B (en) | 1987-05-11 |
| FR2438357A1 (en) | 1980-04-30 |
| IL57936A (en) | 1982-07-30 |
| GB2032169A (en) | 1980-04-30 |
| GB2032169B (en) | 1982-09-22 |
| FR2438357B1 (en) | 1984-02-17 |
| JPS5821385A (en) | 1983-02-08 |
| JPS5548989A (en) | 1980-04-08 |
| DE2939804A1 (en) | 1980-04-10 |
| IT1164049B (en) | 1987-04-08 |
| CA1133615A (en) | 1982-10-12 |
| JPS584475B2 (en) | 1983-01-26 |
| IT7950401A0 (en) | 1979-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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