GB1388327A - Lasers - Google Patents
LasersInfo
- Publication number
- GB1388327A GB1388327A GB4507372A GB4507372A GB1388327A GB 1388327 A GB1388327 A GB 1388327A GB 4507372 A GB4507372 A GB 4507372A GB 4507372 A GB4507372 A GB 4507372A GB 1388327 A GB1388327 A GB 1388327A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mirror
- brewster
- laser
- sept
- space
- 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.)
- Expired
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
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
-
- 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)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
1388327 Lasers CANON KK 29 Sept 1972 [29 Sept 1971 11 Dec 1971] 45073/72 Heading H1C A laser has a movable resonator mirror, e.g. for frequency stabilization or control, and a Brewster window adjacent the mirror. In Fig. 3 the mirror 2a is mounted in known manner on two leaf springs 12, and its position is adjustable by current supplied to a solenoid as described in detail with reference to Fig. 2 (not shown). The Brewster 20 reduces polarization rotation caused by this arrangement. A further Brewster may be arranged at the far end of capillary tube 3 adjacent resonator mirror 2b. The space between the mirror and its associated window may be evacuated, Figs. 5, 6 (not shown) to prevent mirror contamination and the effects of air flow in the space. The lengths of the materials used for the mirror mounts and the laser tube are chosen so that their total thermal expansion is zero, i.e. so that the mirror separation remains constant when the laser temperature varies. Typical dimensions, and an equation relating them, are given.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7606971A JPS4842696A (en) | 1971-09-29 | 1971-09-29 | |
JP10034571A JPS4865893A (en) | 1971-12-11 | 1971-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1388327A true GB1388327A (en) | 1975-03-26 |
Family
ID=26417227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4507372A Expired GB1388327A (en) | 1971-09-29 | 1972-09-29 | Lasers |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB1388327A (en) |
NL (1) | NL7213219A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986001649A1 (en) * | 1984-09-04 | 1986-03-13 | Hughes Aircraft Company | Laser mirror displacement device |
EP1035622A1 (en) * | 1999-02-22 | 2000-09-13 | Lucent Technologies Inc. | Magnectically tunable and latchable broad-range semiconductor laser |
-
1972
- 1972-09-29 GB GB4507372A patent/GB1388327A/en not_active Expired
- 1972-09-29 NL NL7213219A patent/NL7213219A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986001649A1 (en) * | 1984-09-04 | 1986-03-13 | Hughes Aircraft Company | Laser mirror displacement device |
EP1035622A1 (en) * | 1999-02-22 | 2000-09-13 | Lucent Technologies Inc. | Magnectically tunable and latchable broad-range semiconductor laser |
US6154471A (en) * | 1999-02-22 | 2000-11-28 | Lucent Technologies Inc. | Magnetically tunable and latchable broad-range semiconductor laser |
Also Published As
Publication number | Publication date |
---|---|
NL7213219A (en) | 1973-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |