GB1388327A - Lasers - Google Patents

Lasers

Info

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
Application number
GB4507372A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP7606971A external-priority patent/JPS4842696A/ja
Priority claimed from JP10034571A external-priority patent/JPS4865893A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB1388327A publication Critical patent/GB1388327A/en
Expired legal-status Critical Current

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.
GB4507372A 1971-09-29 1972-09-29 Lasers Expired GB1388327A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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