[go: up one dir, main page]

GB1338503A - Wavelength modulation of a dye lacer - Google Patents

Wavelength modulation of a dye lacer

Info

Publication number
GB1338503A
GB1338503A GB1338503DA GB1338503A GB 1338503 A GB1338503 A GB 1338503A GB 1338503D A GB1338503D A GB 1338503DA GB 1338503 A GB1338503 A GB 1338503A
Authority
GB
United Kingdom
Prior art keywords
grating
laser
lamp
flashlamp
photodetector
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
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.)
British Aircraft Corp Ltd
Original Assignee
British Aircraft Corp Ltd
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
Application filed by British Aircraft Corp Ltd filed Critical British Aircraft Corp Ltd
Publication of GB1338503A publication Critical patent/GB1338503A/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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • H01S3/1055—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length one of the reflectors being constituted by a diffraction grating
    • 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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/121—Q-switching using intracavity mechanical devices

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

1338503 Lasers BRITISH AIRCRAFT CORP Ltd 23 May 1972 [13 July 1971] 32760/71 Heading H1C One of the resonator mirrors 4 of a dye laser medium 1, Fig. 1, is formed by a rotating diffraction grating, and the laser's flashlamp is activated only when the grating makes a predetermined angle # with the laser axis 6 so that an output beam of predetermined frequency is obtained. The angle # is detected by a lamp 8 and photodetector 9, light from the lamp being passed to the detector by a mirror 7 mounted on the back of the grating. When the photodetector is activated its output is passed to a delay unit 10 which feeds trigger source 11; the latter receives power from supply 13 and fires the flashlamp within the pumping cavity 1. The delay unit is set by an external voltage 12, so that the frequency of the laser output pulse from the second resonator mirror 2 depends on this external control voltage and corresponds to the 'wavelength reflected by the grating after the time delay. A polygonal grating and a polygonal lamp reflector may be used to obtain higher repetition rates, Fig. 2 (not shown).
GB1338503D 1972-05-23 1972-05-23 Wavelength modulation of a dye lacer Expired GB1338503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3276071 1972-05-23

Publications (1)

Publication Number Publication Date
GB1338503A true GB1338503A (en) 1973-11-28

Family

ID=10343603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1338503D Expired GB1338503A (en) 1972-05-23 1972-05-23 Wavelength modulation of a dye lacer

Country Status (1)

Country Link
GB (1) GB1338503A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335317A1 (en) * 1982-09-30 1984-04-05 Honeywell Inc., Minneapolis, Minn. TUNABLE LASER
GB2153137A (en) * 1984-01-18 1985-08-14 Laser Applic Limited Rapidly tunable laser
JP2007526620A (en) 2003-06-06 2007-09-13 ザ・ジェネラル・ホスピタル・コーポレイション Wavelength tuning source device and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335317A1 (en) * 1982-09-30 1984-04-05 Honeywell Inc., Minneapolis, Minn. TUNABLE LASER
GB2129201A (en) * 1982-09-30 1984-05-10 Honeywell Inc Rapidly tunable laser
GB2153137A (en) * 1984-01-18 1985-08-14 Laser Applic Limited Rapidly tunable laser
JP2007526620A (en) 2003-06-06 2007-09-13 ザ・ジェネラル・ホスピタル・コーポレイション Wavelength tuning source device and method

Similar Documents

Publication Publication Date Title
ATE51730T1 (en) TUNABLE LONG-PULSE DYE LASER.
GB1363143A (en) Polarization independent light modulation means using birefringent crystals
GB1454188A (en)
US3315177A (en) Laser generator
US4264870A (en) Automatic locking system for an injection locked laser
US3701956A (en) Method of an apparatus for generating ultra-short time-duration laser pulses
IN167151B (en)
GB1306583A (en) Production of stimulated radiation in active media of dye lasers
US3277393A (en) Adjustable feedback laser modulator
GB1321389A (en) Laser relaxation oscillators
GB1512798A (en) Laser amplifier system
GB1338503A (en) Wavelength modulation of a dye lacer
GB957235A (en) Optical radar system
CA2201622A1 (en) Optical q-switching to generate ultra short pulses in diode lasers
GB1179625A (en) Multiple Laser Systems
GB1322415A (en) Apparatus for the stimulated emission of radiation
GB1171102A (en) Improvements in Pulsed Laser Systems.
GB1248405A (en) Q-switched lasers
GB1333892A (en) Pulsed lasers systems
GB1196447A (en) Laser Device
GB1418299A (en) Apparatus for stimulated emission of coherent continuously tunable raman radiation
JPS5713789A (en) Solid state laser oscillator
GB1255807A (en) Method and apparatus for generating stable coherent pulses of optical radiation
GB1318362A (en) Laser apparatus
GB1163110A (en) Q-Switch for Laser System.

Legal Events

Date Code Title Description
PS Patent sealed