WO1988001797A3 - Pulsed laser - Google Patents

Pulsed laser Download PDF

Info

Publication number
WO1988001797A3
WO1988001797A3 PCT/GB1987/000601 GB8700601W WO8801797A3 WO 1988001797 A3 WO1988001797 A3 WO 1988001797A3 GB 8700601 W GB8700601 W GB 8700601W WO 8801797 A3 WO8801797 A3 WO 8801797A3
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
buffer gas
laser
pulsed laser
vapour
Prior art date
Application number
PCT/GB1987/000601
Other languages
French (fr)
Other versions
WO1988001797A2 (en
Inventor
John Joseph Bannister
Original Assignee
Vuman Ltd
John Joseph Bannister
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 Vuman Ltd, John Joseph Bannister filed Critical Vuman Ltd
Publication of WO1988001797A2 publication Critical patent/WO1988001797A2/en
Publication of WO1988001797A3 publication Critical patent/WO1988001797A3/en

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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/115—Q-switching using intracavity electro-optic devices
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/22—Gases
    • H01S3/2215—Iodine compounds or atomic iodine

Landscapes

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

Abstract

A Q-switched pulsed laser in which the Q-factor of the laser cavity is switched between a low value enabling storage of supplied energy in the cavity and a high value enabling a pulse emission of the stored energy. The cavity is filled with a mixture of iodide vapour and a buffer gas, the buffer gas being selected to minimise quenching of the excited state of the iodide vapour. The partial pressures of the iodide vapour and the buffer gas are selected to maintain the single pass small signal gain of the laser smaller than the extinction of the switching means.
PCT/GB1987/000601 1986-09-04 1987-08-26 Pulsed laser WO1988001797A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868621311A GB8621311D0 (en) 1986-09-04 1986-09-04 Pulsed laser
GB8621311 1986-09-04

Publications (2)

Publication Number Publication Date
WO1988001797A2 WO1988001797A2 (en) 1988-03-10
WO1988001797A3 true WO1988001797A3 (en) 1988-05-05

Family

ID=10603655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1987/000601 WO1988001797A2 (en) 1986-09-04 1987-08-26 Pulsed laser

Country Status (4)

Country Link
AU (1) AU7858987A (en)
GB (1) GB8621311D0 (en)
WO (1) WO1988001797A2 (en)
ZA (1) ZA876518B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101983A (en) * 1983-11-08 1985-06-06 Mitsubishi Electric Corp Pulse laser device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101983A (en) * 1983-11-08 1985-06-06 Mitsubishi Electric Corp Pulse laser device

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
J. Phys. E: Sci. Instrum., volume 14, May 1981, The Institute of Physics, H.J. Baker et al.: "electro-optic pulse cutting and mode-locked pulse selection at 1.315 mum using Krytron switching", pages 579-583 see abstract *
Journal of Physics D - Applied Physics, volume 14, no. 8, August 1981, The Institute of Physics H.J. Baker et al.: "Repetitively pulsed iodine laser with thermal gas flow cycle", pages 1367-1376 see page 1373, lines 4-16; page 1374, lines 5-7 *
Patent Abstracts of Japan, volume 9, no. 251 (E-348)(1974), 8 October 1985, & JP-A-60 101 983 (MITSUBISHI DENKI K.K.) 6 June 1985 *
Sov. J. Quant. Electron., volume 6, no. 2, February 1976, American Institute of Physics, V.A. Katulin et al.: "Iodine laser with active Q swithing", pages 205-208 see page 205, column 1, lines 11-14; column 1, line 46 - column 2, line 1; column 2, lines 37-38; page 206. column 1, lines 24-26 *

Also Published As

Publication number Publication date
ZA876518B (en) 1988-08-31
AU7858987A (en) 1988-03-24
WO1988001797A2 (en) 1988-03-10
GB8621311D0 (en) 1987-05-28

Similar Documents

Publication Publication Date Title
Hanst et al. Repetitive pulsing of the CO2 laser by means of CO2 gas and other absorbers
MX9703090A (en) Saturable bragg reflector structure and process for fabricating the same.
Avizonis et al. INTERNAL SELF‐DAMAGE OF RUBY AND Nd‐GLASS LASERS
CA2050490A1 (en) Transverse Discharging Excitation Pulse Laser Oscillator Apparatus
ES8609833A1 (en) A co2 tea laser utilizing an intra-cavity prism q-switch.
WO1988001797A3 (en) Pulsed laser
US4054852A (en) Solid state blue-green laser with high efficiency laser pump
Apollonov et al. Selection of high‐power nanosecond pulses from large‐aperture CO2 oscillators
ES8703066A1 (en) Critical angle rotating prism q-switch.
Atutov et al. Separation of lithium isotopes by light-induced drift
GB1534479A (en) Laser system and method
Downer et al. 3 MHz amplifier for femtosecond optical pulses
JPS5642392A (en) Discharge of gas laser device
GB1388525A (en) Internally-modulated gas laser
BYRON Electron beam molecular lasers(Electron beam stabilized electrical discharge gas lasers)[Semiannual Technical Report, 15 Mar.- 15 Nov. 1972]
JPS6486833A (en) Coffee-aerosol
Box et al. Q switching a CO2 laser by a plasma
Apollonov et al. Regenerative CO2 amplifier of a train of nanosecond pulses
GOLUBEV et al. Physical principles of industrial lasers((Russian book))(Fizicheskie osnovy tekhnologicheskikh lazerov)
FEDINA et al. Q-switching of a molecular-beam gas laser by means of saturating filters(Molecular beam carbon dioxide laser Q switching by ethylene as saturating filter, reducing pulse duration by varying ethylene pressure and active mixture composition)
FELDMAN CO 2 laser plus optimization for harmonic generation(Patent)
JPS5437693A (en) Laser unit
Al'tshuler et al. Mode self-locking in a laser with combined Q switching
JPS56121868A (en) Laser type ignition device
FORD et al. Laser absorption in the 5 micron band(Atmospheric water vapor absorption at CO, HF, and DF laser frequencies using 1-km white absorption cell and laser sources)[Quarterly Report, 23 Dec. 1971- 23 Mar. 1972]

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AT AU BB BG BR CH DE DK FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AT AU BB BG BR CH DE DK FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642