CA1035029A - Laser having simultaneous modulation, mode-locking and intensity control - Google Patents

Laser having simultaneous modulation, mode-locking and intensity control

Info

Publication number
CA1035029A
CA1035029A CA220,859A CA220859A CA1035029A CA 1035029 A CA1035029 A CA 1035029A CA 220859 A CA220859 A CA 220859A CA 1035029 A CA1035029 A CA 1035029A
Authority
CA
Canada
Prior art keywords
laser
locking
mode
intensity control
simultaneous modulation
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
CA220,859A
Other languages
English (en)
French (fr)
Inventor
Alexandre Jovanovic
Jurg Steffen
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.)
Lasag AG
Original Assignee
Lasag AG
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 Lasag AG filed Critical Lasag AG
Application granted granted Critical
Publication of CA1035029A publication Critical patent/CA1035029A/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
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H01S3/107—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
    • B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
    • B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1ns or less
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • 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
    • H01S3/1106—Mode locking
    • H01S3/1109—Active mode locking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
CA220,859A 1974-02-26 1975-02-25 Laser having simultaneous modulation, mode-locking and intensity control Expired CA1035029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH268274A CH583978A5 (zh) 1974-02-26 1974-02-26

Publications (1)

Publication Number Publication Date
CA1035029A true CA1035029A (en) 1978-07-18

Family

ID=4239205

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220,859A Expired CA1035029A (en) 1974-02-26 1975-02-25 Laser having simultaneous modulation, mode-locking and intensity control

Country Status (9)

Country Link
US (1) US4039823A (zh)
JP (1) JPS50145999A (zh)
AU (1) AU7829675A (zh)
CA (1) CA1035029A (zh)
CH (1) CH583978A5 (zh)
DE (1) DE2506343A1 (zh)
FR (1) FR2272783B3 (zh)
GB (1) GB1512210A (zh)
IT (1) IT1033207B (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323755A (en) * 1979-09-24 1982-04-06 Rca Corporation Method of making a machine-readable marking in a workpiece
US4519708A (en) * 1981-05-20 1985-05-28 Raytheon Company Mode discrimination apparatus
US4752669A (en) * 1986-12-16 1988-06-21 Prc Corporation Method and apparatus for laser processing of materials
JPS6467043A (en) * 1987-09-08 1989-03-13 Nippon Telegraph & Telephone Generating device for very high speed light pulse train
US5966307A (en) * 1997-06-10 1999-10-12 Behavior Tech Computer Corporation Laser marker control system
JP2009238285A (ja) * 2008-03-26 2009-10-15 Sony Corp 光記録方法及び光記録装置
DE102014015951A1 (de) * 2014-10-20 2016-04-21 4Jet Technologies Gmbh Verfahren zum Bearbeiten eines elektrisch nicht leitenden oder halbleitenden Materials
KR102182798B1 (ko) 2016-03-02 2020-11-26 퓨얼 셀 에너지, 인크 직류(dc) 부하 레벨러

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285073B (de) * 1963-04-11 1968-12-12 Siemens Ag Anordnung zur inneren Modulation der Strahlung eines quantenmechanischen Senders
US3551840A (en) * 1965-01-18 1970-12-29 Bell Telephone Labor Inc Pulse code modulated optical maser
US3373380A (en) * 1965-08-03 1968-03-12 Zenith Radio Corp Laser beam-soundwave techniques using curved acoustic waves
US3433958A (en) * 1965-08-27 1969-03-18 Bell Telephone Labor Inc Optical channel separation by deflection
US3635562A (en) * 1968-11-12 1972-01-18 Comp Generale Electricite Optical interferometer for detection of small displacements
US3638137A (en) * 1969-01-10 1972-01-25 Hughes Aircraft Co Method of q-switching and mode locking a laser beam and structure
US3834790A (en) * 1972-06-28 1974-09-10 Rockwell International Corp Cumulative optical frequency shifter

Also Published As

Publication number Publication date
FR2272783A1 (zh) 1975-12-26
AU7829675A (en) 1976-08-19
US4039823A (en) 1977-08-02
JPS50145999A (zh) 1975-11-22
CH583978A5 (zh) 1977-01-14
DE2506343A1 (de) 1975-08-28
FR2272783B3 (zh) 1977-11-04
GB1512210A (en) 1978-05-24
IT1033207B (it) 1979-07-10

Similar Documents

Publication Publication Date Title
CA1015437A (en) Laser wavelength stabilization
AU501473B2 (en) Sulphur burner
CA1033818A (en) Pulse width modulated amplifier
CA1002644A (en) Transversely-excited waveguide gas laser
CA1034213A (en) Power and modulation control system
AU499712B2 (en) Limiting laser amplification
AU7964975A (en) Laser
CA1017046A (en) Fabry-perot polarization laser beam modulator
CA1035029A (en) Laser having simultaneous modulation, mode-locking and intensity control
AU499461B2 (en) Arc-welding power source
CA1028878A (en) Modulation contrast microscope
AU502149B2 (en) Delta modulation
AU501099B2 (en) Pulse width modulator
CA1006255A (en) Variable stripe width semiconductor laser
AU469880B2 (en) Intra-cavity laser modulation
SE409794B (sv) Dynamisk reglering i kodmodulerande pulsoverforingsanleggningar
SU580638A1 (ru) Импульсно-кодовый модул тор
CA1027470A (en) Oxy-oil burner
AU1083676A (en) Heterostructure laser
CA1030275A (en) Three frequency modulated thermal neutron lifetime log
CA1032071A (en) Power burner
AU504259B2 (en) Insecticide activators
CA1019218A (en) Suture applicator
AU495030B2 (en) Power and modulation control system
CA980663A (en) Felling head