AU4910100A - Device for producing short pulses by passive mode lock - Google Patents

Device for producing short pulses by passive mode lock

Info

Publication number
AU4910100A
AU4910100A AU49101/00A AU4910100A AU4910100A AU 4910100 A AU4910100 A AU 4910100A AU 49101/00 A AU49101/00 A AU 49101/00A AU 4910100 A AU4910100 A AU 4910100A AU 4910100 A AU4910100 A AU 4910100A
Authority
AU
Australia
Prior art keywords
refraction
intensity
reflector
layer
linear
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.)
Abandoned
Application number
AU49101/00A
Inventor
Peter Glas
Martin Leitner
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.)
Forschungsverbund Berlin FVB eV
Original Assignee
Forschungsverbund Berlin FVB eV
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 DE19954109A external-priority patent/DE19954109C2/en
Application filed by Forschungsverbund Berlin FVB eV filed Critical Forschungsverbund Berlin FVB eV
Publication of AU4910100A publication Critical patent/AU4910100A/en
Abandoned 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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1106—Mode locking
    • H01S3/1112—Passive mode locking
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/3511—Self-focusing or self-trapping of light; Light-induced birefringence; Induced optical Kerr-effect
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/3526—Non-linear optics using two-photon emission or absorption processes
    • 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
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08018—Mode suppression
    • H01S3/0804—Transverse or lateral modes
    • H01S3/0805—Transverse or lateral modes by apertures, e.g. pin-holes or knife-edges
    • 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
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • 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
    • H01S3/1112—Passive mode locking
    • H01S3/1115—Passive mode locking using intracavity saturable absorbers
    • H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Conventional devices for producing very short laser pulses in which an optical medium as the laser source is arranged between two reflectors are provided with a reflector that is provided with semiconductor layers that absorb the incident laser beam depending on the intensity thereof. The aim of the invention is to provide such a device that is easy to produce and does not require a complicated adjustment. To this end, the optical non-linear reflector (2) consists of a refraction-controlled semiconductor layer (7) that has an intensity-depending refractive index and a highly refractive layer (8). A diaphragm (4) and a lens system that consists of at least two lenses (5, 6) is arranged in the beam path between the laser source (3) and the non-linear reflector (2). The distance (a) between the lens (6) and the refraction-controlled layer (7) of the non-linear refractor (2) is adjusted in such a manner that the resulting diameter (12) of the intensity distribution is larger for small intensities than the diameter of the diaphragm (4). The inventive device is easy to produce, can be integrated and easily adapted to different lasers. The inventive device can be used to compensate refractive effects since the refractive index increments for the refraction-controlled semiconductor layer (7) and the optical media (3, 5, 6) have opposite algebraic signs.
AU49101/00A 1999-03-25 2000-03-24 Device for producing short pulses by passive mode lock Abandoned AU4910100A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19915129 1999-03-25
DE19915129 1999-03-25
DE19954109A DE19954109C2 (en) 1999-03-25 1999-11-02 Device for generating short laser pulses with passive mode coupling through 2-photon absorption
DE19954109 1999-11-02
PCT/DE2000/000939 WO2000059082A1 (en) 1999-03-25 2000-03-24 Device for producing short pulses by passive mode lock

Publications (1)

Publication Number Publication Date
AU4910100A true AU4910100A (en) 2000-10-16

Family

ID=26052746

Family Applications (1)

Application Number Title Priority Date Filing Date
AU49101/00A Abandoned AU4910100A (en) 1999-03-25 2000-03-24 Device for producing short pulses by passive mode lock

Country Status (4)

Country Link
EP (1) EP1166403B1 (en)
AT (1) ATE243378T1 (en)
AU (1) AU4910100A (en)
WO (1) WO2000059082A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109084A1 (en) * 2001-02-24 2002-09-12 Univ Karlsruhe Optical element

Also Published As

Publication number Publication date
EP1166403A1 (en) 2002-01-02
ATE243378T1 (en) 2003-07-15
EP1166403B1 (en) 2003-06-18
WO2000059082A1 (en) 2000-10-05

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase