AU2001275714A1 - Optical wavelength shifting - Google Patents

Optical wavelength shifting

Info

Publication number
AU2001275714A1
AU2001275714A1 AU2001275714A AU7571401A AU2001275714A1 AU 2001275714 A1 AU2001275714 A1 AU 2001275714A1 AU 2001275714 A AU2001275714 A AU 2001275714A AU 7571401 A AU7571401 A AU 7571401A AU 2001275714 A1 AU2001275714 A1 AU 2001275714A1
Authority
AU
Australia
Prior art keywords
sub
frequency
wavelength shifting
wavelength
optical wavelength
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
AU2001275714A
Inventor
Christopher Clement Phillips
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.)
Imperial College of Science Technology and Medicine
Original Assignee
Imperial College of Science Technology and Medicine
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 Imperial College of Science Technology and Medicine filed Critical Imperial College of Science Technology and Medicine
Publication of AU2001275714A1 publication Critical patent/AU2001275714A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/30—Structure or shape of the active region; Materials used for the active region
    • H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
    • H01S5/3401—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers having no PN junction, e.g. unipolar lasers, intersubband lasers, quantum cascade lasers
    • H01S5/3402—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers having no PN junction, e.g. unipolar lasers, intersubband lasers, quantum cascade lasers intersubband lasers, e.g. transitions within the conduction or valence bands
    • 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
    • H01S3/108—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 non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0604—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium comprising a non-linear region, e.g. generating harmonics of the laser frequency
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0608—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5054—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 in which the wavelength is transformed by non-linear properties of the active medium, e.g. four wave mixing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Lasers (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Communication System (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Glass Compositions (AREA)

Abstract

An apparatus ( 8, 14 ) for wavelength shifting light from a first frequency nu<SUB>1 </SUB>to a second frequency nu<SUB>2 </SUB>is provided in the form of a semiconductor intersubband laser ( 8 ) lasing at its intersubband frequency nu<SUB>3</SUB>. The output light is wavelength shifted to a frequency nu<SUB>2</SUB>=nu<SUB>1</SUB>+nnu<SUB>3</SUB>, where n is a non-zero integer ( . . . , -2, -1, 1, 2, . . . ). The wavelength shifted light nu<SUB>2 </SUB>may be amplitude modulated and/or frequency modulated to impart information upon it. The wavelength shifting is a coherent process allowing for the possibility of coherent communication techniques to be used.
AU2001275714A 2000-08-07 2001-07-27 Optical wavelength shifting Abandoned AU2001275714A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0019376A GB2365620A (en) 2000-08-07 2000-08-07 Optical wavelength shifting by semiconductor intersubband laser
GB0019376 2000-08-07
PCT/GB2001/003394 WO2002013344A1 (en) 2000-08-07 2001-07-27 Optical wavelength shifting

Publications (1)

Publication Number Publication Date
AU2001275714A1 true AU2001275714A1 (en) 2002-02-18

Family

ID=9897149

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001275714A Abandoned AU2001275714A1 (en) 2000-08-07 2001-07-27 Optical wavelength shifting

Country Status (8)

Country Link
US (1) US7081985B2 (en)
EP (1) EP1310024B1 (en)
AT (1) ATE277440T1 (en)
AU (1) AU2001275714A1 (en)
DE (1) DE60105825T2 (en)
ES (1) ES2227242T3 (en)
GB (1) GB2365620A (en)
WO (1) WO2002013344A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6788727B2 (en) * 2002-06-13 2004-09-07 Intel Corporation Method and apparatus for tunable wavelength conversion using a bragg grating and a laser in a semiconductor substrate
FR2965642B1 (en) 2010-09-30 2012-10-26 Centre Nat Rech Scient OPTICAL WAVELENGTH CONVERTER
US9020350B2 (en) 2011-06-24 2015-04-28 Techsys Insights Optical spectrum recovery
US10670740B2 (en) 2012-02-14 2020-06-02 American Science And Engineering, Inc. Spectral discrimination using wavelength-shifting fiber-coupled scintillation detectors
EP3271709B1 (en) 2015-03-20 2022-09-21 Rapiscan Systems, Inc. Hand-held portable backscatter inspection system
EP3811117A4 (en) * 2018-06-20 2022-03-16 American Science & Engineering, Inc. Wavelength-shifting sheet-coupled scintillation detectors
US11340361B1 (en) 2020-11-23 2022-05-24 American Science And Engineering, Inc. Wireless transmission detector panel for an X-ray scanner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04360591A (en) 1991-06-06 1992-12-14 Hamamatsu Photonics Kk Variable wavelength light source device
FR2736168B1 (en) * 1995-06-30 1997-07-25 Thomson Csf FREQUENCY CONVERTER COMPRISING A HETEROSTRUCTURE SEMICONDUCTOR GUIDE
FR2740271B1 (en) 1995-10-20 1997-11-07 Thomson Csf QUANTUM WELL LASER
FR2784514B1 (en) 1998-10-13 2001-04-27 Thomson Csf METHOD FOR CONTROLLING A SINGLE POLE SEMICONDUCTOR LASER

Also Published As

Publication number Publication date
GB0019376D0 (en) 2000-09-27
EP1310024A1 (en) 2003-05-14
WO2002013344A1 (en) 2002-02-14
ES2227242T3 (en) 2005-04-01
GB2365620A (en) 2002-02-20
DE60105825T2 (en) 2005-10-06
EP1310024B1 (en) 2004-09-22
DE60105825D1 (en) 2004-10-28
US20050073740A1 (en) 2005-04-07
US7081985B2 (en) 2006-07-25
ATE277440T1 (en) 2004-10-15

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