AU2001293989A1 - Optical communications apparatus - Google Patents

Optical communications apparatus

Info

Publication number
AU2001293989A1
AU2001293989A1 AU2001293989A AU9398901A AU2001293989A1 AU 2001293989 A1 AU2001293989 A1 AU 2001293989A1 AU 2001293989 A AU2001293989 A AU 2001293989A AU 9398901 A AU9398901 A AU 9398901A AU 2001293989 A1 AU2001293989 A1 AU 2001293989A1
Authority
AU
Australia
Prior art keywords
communications apparatus
optical communications
optical
communications
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
AU2001293989A
Inventor
Richard Alan Doyle
Gordon Malcolm Edge
Daniel Timson
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.)
GENTECH INVESTMENT GROUP AG
Original Assignee
Scientific Generics 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
Priority claimed from GB0024806A external-priority patent/GB0024806D0/en
Priority claimed from GB0029629A external-priority patent/GB0029629D0/en
Priority claimed from GB0100193A external-priority patent/GB0100193D0/en
Application filed by Scientific Generics Ltd filed Critical Scientific Generics Ltd
Publication of AU2001293989A1 publication Critical patent/AU2001293989A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/532—Polarisation modulation
    • 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
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • H01S5/0421—Electrical excitation ; Circuits therefor characterised by the semiconducting contacting layers
    • 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
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • H01S5/0425—Electrodes, e.g. characterised by the structure
    • H01S5/04256—Electrodes, e.g. characterised by the structure characterised by the configuration
    • H01S5/04257—Electrodes, e.g. characterised by the structure characterised by the configuration having positive and negative electrodes on the same side of the substrate
    • 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
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06233—Controlling other output parameters than intensity or frequency
    • H01S5/06236—Controlling other output parameters than intensity or frequency controlling the polarisation, e.g. TM/TE polarisation switching
    • 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
    • H01S5/341—Structures having reduced dimensionality, e.g. quantum wires
    • H01S5/3412—Structures having reduced dimensionality, e.g. quantum wires quantum box or quantum dash
AU2001293989A 2000-10-10 2001-10-10 Optical communications apparatus Abandoned AU2001293989A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB0024806.2 2000-10-10
GB0024806A GB0024806D0 (en) 2000-10-10 2000-10-10 Spin-based polarisation modulation devices
GB0029629A GB0029629D0 (en) 2000-12-05 2000-12-05 Spin based polarisation modulation devices
GB0029629.3 2000-12-05
GB0100193A GB0100193D0 (en) 2001-01-04 2001-01-04 Control of spin-based devices
GB0100193.2 2001-01-04
PCT/GB2001/004511 WO2002032022A2 (en) 2000-10-10 2001-10-10 Optical communications apparatus

Publications (1)

Publication Number Publication Date
AU2001293989A1 true AU2001293989A1 (en) 2002-04-22

Family

ID=27255928

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001293989A Abandoned AU2001293989A1 (en) 2000-10-10 2001-10-10 Optical communications apparatus

Country Status (4)

Country Link
EP (1) EP1325572A2 (en)
JP (1) JP2004516697A (en)
AU (1) AU2001293989A1 (en)
WO (1) WO2002032022A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6869230B2 (en) * 2002-07-02 2005-03-22 Sae Magnetics (Hong Kong) Assembly for high-speed optical transmitter or receiver
JP5022753B2 (en) * 2007-03-29 2012-09-12 富士通株式会社 Cooling device for light emitting / receiving elements
CN103227678B (en) * 2013-03-28 2015-09-23 上海卫星工程研究所 Directly utilize the space communication system of solar X-ray
US10581522B1 (en) 2018-12-06 2020-03-03 At&T Intellectual Property I, L.P. Free-space, twisted light optical communication system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2708085B2 (en) * 1993-03-08 1998-02-04 科学技術振興事業団 Optical semiconductor device
FR2743930B1 (en) * 1996-01-19 2000-04-07 Fujitsu Ltd MAGNETIC SENSOR FOR READING RECORDING MEDIA
US5764567A (en) * 1996-11-27 1998-06-09 International Business Machines Corporation Magnetic tunnel junction device with nonferromagnetic interface layer for improved magnetic field response
DE19844890C2 (en) * 1998-09-30 2002-02-14 Infineon Technologies Ag Thin-layer structure of a magnetic field sensitive sensor with a magnetoresistive multilayer system with spin dependence of the electron scattering
GB0019618D0 (en) * 2000-08-09 2000-09-27 Scient Generics Ltd Spin memory device

Also Published As

Publication number Publication date
EP1325572A2 (en) 2003-07-09
WO2002032022A3 (en) 2003-03-20
WO2002032022A2 (en) 2002-04-18
JP2004516697A (en) 2004-06-03

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