DK168932B1 - Fremgangsmåde ved optisk telekommunikationsoverføring - Google Patents

Fremgangsmåde ved optisk telekommunikationsoverføring Download PDF

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Publication number
DK168932B1
DK168932B1 DK213188A DK213188A DK168932B1 DK 168932 B1 DK168932 B1 DK 168932B1 DK 213188 A DK213188 A DK 213188A DK 213188 A DK213188 A DK 213188A DK 168932 B1 DK168932 B1 DK 168932B1
Authority
DK
Denmark
Prior art keywords
optical
frequency
carrier
emf
laser
Prior art date
Application number
DK213188A
Other languages
Danish (da)
English (en)
Other versions
DK213188A (da
DK213188D0 (da
Inventor
Manfred Rocks
Original Assignee
Krone 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 Krone Ag filed Critical Krone Ag
Publication of DK213188D0 publication Critical patent/DK213188D0/da
Publication of DK213188A publication Critical patent/DK213188A/da
Application granted granted Critical
Publication of DK168932B1 publication Critical patent/DK168932B1/da

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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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [fIF] is obtained

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Prostheses (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Cable Accessories (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transmitters (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
DK213188A 1987-04-21 1988-04-19 Fremgangsmåde ved optisk telekommunikationsoverføring DK168932B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3713340 1987-04-21
DE19873713340 DE3713340A1 (de) 1987-04-21 1987-04-21 Verfahren zur optischen nachrichtenuebertragung

Publications (3)

Publication Number Publication Date
DK213188D0 DK213188D0 (da) 1988-04-19
DK213188A DK213188A (da) 1988-10-22
DK168932B1 true DK168932B1 (da) 1994-07-11

Family

ID=6325994

Family Applications (1)

Application Number Title Priority Date Filing Date
DK213188A DK168932B1 (da) 1987-04-21 1988-04-19 Fremgangsmåde ved optisk telekommunikationsoverføring

Country Status (15)

Country Link
US (1) US4882771A (no)
EP (1) EP0288418B1 (no)
JP (1) JPS63282722A (no)
AT (1) ATE78642T1 (no)
AU (1) AU597816B2 (no)
CA (1) CA1282832C (no)
DE (2) DE3713340A1 (no)
DK (1) DK168932B1 (no)
ES (1) ES2034356T3 (no)
GR (1) GR3005367T3 (no)
IE (1) IE61991B1 (no)
NO (1) NO171819C (no)
PT (1) PT87271B (no)
TR (1) TR26000A (no)
ZA (1) ZA882756B (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827228A1 (de) * 1988-08-11 1990-02-15 Standard Elektrik Lorenz Ag Sende/empfangsteil fuer ein bidirektionales kohaerent-optisches uebertragungssystem
DE3900095C2 (de) * 1989-01-04 1998-08-20 Kommunikations Elektronik Verfahren zur Übertragung von optischen Signalen über Lichtwellenleiter nach dem Überlagerungsprinzip
US4972514A (en) * 1989-02-08 1990-11-20 At&T Bell Laboratories Full duplex lightwave communication system
DE69019846T2 (de) * 1989-03-09 1995-12-07 Canon Kk Optisches Übertragungssystem.
DE4019224A1 (de) * 1990-06-15 1991-12-19 Standard Elektrik Lorenz Ag Funk-nachrichtenuebertragungssystem, insbesondere zellulares mobilfunksystem
US5101450A (en) * 1991-01-23 1992-03-31 Gte Laboratories Incorporated Quadrature optical phase modulators for lightwave systems
US6868233B2 (en) * 2000-12-14 2005-03-15 Alcatel Usa Sourcing, L.P. Wavelength agile optical transponder for bi-directional, single fiber WDM system testing
US9203513B2 (en) * 2008-05-15 2015-12-01 Teledyne Scientific & Imaging, Llc SNR enhancement in modulating retroreflector optical communication links

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433960A (en) * 1966-10-31 1969-03-18 Nasa Retrodirective optical system
AU525304B2 (en) * 1978-06-13 1982-10-28 Amalgamated Wireless (Australasia) Limited Optical fibre communication links
FR2513049A1 (fr) * 1981-09-15 1983-03-18 Thomson Csf Systeme de communication optique et reseau telephonique comprenant un tel systeme
US4777661A (en) * 1986-09-22 1988-10-11 Simmonds Precision Products, Inc. Apparatus and method for self-referencing and multiplexing intensity modulating fiber optic sensors
EP0319788B1 (de) * 1987-12-07 1993-08-25 Siemens Aktiengesellschaft Optischer Überlagerungsempfänger für digitale Signale

Also Published As

Publication number Publication date
ATE78642T1 (de) 1992-08-15
PT87271B (pt) 1993-09-30
EP0288418B1 (de) 1992-07-22
DE3872921D1 (de) 1992-08-27
DK213188A (da) 1988-10-22
ZA882756B (en) 1988-10-18
NO171819B (no) 1993-01-25
JPS63282722A (ja) 1988-11-18
DK213188D0 (da) 1988-04-19
CA1282832C (en) 1991-04-09
IE61991B1 (en) 1994-12-14
NO171819C (no) 1993-05-05
EP0288418A2 (de) 1988-10-26
TR26000A (tr) 1993-10-08
DE3713340A1 (de) 1988-11-10
IE880949L (en) 1988-10-21
US4882771A (en) 1989-11-21
GR3005367T3 (no) 1993-05-24
AU1479388A (en) 1988-10-27
EP0288418A3 (en) 1990-06-13
PT87271A (pt) 1989-05-12
NO881702D0 (no) 1988-04-20
AU597816B2 (en) 1990-06-07
ES2034356T3 (es) 1993-04-01
NO881702L (no) 1988-10-24

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed