DE3786418D1 - Optische ueberlagerungsmischer mit spiegelfrequenzunterdrueckung. - Google Patents

Optische ueberlagerungsmischer mit spiegelfrequenzunterdrueckung.

Info

Publication number
DE3786418D1
DE3786418D1 DE8787303853T DE3786418T DE3786418D1 DE 3786418 D1 DE3786418 D1 DE 3786418D1 DE 8787303853 T DE8787303853 T DE 8787303853T DE 3786418 T DE3786418 T DE 3786418T DE 3786418 D1 DE3786418 D1 DE 3786418D1
Authority
DE
Germany
Prior art keywords
frequency reduction
optical overlay
mirror frequency
overlay mixer
mixer
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 - Fee Related
Application number
DE8787303853T
Other languages
English (en)
Other versions
DE3786418T2 (de
Inventor
Bernard Glance
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of DE3786418D1 publication Critical patent/DE3786418D1/de
Application granted granted Critical
Publication of DE3786418T2 publication Critical patent/DE3786418T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • 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
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • 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 [IF] is obtained

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE87303853T 1986-05-08 1987-04-30 Optische Überlagerungsmischer mit Spiegelfrequenzunterdrückung. Expired - Fee Related DE3786418T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/860,825 US4723317A (en) 1986-05-08 1986-05-08 Optical heterodyne mixers providing image-frequency rejection

Publications (2)

Publication Number Publication Date
DE3786418D1 true DE3786418D1 (de) 1993-08-12
DE3786418T2 DE3786418T2 (de) 1993-10-21

Family

ID=25334112

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87303853T Expired - Fee Related DE3786418T2 (de) 1986-05-08 1987-04-30 Optische Überlagerungsmischer mit Spiegelfrequenzunterdrückung.

Country Status (5)

Country Link
US (1) US4723317A (de)
EP (1) EP0245026B1 (de)
JP (1) JPS62272234A (de)
CA (1) CA1256501A (de)
DE (1) DE3786418T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4697284A (en) * 1986-05-08 1987-09-29 American Telephone And Telegraph Company, At&T Bell Laboratories Single-photodiode optical heterodyne mixers
US4723316A (en) * 1986-05-08 1988-02-02 American Telephone & Telegraph Company, At&T Bell Laboratories Polarization independent coherent optical heterodyne receivers
US4794351A (en) * 1986-09-29 1988-12-27 American Telephone And Telegraph Company, At&T Bell Laboratories Optical mixer for upconverting or downconverting an optical signal
JPH0734080B2 (ja) * 1988-10-20 1995-04-12 富士通株式会社 コヒーレント光通信用ヘテロダイン検波受信装置
EP0393373A3 (de) * 1989-04-21 1992-03-11 Siemens Aktiengesellschaft Optischer Heterodynempfänger
US5115332A (en) * 1989-07-20 1992-05-19 Fujitsu Limited Receiver for coherent optical communication
US4989212A (en) * 1990-04-09 1991-01-29 Trw, Inc. Laser diode phase modulation technique
US5027436A (en) * 1990-04-27 1991-06-25 At&T Bell Laboratories Optical hybrid for coherent detection systems
GB2245117B (en) * 1990-06-14 1994-04-06 Stc Plc Optical mixing for heterodyne detection
DE59105787D1 (de) * 1990-11-15 1995-07-27 Sel Alcatel Ag Vorrichtung für den optischen Überlagerungsempfang von Signalen.
US5214796A (en) * 1991-03-29 1993-05-25 Motorola, Inc. Image separation mixer
DK153791A (da) * 1991-09-02 1993-03-03 Nkt Res Center As Fremgangsmaade til undertrykkelse af rin i kohaerente optiske systemer, saasom kommunikationsmodtagere
US5410743A (en) * 1993-06-14 1995-04-25 Motorola, Inc. Active image separation mixer
EP0831604B1 (de) * 1996-09-22 1999-07-21 Oerlikon Contraves AG Verfahren und Vorrichtung zur Kontrolle der Ausrichtung zweier Lichtwellen bei kohärentem Überlagerungsempfang
US7466929B2 (en) * 2004-03-11 2008-12-16 Agilent Technologies, Inc. Method and system for superheterodyne detection of an optical input signal
KR101687118B1 (ko) 2015-10-12 2016-12-28 한국과학기술원 광섬유 지연 라인을 이용한 펨토초 레이저의 반복률 위상 잡음 측정 및 억제 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215840A (en) * 1962-11-23 1965-11-02 Gen Telephone & Elect Image rejecting optical superheterodyne receiver
US3975628A (en) * 1975-04-02 1976-08-17 Hughes Aircraft Company Optical heterodyne receiver with phase or frequency lock
US3970838A (en) * 1975-08-29 1976-07-20 Hughes Aircraft Company Dual channel phase locked optical homodyne receiver
JPS59122140A (ja) * 1982-12-28 1984-07-14 Nec Corp 光ヘテロダイン検波装置
JPS6057824A (ja) * 1983-09-10 1985-04-03 Fujitsu Ltd ヘテロダイン光通信方式
JPH0618348B2 (ja) * 1984-02-06 1994-03-09 日本電信電話株式会社 光受信回路制御装置
JPS60242435A (ja) * 1984-05-17 1985-12-02 Nec Corp 偏波ダイバ−シテイ光受信装置
JPS6123121A (ja) * 1984-07-12 1986-01-31 Nec Corp 光ヘテロダイン受信方法
US4697284A (en) * 1986-05-08 1987-09-29 American Telephone And Telegraph Company, At&T Bell Laboratories Single-photodiode optical heterodyne mixers
US4723316A (en) * 1986-05-08 1988-02-02 American Telephone & Telegraph Company, At&T Bell Laboratories Polarization independent coherent optical heterodyne receivers

Also Published As

Publication number Publication date
EP0245026A3 (en) 1989-06-07
EP0245026B1 (de) 1993-07-07
US4723317A (en) 1988-02-02
EP0245026A2 (de) 1987-11-11
DE3786418T2 (de) 1993-10-21
CA1256501A (en) 1989-06-27
JPS62272234A (ja) 1987-11-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN

8339 Ceased/non-payment of the annual fee