JPH0572777B2 - - Google Patents

Info

Publication number
JPH0572777B2
JPH0572777B2 JP57229060A JP22906082A JPH0572777B2 JP H0572777 B2 JPH0572777 B2 JP H0572777B2 JP 57229060 A JP57229060 A JP 57229060A JP 22906082 A JP22906082 A JP 22906082A JP H0572777 B2 JPH0572777 B2 JP H0572777B2
Authority
JP
Japan
Prior art keywords
light
signal
polarization
section
optical
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 - Lifetime
Application number
JP57229060A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59122140A (ja
Inventor
Katsumi Emura
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.)
NEC Corp
Original Assignee
Nippon Electric Co 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
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP57229060A priority Critical patent/JPS59122140A/ja
Publication of JPS59122140A publication Critical patent/JPS59122140A/ja
Publication of JPH0572777B2 publication Critical patent/JPH0572777B2/ja
Granted 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
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [IF] is obtained
    • 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
    • H04B10/615—Arrangements affecting the optical part of the receiver
    • H04B10/6151—Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
JP57229060A 1982-12-28 1982-12-28 光ヘテロダイン検波装置 Granted JPS59122140A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57229060A JPS59122140A (ja) 1982-12-28 1982-12-28 光ヘテロダイン検波装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57229060A JPS59122140A (ja) 1982-12-28 1982-12-28 光ヘテロダイン検波装置

Publications (2)

Publication Number Publication Date
JPS59122140A JPS59122140A (ja) 1984-07-14
JPH0572777B2 true JPH0572777B2 (2) 1993-10-13

Family

ID=16886105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57229060A Granted JPS59122140A (ja) 1982-12-28 1982-12-28 光ヘテロダイン検波装置

Country Status (1)

Country Link
JP (1) JPS59122140A (2)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179330A (ja) * 1984-09-26 1986-04-22 Nippon Telegr & Teleph Corp <Ntt> 光ヘテロダイン検波伝送方式
GB8514264D0 (en) * 1985-06-06 1985-07-10 British Telecomm Coherent optical receivers
GB8515499D0 (en) * 1985-06-19 1985-07-24 British Telecomm Digital information transmission system
IT1189657B (it) * 1986-04-10 1988-02-04 Cselt Centro Studi Lab Telecom Sistema di trasmissione in fibra ottica a modulazione di polarizzazione e rivelazione coerente eterodina
US4723317A (en) * 1986-05-08 1988-02-02 American Telephone And Telegraph Company, At&T Bell Laboratories Optical heterodyne mixers providing image-frequency rejection
US4723316A (en) * 1986-05-08 1988-02-02 American Telephone & Telegraph Company, At&T Bell Laboratories Polarization independent coherent optical heterodyne receivers
US4723315A (en) * 1986-06-24 1988-02-02 Itek Corporation Polarization matching mixer
JPS6374331A (ja) * 1986-09-18 1988-04-04 Kokusai Denshin Denwa Co Ltd <Kdd> ダイバ−シテイ光受信方式
NL8602864A (nl) * 1986-11-12 1988-06-01 Philips Nv Inrichting voor optische heterodyne detektie van een optische signaalbundel en optisch transmissiesysteem voorzien van een dergelijke inrichting.
JPH02162330A (ja) * 1988-12-16 1990-06-21 Hitachi Ltd 偏波ダイバシティ光受信方法とその装置および中間周波数安定化方法
RU2584185C1 (ru) * 2015-01-21 2016-05-20 ОАО "Национальный центр лазерных систем и комплексов "Астрофизика" Лазерное приемное устройство

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431878A (en) * 1972-11-13 1976-04-14 Ici Ltd Colouration process
JPS57193143A (en) * 1981-05-25 1982-11-27 Nippon Telegr & Teleph Corp <Ntt> Optical polarized wave transmitting system

Also Published As

Publication number Publication date
JPS59122140A (ja) 1984-07-14

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