DE3889846D1 - Gerät zur optischen Heterodyn/Homodyndetektion. - Google Patents

Gerät zur optischen Heterodyn/Homodyndetektion.

Info

Publication number
DE3889846D1
DE3889846D1 DE3889846T DE3889846T DE3889846D1 DE 3889846 D1 DE3889846 D1 DE 3889846D1 DE 3889846 T DE3889846 T DE 3889846T DE 3889846 T DE3889846 T DE 3889846T DE 3889846 D1 DE3889846 D1 DE 3889846D1
Authority
DE
Germany
Prior art keywords
optical heterodyne
homodyne detection
homodyne
detection
heterodyne
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
DE3889846T
Other languages
English (en)
Other versions
DE3889846T2 (de
Inventor
Shuntaro Yamazaki
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
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3889846D1 publication Critical patent/DE3889846D1/de
Publication of DE3889846T2 publication Critical patent/DE3889846T2/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
    • 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
    • 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
    • H04B10/63—Homodyne, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal
    • 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
DE3889846T 1987-10-27 1988-10-26 Gerät zur optischen Heterodyn/Homodyndetektion. Expired - Fee Related DE3889846T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62271224A JPH063511B2 (ja) 1987-10-27 1987-10-27 光ヘテロダイン・ホモダイン検波方法

Publications (2)

Publication Number Publication Date
DE3889846D1 true DE3889846D1 (de) 1994-07-07
DE3889846T2 DE3889846T2 (de) 1994-09-08

Family

ID=17497080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3889846T Expired - Fee Related DE3889846T2 (de) 1987-10-27 1988-10-26 Gerät zur optischen Heterodyn/Homodyndetektion.

Country Status (4)

Country Link
US (1) US4903342A (de)
EP (1) EP0314097B1 (de)
JP (1) JPH063511B2 (de)
DE (1) DE3889846T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2540935B2 (ja) * 1989-03-16 1996-10-09 日本電気株式会社 一括偏波制御方法
JPH0362746A (ja) * 1989-07-31 1991-03-18 Nec Corp 中間周波数引き込み方法及び装置
IT1238535B (it) * 1989-11-14 1993-08-18 Cselt Centro Studi Lab Telecom Sistema di comunicazione coerente in fibra ottica a diversita' di polarizzazione in trasmissione
JPH03214939A (ja) * 1990-01-19 1991-09-20 Nec Corp チャンネル識別受信方法
US5159481A (en) * 1990-09-14 1992-10-27 Bell Communications Research, Inc. Polarization scrambler for polarization-sensitive optical devices
GB2264834A (en) * 1992-02-25 1993-09-08 Northern Telecom Ltd Optical transmission system
JPH05303128A (ja) * 1992-04-27 1993-11-16 Nec Corp イメージ信号除去光ヘテロダイン検波受信装置
JP2826436B2 (ja) * 1993-04-02 1998-11-18 日本電気株式会社 中間周波数引き込み方法
US6671056B2 (en) * 2001-01-11 2003-12-30 Agilent Technologies, Inc Method and system for optical spectrum analysis with a depolarized local oscillator signal
EP1341322B1 (de) 2002-02-22 2006-11-02 Nippon Telegraph and Telephone Corporation Polarisationsverwürfler und optisches Netzwerk zu dessen Verwendung
KR100830694B1 (ko) 2007-05-22 2008-05-19 광주과학기술원 광학식 호모다인 간섭계의 전자식 헤테로다인 간섭계로의변환방법 및 이를 이용한 간섭계
JP4565256B2 (ja) * 2008-07-22 2010-10-20 独立行政法人情報通信研究機構 偏光方向同期検出回路及び受信装置
US9344196B1 (en) 2009-05-28 2016-05-17 Freedom Photonics, Llc. Integrated interferometric optical transmitter
US8401399B2 (en) * 2009-05-28 2013-03-19 Freedom Photonics, Llc. Chip-based advanced modulation format transmitter
JP5549333B2 (ja) * 2010-04-07 2014-07-16 富士通株式会社 偏波変動補償装置および光通信システム
US10320152B2 (en) 2017-03-28 2019-06-11 Freedom Photonics Llc Tunable laser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8514264D0 (en) * 1985-06-06 1985-07-10 British Telecomm Coherent optical receivers
JPS6218133A (ja) * 1985-07-17 1987-01-27 Nec Corp 光周波数変調光通信方法
JP3729936B2 (ja) * 1996-06-13 2005-12-21 本田技研工業株式会社 車両のスライドドアのドアロック機構
JPH101130A (ja) * 1996-06-18 1998-01-06 Toppan Printing Co Ltd 液体用紙容器

Also Published As

Publication number Publication date
DE3889846T2 (de) 1994-09-08
JPH01113735A (ja) 1989-05-02
EP0314097A3 (en) 1990-08-29
JPH063511B2 (ja) 1994-01-12
EP0314097A2 (de) 1989-05-03
US4903342A (en) 1990-02-20
EP0314097B1 (de) 1994-06-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee