JPS55110443A - Selection unit for optical signal - Google Patents

Selection unit for optical signal

Info

Publication number
JPS55110443A
JPS55110443A JP1812779A JP1812779A JPS55110443A JP S55110443 A JPS55110443 A JP S55110443A JP 1812779 A JP1812779 A JP 1812779A JP 1812779 A JP1812779 A JP 1812779A JP S55110443 A JPS55110443 A JP S55110443A
Authority
JP
Japan
Prior art keywords
optical signal
wave length
photo
electric
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.)
Pending
Application number
JP1812779A
Other languages
Japanese (ja)
Inventor
Hiroshi Nakamura
Naomasa Hanano
Tsutomu Fukugahara
Kazuo Iguchi
Masaaki Takahashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1812779A priority Critical patent/JPS55110443A/en
Publication of JPS55110443A publication Critical patent/JPS55110443A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Abstract

PURPOSE:To reduce power consumption, by transmitting the optical signal multiplexing two or more wave lengths into the thin film Fabry-Pe rot rot type optical band pass filter and changing the incident angle of optical signal to select the optical signal. CONSTITUTION:Different video signals CH1-CH4 are respectively applied to the electric-photo converters 1-4 of the transmitter 31, the signals CH1-CH4 are converted into optical signal and fed to the photo synthesizer 5 to multiplex the wave length of optical signal. This optical signal in wave length multiplex is transmitted to the receiver 32 via the optical fiber L, and wave length selection is made by giving it to the thin film Fabry-Pe rot type BPF6, it is converted into electric signal at the photo-electric converter 8 to picture the desired program on TV. The BPF is controlled with the output of the drive control circuit 7 to change the center wave length under passing incident to BPF6 and the power consumption can be reduced with the output of the band of passing center wave length desired.
JP1812779A 1979-02-19 1979-02-19 Selection unit for optical signal Pending JPS55110443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1812779A JPS55110443A (en) 1979-02-19 1979-02-19 Selection unit for optical signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1812779A JPS55110443A (en) 1979-02-19 1979-02-19 Selection unit for optical signal

Publications (1)

Publication Number Publication Date
JPS55110443A true JPS55110443A (en) 1980-08-25

Family

ID=11962929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1812779A Pending JPS55110443A (en) 1979-02-19 1979-02-19 Selection unit for optical signal

Country Status (1)

Country Link
JP (1) JPS55110443A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0222631A (en) * 1988-07-11 1990-01-25 Hitachi Ltd Detector for frequency multiplex optical communication
JP2009504095A (en) * 2005-08-02 2009-01-29 アイティーティー マニュファクチャリング エンタープライジーズ， インコーポレイテッド Communication transceiver architecture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0222631A (en) * 1988-07-11 1990-01-25 Hitachi Ltd Detector for frequency multiplex optical communication
JP2875537B2 (en) * 1988-07-11 1999-03-31 株式会社日立製作所 Frequency multiplexing optical communication detector
JP2009504095A (en) * 2005-08-02 2009-01-29 アイティーティー マニュファクチャリング エンタープライジーズ， インコーポレイテッド Communication transceiver architecture
JP4753444B2 (en) * 2005-08-02 2011-08-24 アイティーティー マニュファクチャリング エンタープライジーズ， インコーポレイテッド Communication transceiver architecture

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