JPS5591243A - Two-way optical communication circuit - Google Patents

Two-way optical communication circuit

Info

Publication number
JPS5591243A
JPS5591243A JP15419578A JP15419578A JPS5591243A JP S5591243 A JPS5591243 A JP S5591243A JP 15419578 A JP15419578 A JP 15419578A JP 15419578 A JP15419578 A JP 15419578A JP S5591243 A JPS5591243 A JP S5591243A
Authority
JP
Japan
Prior art keywords
optical fiber
communication circuit
film
optical communication
way 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.)
Granted
Application number
JP15419578A
Other languages
Japanese (ja)
Other versions
JPS5742254B2 (en
Inventor
Fumio Mita
Seiji Terai
Shoichi Kurita
Toshio Ooya
Michitoshi Nakaya
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 JP15419578A priority Critical patent/JPS5591243A/en
Publication of JPS5591243A publication Critical patent/JPS5591243A/en
Publication of JPS5742254B2 publication Critical patent/JPS5742254B2/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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To reduce the general loss of the branch circuit as well as to simplify the structure by providing the branch line to the optical fiber itself. CONSTITUTION:Two-way optical communication circuit 21 comprises optical fiber 22 and 23, luminius element 24, photo detector 25 plus evaporation film 27 each. Film 27 is formed by cutting obliquely the optical fiber and polishing the cut surface into the flat surface, featuring the semitransparent mirror. Thus the optical signals transmit through or are reflected on film 27 to be turned into the transmission and reception signals.
JP15419578A 1978-12-15 1978-12-15 Two-way optical communication circuit Granted JPS5591243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15419578A JPS5591243A (en) 1978-12-15 1978-12-15 Two-way optical communication circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15419578A JPS5591243A (en) 1978-12-15 1978-12-15 Two-way optical communication circuit

Publications (2)

Publication Number Publication Date
JPS5591243A true JPS5591243A (en) 1980-07-10
JPS5742254B2 JPS5742254B2 (en) 1982-09-08

Family

ID=15578906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15419578A Granted JPS5591243A (en) 1978-12-15 1978-12-15 Two-way optical communication circuit

Country Status (1)

Country Link
JP (1) JPS5591243A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628538A (en) * 1979-08-17 1981-03-20 Nec Corp Optical multiplex transmission system
FR2512620A2 (en) * 1981-02-13 1983-03-11 France Etat CONCENTRATOR-DISTRIBUTOR OPTICAL MATRIX
JPS58146214U (en) * 1982-03-27 1983-10-01 第一電工株式会社 Photoelectric conversion device for optical communication
FR2549243A1 (en) * 1983-06-24 1985-01-18 Lyonnaise Transmiss Optiques Directional coupler with associated components for light waves.
JPS60153011A (en) * 1984-01-20 1985-08-12 Yamatake Honeywell Co Ltd Light emitting and photodetecting module
US4765706A (en) * 1986-07-29 1988-08-23 American Telephone And Telegraph Co., At&T Bell Labs. Optical communications system including a directional coupler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966204A (en) * 1972-10-31 1974-06-27
JPS50106140A (en) * 1974-01-28 1975-08-21
JPS5178257A (en) * 1974-11-29 1976-07-07 Siemens Ag
JPS51113505A (en) * 1975-03-31 1976-10-06 Nippon Serufuotsuku Kk Multiplex optical fiber communication equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966204A (en) * 1972-10-31 1974-06-27
JPS50106140A (en) * 1974-01-28 1975-08-21
JPS5178257A (en) * 1974-11-29 1976-07-07 Siemens Ag
JPS51113505A (en) * 1975-03-31 1976-10-06 Nippon Serufuotsuku Kk Multiplex optical fiber communication equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628538A (en) * 1979-08-17 1981-03-20 Nec Corp Optical multiplex transmission system
FR2512620A2 (en) * 1981-02-13 1983-03-11 France Etat CONCENTRATOR-DISTRIBUTOR OPTICAL MATRIX
JPS58146214U (en) * 1982-03-27 1983-10-01 第一電工株式会社 Photoelectric conversion device for optical communication
FR2549243A1 (en) * 1983-06-24 1985-01-18 Lyonnaise Transmiss Optiques Directional coupler with associated components for light waves.
JPS60153011A (en) * 1984-01-20 1985-08-12 Yamatake Honeywell Co Ltd Light emitting and photodetecting module
US4765706A (en) * 1986-07-29 1988-08-23 American Telephone And Telegraph Co., At&T Bell Labs. Optical communications system including a directional coupler

Also Published As

Publication number Publication date
JPS5742254B2 (en) 1982-09-08

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