JPS5768940A - Mulitiplex transmission system - Google Patents

Mulitiplex transmission system

Info

Publication number
JPS5768940A
JPS5768940A JP55144318A JP14431880A JPS5768940A JP S5768940 A JPS5768940 A JP S5768940A JP 55144318 A JP55144318 A JP 55144318A JP 14431880 A JP14431880 A JP 14431880A JP S5768940 A JPS5768940 A JP S5768940A
Authority
JP
Japan
Prior art keywords
light
wavelength
fiber
axis
film
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
JP55144318A
Other languages
Japanese (ja)
Inventor
Hiroyuki Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55144318A priority Critical patent/JPS5768940A/en
Publication of JPS5768940A publication Critical patent/JPS5768940A/en
Pending 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

Abstract

PURPOSE:To achieve optical wavelength multiplex transmission with small size and low cost, by forming the shape of one end of optical fiber with solpe, providing an interference filter film on a sloped plane, and providing light emission an d photodetection means of the wavelength of light fully reflected and transmiited on and through this film. CONSTITUTION:Both ends of an optical fiber 17 show a shape of 45 deg. slope to optical fiber axies, and the surface is polished. Interferece films 16, 20 are provided on the sloped plane, the light in wavelength lambda1 is fully reflected and the light in wavelength lambda2 is transmitted. A light emitting element 14 producing the light in wavelength lambda1 is provided orthogonally to the axis of the fiber 17 and a light emitting element 15 producing the light in wavelength lambda2 is provided in parallel with the axis of the fiber 17. At the reception section, a photodetector 18 receiving the light in wavelength lambda1 fully reflected on the film 20 is provided orthogonally to the axis of the fiber 17, and a photodetector 19 receiving the light in wavelength lambda2 transmitting the film 20 is provided in parallel with the axis of the fiber 17.
JP55144318A 1980-10-17 1980-10-17 Mulitiplex transmission system Pending JPS5768940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144318A JPS5768940A (en) 1980-10-17 1980-10-17 Mulitiplex transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144318A JPS5768940A (en) 1980-10-17 1980-10-17 Mulitiplex transmission system

Publications (1)

Publication Number Publication Date
JPS5768940A true JPS5768940A (en) 1982-04-27

Family

ID=15359295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144318A Pending JPS5768940A (en) 1980-10-17 1980-10-17 Mulitiplex transmission system

Country Status (1)

Country Link
JP (1) JPS5768940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60132052U (en) * 1984-02-15 1985-09-04 本田技研工業株式会社 Optical multiplex transmission equipment
US6178039B1 (en) 1998-02-25 2001-01-23 Nec Corporation Light source module and an optical amplifier using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60132052U (en) * 1984-02-15 1985-09-04 本田技研工業株式会社 Optical multiplex transmission equipment
US6178039B1 (en) 1998-02-25 2001-01-23 Nec Corporation Light source module and an optical amplifier using the same

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