JPS5734501A - Signal branching system in wavelength multiplex optical communication - Google Patents

Signal branching system in wavelength multiplex optical communication

Info

Publication number
JPS5734501A
JPS5734501A JP10962880A JP10962880A JPS5734501A JP S5734501 A JPS5734501 A JP S5734501A JP 10962880 A JP10962880 A JP 10962880A JP 10962880 A JP10962880 A JP 10962880A JP S5734501 A JPS5734501 A JP S5734501A
Authority
JP
Japan
Prior art keywords
light
incident
wavelength multiplex
diffraction grating
optical communication
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
JP10962880A
Other languages
Japanese (ja)
Inventor
Takumi Tomijima
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP10962880A priority Critical patent/JPS5734501A/en
Publication of JPS5734501A publication Critical patent/JPS5734501A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/2931—Diffractive element operating in reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM

Abstract

PURPOSE:To increase the capacity of optical transmission and to lower a cost by providing an optical splitter in the image forming position of the specific wavelength of the dispersed light of the wavelength multiplex light incident within the incident plane inclusive of the grooves of a diffraction grating. CONSTITUTION:The wavelength multiplex light propagating in a main fiber 7 is made to parallel light by a collimator 3 which is made incident to a diffraction grating 1 within the incident plane inclusive of its grooves. Spectral images 11-13 dispersed on a focal plane 10 are formed by a telemeter 4. A translucent reflecting mirror is provided in the position of its specific wavelength 13, and the branched light is conducted to a branch fiber 12. The remaining light is made again to parallel light by a collimator 5 which is conducted to a main fiber 8 via the 2nd diffraction grating 2 and a telemeter 6. Thereby, the capacity of transmission is increased and a cost is lowered.
JP10962880A 1980-08-09 1980-08-09 Signal branching system in wavelength multiplex optical communication Pending JPS5734501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10962880A JPS5734501A (en) 1980-08-09 1980-08-09 Signal branching system in wavelength multiplex optical communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10962880A JPS5734501A (en) 1980-08-09 1980-08-09 Signal branching system in wavelength multiplex optical communication

Publications (1)

Publication Number Publication Date
JPS5734501A true JPS5734501A (en) 1982-02-24

Family

ID=14515095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10962880A Pending JPS5734501A (en) 1980-08-09 1980-08-09 Signal branching system in wavelength multiplex optical communication

Country Status (1)

Country Link
JP (1) JPS5734501A (en)

Similar Documents

Publication Publication Date Title
EP0390416A3 (en) Optical multiplexer/demultiplexer using focusing bragg reflectors
WO1999031532A3 (en) Integrated bi-directional axial gradient refractive index/diffraction grating wavelength division multiplexer
CA2329727A1 (en) Bidirectional optical wavelength multiplexer and demultiplexer
JPS55105211A (en) Photo branching and coupling device
JPS5660401A (en) Optical branching filter
EP0153722A3 (en) Hybrid optical wavelength division multiplexer-demultiplexer
JPS5734501A (en) Signal branching system in wavelength multiplex optical communication
JPS57142608A (en) Optical coupler
JPS5529824A (en) Photo branching filter
JPS5714806A (en) Wavelength multiplex optical transmitting and receiving distributor
JPS56161504A (en) Parallel branching device of light
JPS5767910A (en) Optical synthesizing and branching device
JPS5640804A (en) Optical branching filter
JPS5723906A (en) Broad-band optical branching filter
JPS5488136A (en) Optical branching filter for optical fibers
ES478968A1 (en) Photometric cell
JPS5389750A (en) Photo branching coupler
JPS56110908A (en) Wave combination and distribution method of optical signal for optical multiplex communication
JPS6423221A (en) Multiplexing/demultiplexing unit and multiplexer/ demultiplexer for coherent light communication
JPS5793312A (en) Optical communication multichannel branching filter
JPS56137302A (en) Optical wavelength branching device
JPS61223810A (en) Optical wavelength multiplexer/demultiplexer
JPS57198423A (en) Planar type optical demultiplexer and multiplexer
JPS57212414A (en) Wavelength selection type optical distributor
JPS5619004A (en) Photo branching circuit