JPS6425105A - Optical multiplexing/branching coupler for optical fiber circuit - Google Patents

Optical multiplexing/branching coupler for optical fiber circuit

Info

Publication number
JPS6425105A
JPS6425105A JP18124387A JP18124387A JPS6425105A JP S6425105 A JPS6425105 A JP S6425105A JP 18124387 A JP18124387 A JP 18124387A JP 18124387 A JP18124387 A JP 18124387A JP S6425105 A JPS6425105 A JP S6425105A
Authority
JP
Japan
Prior art keywords
light
ports
specific
optical
pieces
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
JP18124387A
Other languages
Japanese (ja)
Inventor
Shinichi Nara
Satoshi Hatano
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP18124387A priority Critical patent/JPS6425105A/en
Publication of JPS6425105A publication Critical patent/JPS6425105A/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
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
    • 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
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To house many terminals by forming an optical local area circuit network of a star type by using an optical coupler having zero or nearly zero transmission coefft. of light between specific terminals. CONSTITUTION:An another waveguide 43 is installed between plural optical fibers facing each other, for example, upper photometric sides 2-1, 2-2-2-5, and lower photometric sides 3-1, 3-2-3-5 or waveguides facing each other, for example, 41-1, 41-2-41-5 on the upper side and 42-1, 42-2-42-5 on the lower side. At least one among a light shielding object, lens, prism and diagonal gap are provided in the position where the light between the specific input and output is prevented within these light guides. Part of the light generated from the specific port among N-pieces of the ports on the input side is thereby prevented from arriving to the specific port on the output side and arrives at the port on the other output side. The light generated from the other N-1 pieces of the ports on the input side arrives at N pieces of the ports on the output side. Since the transmission coefft. between the specific ports is decreased to zero or nearly zero, the optical local circuit network of the star type can be used.
JP18124387A 1987-07-22 1987-07-22 Optical multiplexing/branching coupler for optical fiber circuit Pending JPS6425105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18124387A JPS6425105A (en) 1987-07-22 1987-07-22 Optical multiplexing/branching coupler for optical fiber circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18124387A JPS6425105A (en) 1987-07-22 1987-07-22 Optical multiplexing/branching coupler for optical fiber circuit

Publications (1)

Publication Number Publication Date
JPS6425105A true JPS6425105A (en) 1989-01-27

Family

ID=16097298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18124387A Pending JPS6425105A (en) 1987-07-22 1987-07-22 Optical multiplexing/branching coupler for optical fiber circuit

Country Status (1)

Country Link
JP (1) JPS6425105A (en)

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