JPS5675603A - Photobranching and-combining device with fan-shaped reflecting surface - Google Patents

Photobranching and-combining device with fan-shaped reflecting surface

Info

Publication number
JPS5675603A
JPS5675603A JP15267379A JP15267379A JPS5675603A JP S5675603 A JPS5675603 A JP S5675603A JP 15267379 A JP15267379 A JP 15267379A JP 15267379 A JP15267379 A JP 15267379A JP S5675603 A JPS5675603 A JP S5675603A
Authority
JP
Japan
Prior art keywords
reflecting surface
fan
transmission bodies
photobranching
light transmission
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
JP15267379A
Other languages
Japanese (ja)
Inventor
Shigetoki Sugimoto
Akira Ishikawa
Shigeo Matsushita
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15267379A priority Critical patent/JPS5675603A/en
Publication of JPS5675603A publication Critical patent/JPS5675603A/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
    • G02B6/2817—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 reflective elements to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To perform photobranching having versatlity with small insertion loss and to miniaturize and lighten the device by providing a fan-shaped reflecting surface whose central axis is the original point in the middle point of two cylindrical focusing light transmission bodies with 1/4 pitch length which are arrayed so that their center axes coincide with each other, and connecting plural optical fibers to both ends. CONSTITUTION:The two cylindrical focusing light transmission bodies 10 and 11 with 1/4 pitch length are arrayed so tht both center axes coincide with each other and the fan-shaped reflecting surface (for example, a fan-shaped reflecting surface with an angle of 90 deg.C) consisting of a dielectric multilayer film is provided to the middle point of these transmission bodies. Or reflecting body 21 with reflecting surface 20 attached to one surface of a glass plate whose refractive index almost equals to that of the center axes of light transmission bodies 10 and 11 may be inserted. The center positions of both light transmission bodies 10 and 11 are fixed respectively and optical fibers 30-33 are connected to both ends. The light propagated through optical fiber 30 is reflected by reflecting surface 20 and is incident to optical fiber 31 and at the same time a part of reflected light is incident to optical fiber 32. Thus, it makes possible to reduce insertion loss and perform versatile photobranching by the miniaturized and light-weight device.
JP15267379A 1979-11-26 1979-11-26 Photobranching and-combining device with fan-shaped reflecting surface Pending JPS5675603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15267379A JPS5675603A (en) 1979-11-26 1979-11-26 Photobranching and-combining device with fan-shaped reflecting surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15267379A JPS5675603A (en) 1979-11-26 1979-11-26 Photobranching and-combining device with fan-shaped reflecting surface

Publications (1)

Publication Number Publication Date
JPS5675603A true JPS5675603A (en) 1981-06-22

Family

ID=15545597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15267379A Pending JPS5675603A (en) 1979-11-26 1979-11-26 Photobranching and-combining device with fan-shaped reflecting surface

Country Status (1)

Country Link
JP (1) JPS5675603A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108036A (en) * 1994-03-14 1995-04-25 Olympus Optical Co Ltd Endoscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103751A (en) * 1977-02-22 1978-09-09 Mitsubishi Electric Corp Light distributor
JPS5473655A (en) * 1977-11-24 1979-06-13 Mitsubishi Electric Corp Photo circuit element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103751A (en) * 1977-02-22 1978-09-09 Mitsubishi Electric Corp Light distributor
JPS5473655A (en) * 1977-11-24 1979-06-13 Mitsubishi Electric Corp Photo circuit element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108036A (en) * 1994-03-14 1995-04-25 Olympus Optical Co Ltd Endoscope

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