JPS57198426A - Optical branching and coupling device - Google Patents

Optical branching and coupling device

Info

Publication number
JPS57198426A
JPS57198426A JP8405781A JP8405781A JPS57198426A JP S57198426 A JPS57198426 A JP S57198426A JP 8405781 A JP8405781 A JP 8405781A JP 8405781 A JP8405781 A JP 8405781A JP S57198426 A JPS57198426 A JP S57198426A
Authority
JP
Japan
Prior art keywords
prismlike
reflector
optical fiber
optical fibers
lens
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
JP8405781A
Other languages
Japanese (ja)
Inventor
Teruhito Matsui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8405781A priority Critical patent/JPS57198426A/en
Publication of JPS57198426A publication Critical patent/JPS57198426A/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 prevent optical fibers from mode variation even if a by-pass level is changed by combining a prismlike reflector cut at an angle against ridgelines formed by 2 intersecting sides with 3 intersecting optical fibers. CONSTITUTION:An intersection point (c) made by ridgelines formed by 2 intersecting sides 8a, 8b of a prismlike reflector 8 and a surface cut at an angle theta is located on an optical axises of optical fibers 1, 2, 3. Light projected from the optical fiber 2 is made to parallel beams 9 through a lens 5, a part of the parallel beams is reflected by the reflecting film surface 8a of the prismlike reflector 8 and coupled and transmitted to the optical fiber 1 through a lens 4 and the nonreflected light is coupled with the optical fiber 3 through a lens 6. In the same manner, light projected from the optical fiber 3 is coupled and transmitted to the optical fibers 1 and 2. The light coupling rate can be adjusted to the optimum value by changing the angle theta of the prismlike reflector 8.
JP8405781A 1981-06-01 1981-06-01 Optical branching and coupling device Pending JPS57198426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8405781A JPS57198426A (en) 1981-06-01 1981-06-01 Optical branching and coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8405781A JPS57198426A (en) 1981-06-01 1981-06-01 Optical branching and coupling device

Publications (1)

Publication Number Publication Date
JPS57198426A true JPS57198426A (en) 1982-12-06

Family

ID=13819860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8405781A Pending JPS57198426A (en) 1981-06-01 1981-06-01 Optical branching and coupling device

Country Status (1)

Country Link
JP (1) JPS57198426A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1320975C (en) * 2005-03-24 2007-06-13 上海交通大学 Internal liquid-flushing cluster shaping electrode for electrospark machining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1320975C (en) * 2005-03-24 2007-06-13 上海交通大学 Internal liquid-flushing cluster shaping electrode for electrospark machining

Similar Documents

Publication Publication Date Title
JPS5495260A (en) Optical branching and mixing device
JPS57198426A (en) Optical branching and coupling device
JPS5685701A (en) Optical branching filter
JPS5515184A (en) Photo coupler
JPS56161504A (en) Parallel branching device of light
JPS566203A (en) Photoswitch
JPS5420750A (en) Photo coupler
JPS57198425A (en) Optical branching and coupling circuit
JPS55144567A (en) Optical fiber device for light wave range finder
JPS5785017A (en) Optical distributor
JPS578407A (en) Reflector
JPS57185401A (en) Image forming element
JPS5529841A (en) Light propagation device using optical fiber
JPS5756813A (en) Vaiable optical branching circuit for single mode fiber
JPS5621107A (en) Light isolator coupling device
JPS533349A (en) Devider for optical fiber and photo coupler
JPS57171314A (en) Optical branching and coupling circuit
JPS6446707A (en) Optical path switching device
JPS55142303A (en) Photo switch
JPS5492281A (en) Light attenuator
JPS5794740A (en) Transmission type screen
JPS57167005A (en) Polarization separator
JPS55164803A (en) Coupling method of semiconductor laser and optical fiber
JPS5355040A (en) Optical fiber branching device
JPS57121285A (en) Light coupling device