JPS5691202A - Optical branching filter - Google Patents

Optical branching filter

Info

Publication number
JPS5691202A
JPS5691202A JP16767279A JP16767279A JPS5691202A JP S5691202 A JPS5691202 A JP S5691202A JP 16767279 A JP16767279 A JP 16767279A JP 16767279 A JP16767279 A JP 16767279A JP S5691202 A JPS5691202 A JP S5691202A
Authority
JP
Japan
Prior art keywords
ridgelines
prism
sleeves
base
optical fiber
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
JP16767279A
Other languages
Japanese (ja)
Inventor
Satoru Todoroki
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 JP16767279A priority Critical patent/JPS5691202A/en
Publication of JPS5691202A publication Critical patent/JPS5691202A/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 obtain a simple optical branching filter by providing a regular 3N (N>1)-hedral pyramidal prism of which the diametrally opposing ridgelines are intersecting orthogonally at the peak, a holder which brings into contact with said prism at its base and has sleeves in the position corresponding to the points of intersection of the plane parallel to said base and the ridgelines, and optical fiber cables inserted into said sleeves. CONSTITUTION:With a regular 3N-hedral pyramidal prism 1 of which the diametrally opposing ridgelines intersect mutually orthogonally, for example, in the case of N=2, sleeves 31-36 are provided to a holder 2 made of a metal in contact with the base of said prism, in the positions opposing to the points of intersection of the plane parallel to the base of the prism 1 and the ridgelines. Optical fiber cables 41-46 are inserted into these sleeves 31-36, and the entire part is held covered with an opaque resin. The light signal P10 incident from, for example, the optical fiber cable 41 is split to the positions B1 and C1 corresponding to the A1 on two sets of the mutually orthogonally intersecting ridgelines at the point A1 of intersection of the ridgelines, and these are outputted as light signals P11 and P12 from the optical fiber cables 43 and 45. The same holds true of N>2. Thereby, the simple optical branching device is obtained.
JP16767279A 1979-12-25 1979-12-25 Optical branching filter Pending JPS5691202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16767279A JPS5691202A (en) 1979-12-25 1979-12-25 Optical branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16767279A JPS5691202A (en) 1979-12-25 1979-12-25 Optical branching filter

Publications (1)

Publication Number Publication Date
JPS5691202A true JPS5691202A (en) 1981-07-24

Family

ID=15854072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16767279A Pending JPS5691202A (en) 1979-12-25 1979-12-25 Optical branching filter

Country Status (1)

Country Link
JP (1) JPS5691202A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851176B4 (en) * 1998-11-06 2010-10-14 Carl Zeiss Meditec Ag Arrangement for determining radii of curvature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851176B4 (en) * 1998-11-06 2010-10-14 Carl Zeiss Meditec Ag Arrangement for determining radii of curvature

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