JPS5685701A - Optical branching filter - Google Patents

Optical branching filter

Info

Publication number
JPS5685701A
JPS5685701A JP16249679A JP16249679A JPS5685701A JP S5685701 A JPS5685701 A JP S5685701A JP 16249679 A JP16249679 A JP 16249679A JP 16249679 A JP16249679 A JP 16249679A JP S5685701 A JPS5685701 A JP S5685701A
Authority
JP
Japan
Prior art keywords
optical
spherical lens
branching filter
films
systems
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
JP16249679A
Other languages
Japanese (ja)
Inventor
Shigefumi Masuda
Noboru Tsuneyo
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16249679A priority Critical patent/JPS5685701A/en
Publication of JPS5685701A publication Critical patent/JPS5685701A/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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package

Landscapes

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

Abstract

PURPOSE:To make an optical branching filter higher in accuracy, easier to handle and smaller in size by providing multilayered interference films in the optical paths within two spherical lens optical systems and forming the spherical lens optical systems into one piece. CONSTITUTION:Spherical lens systems 17 and 17' consisting in enclosing spherical lenses 14 and 14' respectively with transparent optical materials 15, 16, and 15', 16' ae formed in one body by interposing multilayered interference films 18 between both, thereby constituting an optical branching filter 13. If the mixed waves 2 of light signal are entered the end face 19 of thus constituted optical branching filter 13, the mixed waves 2 refract within the spherical lens optical system 17 and arrive at the films 18, where they are branched to transmitted light 6 and reflected light 9 which then refract respectively in the spherical lens optical systems 17' and 17, emit from the end faces 20 and 19 and enter optical fibers 8 and 12. In this way, the similar effect to that of conventional apherical lens optical systems is obtainable except the formation of the films 18; even more, the improvement in accuracy and miniaturization are achieved because no adjusting works are required.
JP16249679A 1979-12-14 1979-12-14 Optical branching filter Pending JPS5685701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16249679A JPS5685701A (en) 1979-12-14 1979-12-14 Optical branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16249679A JPS5685701A (en) 1979-12-14 1979-12-14 Optical branching filter

Publications (1)

Publication Number Publication Date
JPS5685701A true JPS5685701A (en) 1981-07-13

Family

ID=15755718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16249679A Pending JPS5685701A (en) 1979-12-14 1979-12-14 Optical branching filter

Country Status (1)

Country Link
JP (1) JPS5685701A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168026A (en) * 1982-03-29 1983-10-04 Agency Of Ind Science & Technol Embedded type spherical lens having distributed refractive index
JPS601119U (en) * 1983-06-15 1985-01-07 日立電線株式会社 optical demultiplexer
JPS6010209A (en) * 1983-06-29 1985-01-19 Matsushita Electric Ind Co Ltd Optical multiplexer and demultiplexer
FR2561787A1 (en) * 1984-02-24 1985-09-27 Sopelem DEVICE FOR COUPLING WAVEGUIDES FOR WAVELENGTH DIVISION MULTIPLEXING OR DEMULTIPLEXING
JPS6275606A (en) * 1985-09-30 1987-04-07 Shimadzu Corp Optical multiplexer/demultiplexer
JPS63120209U (en) * 1987-01-30 1988-08-03
US4824200A (en) * 1986-02-06 1989-04-25 Fujitsu Limited Optical branching filter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168026A (en) * 1982-03-29 1983-10-04 Agency Of Ind Science & Technol Embedded type spherical lens having distributed refractive index
JPS6336643B2 (en) * 1982-03-29 1988-07-21 Kogyo Gijutsuin
JPS601119U (en) * 1983-06-15 1985-01-07 日立電線株式会社 optical demultiplexer
JPS6010209A (en) * 1983-06-29 1985-01-19 Matsushita Electric Ind Co Ltd Optical multiplexer and demultiplexer
FR2561787A1 (en) * 1984-02-24 1985-09-27 Sopelem DEVICE FOR COUPLING WAVEGUIDES FOR WAVELENGTH DIVISION MULTIPLEXING OR DEMULTIPLEXING
JPS6275606A (en) * 1985-09-30 1987-04-07 Shimadzu Corp Optical multiplexer/demultiplexer
US4824200A (en) * 1986-02-06 1989-04-25 Fujitsu Limited Optical branching filter
JPS63120209U (en) * 1987-01-30 1988-08-03

Similar Documents

Publication Publication Date Title
CA2175886A1 (en) Optical Wavelength Division Multiplexer Device
JPS5685701A (en) Optical branching filter
GB2005044A (en) Improvements in or relating to optical systems
JPS53135652A (en) Optical branching element
JPS566203A (en) Photoswitch
JPS57158604A (en) Light beam converting adaptor
JPS6446707A (en) Optical path switching device
JPS5714806A (en) Wavelength multiplex optical transmitting and receiving distributor
JPS5722210A (en) Optical device
JPS5619020A (en) Endscope optical system
JPS578407A (en) Reflector
JPS57158804A (en) Optical path splitting prism and its production
JPS55113020A (en) Light isolator
JPS5677805A (en) Light branching-coupling element
JPS5492281A (en) Light attenuator
JPS533349A (en) Devider for optical fiber and photo coupler
JPS5529841A (en) Light propagation device using optical fiber
JPS5597752A (en) Photo transmitter
JPS575006A (en) Optical branching filter
JPS5518618A (en) Photo distributor for optical fiber
JPS5627119A (en) Finder device of single lens reflex camera
JPS57171314A (en) Optical branching and coupling circuit
JPS5521077A (en) Photo switch
JPS5647015A (en) Coupling method of light emitting element and optical fiber
JPS57198425A (en) Optical branching and coupling circuit