JPS5635103A - Optical fiber branching filter - Google Patents

Optical fiber branching filter

Info

Publication number
JPS5635103A
JPS5635103A JP11115479A JP11115479A JPS5635103A JP S5635103 A JPS5635103 A JP S5635103A JP 11115479 A JP11115479 A JP 11115479A JP 11115479 A JP11115479 A JP 11115479A JP S5635103 A JPS5635103 A JP S5635103A
Authority
JP
Japan
Prior art keywords
fiber
dielectric films
multilayer dielectric
deposited
microprism
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
JP11115479A
Other languages
Japanese (ja)
Inventor
Eizo Miyauchi
Seiji Miyazaki
Shigefumi Masuda
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 JP11115479A priority Critical patent/JPS5635103A/en
Publication of JPS5635103A publication Critical patent/JPS5635103A/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
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To make the construction of a branching function part simpler and smaller by constituting an optical fiber branching filter with fibers and a microprism of about the same size as the core diameter of the fibers. CONSTITUTION:When the light waves of wavelengths lambda1 and lambda2 are emitted from a fiber 1, the light of the wavelength lambda1 is reflected by the multilayer dielectric films 5a evaporation deposited on the slope A of a microprism 4, but the light of the wavelength lambda2 transmits therethrough. The light waves of the wavelength lambda2 having transmitted through the multilayer dielectric films 5a transmit through the multilayer dielectric films 5c evaporation deposited on the end face of a fiber 2 and are coupled to the fiber 2. The light waves of the wavelength lambda1 having been reflected by the multilayer dielectric films 5a deposited on the slope of the microprism 4 are again reflected by the multilayer dielectric films 5b deposited on the slope B of the microprism 4, transmit through the multilayer dielectric films 6 deposited on the end face of a fiber 3 and are coupled to the fiber 3. In this way, the construction of the branching function part is made simpler and smaller.
JP11115479A 1979-08-31 1979-08-31 Optical fiber branching filter Pending JPS5635103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11115479A JPS5635103A (en) 1979-08-31 1979-08-31 Optical fiber branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11115479A JPS5635103A (en) 1979-08-31 1979-08-31 Optical fiber branching filter

Publications (1)

Publication Number Publication Date
JPS5635103A true JPS5635103A (en) 1981-04-07

Family

ID=14553828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11115479A Pending JPS5635103A (en) 1979-08-31 1979-08-31 Optical fiber branching filter

Country Status (1)

Country Link
JP (1) JPS5635103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014191188A (en) * 2013-03-27 2014-10-06 Mitsubishi Electric Corp Light transmission apparatus and light receiving apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130504A (en) * 1979-03-30 1980-10-09 Fujitsu Ltd Optical branching circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130504A (en) * 1979-03-30 1980-10-09 Fujitsu Ltd Optical branching circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014191188A (en) * 2013-03-27 2014-10-06 Mitsubishi Electric Corp Light transmission apparatus and light receiving apparatus

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