JPS56137303A - Optical branching filter - Google Patents

Optical branching filter

Info

Publication number
JPS56137303A
JPS56137303A JP4131780A JP4131780A JPS56137303A JP S56137303 A JPS56137303 A JP S56137303A JP 4131780 A JP4131780 A JP 4131780A JP 4131780 A JP4131780 A JP 4131780A JP S56137303 A JPS56137303 A JP S56137303A
Authority
JP
Japan
Prior art keywords
rectangular prisms
filters
multilayer film
mutually different
oblique angle
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
JP4131780A
Other languages
Japanese (ja)
Inventor
Masahiro Nunoshita
Kenichi Kuroda
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 JP4131780A priority Critical patent/JPS56137303A/en
Publication of JPS56137303A publication Critical patent/JPS56137303A/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
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G02B6/29365—Serial cascade of filters or filtering operations, e.g. for a large number of channels in a multireflection configuration, i.e. beam following a zigzag path between filters or filtering operations
    • G02B6/29367—Zigzag path within a transparent optical block, e.g. filter deposited on an etalon, glass plate, wedge acting as a stable spacer
    • 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
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE:To make constitution simple and performance high by using a prism block consisting of two rectangular prisms formed with multilayer film light band filters on their joining surfaces. CONSTITUTION:Main rectangular prisms 51-53 have a 45 deg. oblique angle, and are formed respectively with multilayer film light band filters 31-33 of mutually different reflection characteristics with respect to wavelengths on their slopes. Auxiliary rectangular prisms 61-63 which consist of the same material as that of the main rectangular prisms and have a 45 deg. oblique angle are combined in a pair with the main rectangular prisms. If these are installed as shown in the figure, and when an optical connector plug is inserted into a receptable 10, it results in that the light of mutually different wavelengths is selectively reflected and transmitted by the filters 31-33 and is branched into the respective receptacle 11-14. Here, narrow band optical fibers are shown by 71-74.
JP4131780A 1980-03-31 1980-03-31 Optical branching filter Pending JPS56137303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4131780A JPS56137303A (en) 1980-03-31 1980-03-31 Optical branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4131780A JPS56137303A (en) 1980-03-31 1980-03-31 Optical branching filter

Publications (1)

Publication Number Publication Date
JPS56137303A true JPS56137303A (en) 1981-10-27

Family

ID=12605126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4131780A Pending JPS56137303A (en) 1980-03-31 1980-03-31 Optical branching filter

Country Status (1)

Country Link
JP (1) JPS56137303A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701012A (en) * 1984-04-12 1987-10-20 Standard Elektrik Lorenz Optical multiplexer/demultiplexer
JPS63106708A (en) * 1986-10-24 1988-05-11 Oki Electric Ind Co Ltd Series connection system for wavelength multiplex optical signal
WO2003012510A1 (en) * 2001-07-27 2003-02-13 Gigabit Optics Corporation System and method for optical multiplexing and/or demultiplexing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701012A (en) * 1984-04-12 1987-10-20 Standard Elektrik Lorenz Optical multiplexer/demultiplexer
JPS63106708A (en) * 1986-10-24 1988-05-11 Oki Electric Ind Co Ltd Series connection system for wavelength multiplex optical signal
WO2003012510A1 (en) * 2001-07-27 2003-02-13 Gigabit Optics Corporation System and method for optical multiplexing and/or demultiplexing
US6750969B2 (en) 2001-07-27 2004-06-15 Gigabit Optics Corporation System and method for optical multiplexing and/or demultiplexing
US6781693B2 (en) 2001-07-27 2004-08-24 Gigabit Optics Corporation System and method for optical multiplexing and/or demultiplexing
US6844932B2 (en) 2001-07-27 2005-01-18 Oplink Communications, Inc. System and method for optical multiplexing and/or demultiplexing
US6847450B2 (en) 2001-07-27 2005-01-25 Oplink Communications, Inc. System and method for optical multiplexing and/or demultiplexing
US6914676B2 (en) 2001-07-27 2005-07-05 Oplink Communications, Inc. System and method for optical multiplexing and/or demultiplexing

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