JPS54126058A - Optical coupler - Google Patents

Optical coupler

Info

Publication number
JPS54126058A
JPS54126058A JP3291478A JP3291478A JPS54126058A JP S54126058 A JPS54126058 A JP S54126058A JP 3291478 A JP3291478 A JP 3291478A JP 3291478 A JP3291478 A JP 3291478A JP S54126058 A JPS54126058 A JP S54126058A
Authority
JP
Japan
Prior art keywords
waveguide
optical
terminal
resin
constitute
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
JP3291478A
Other languages
Japanese (ja)
Inventor
Ichiro Saito
Toyosaku Sato
Yasuaki Tamura
Nozomi Watanabe
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP3291478A priority Critical patent/JPS54126058A/en
Publication of JPS54126058A publication Critical patent/JPS54126058A/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
    • G02B6/2821—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 lateral coupling between contiguous fibres to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To provide a multi-position directive coupler, which is excellent in productivity and reliability, by laminating a photosensitive resin having a thickness of several 10 to 100 microns upon a flat substrate having a lower refractive index so that a pattern of the resin is formed to constitute the core of an optical waveguide. CONSTITUTION:A photosensitive resin is uniformly applied to a quartz substrate 1 and exposed to light so that it may be set. Then, the resin is etched to constitute a circuit, thus producing a multi-position directive coupler. The joint between a main waveguide 2 and an auxiliary waveguide 3 is common to joint optical fibers 6, 7, 8 and 9 so that a thermoset transparent resin 4 having a lower refractive index than the photosensitive resin covers the main waveguide as a whole and is set to constitute an optical coupler. The optical signals from the fiber 6 at a terminal T1 are transmitted through the waveguide 2 so that a portion appears at a terminal T2 whereas another portion appears at a terminal T3, while connecting the waveguide 3, until it is transmitted to the fiber 8, but it does not appear at a terminal T4. Thus, the optical coupler can enjoy excellent productivity, and the circuit construction can be optimized easily with high reliability so that the adaptability to the multi-position optical fiber can be improved.
JP3291478A 1978-03-24 1978-03-24 Optical coupler Pending JPS54126058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3291478A JPS54126058A (en) 1978-03-24 1978-03-24 Optical coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3291478A JPS54126058A (en) 1978-03-24 1978-03-24 Optical coupler

Publications (1)

Publication Number Publication Date
JPS54126058A true JPS54126058A (en) 1979-09-29

Family

ID=12372156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3291478A Pending JPS54126058A (en) 1978-03-24 1978-03-24 Optical coupler

Country Status (1)

Country Link
JP (1) JPS54126058A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810052A (en) * 1986-01-07 1989-03-07 Litton Systems, Inc Fiber optic bidirectional data bus tap
US4878727A (en) * 1988-06-30 1989-11-07 Battelle Memorial Institute Multimode channel waveguide optical coupling devices and methods

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856437A (en) * 1971-11-16 1973-08-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856437A (en) * 1971-11-16 1973-08-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810052A (en) * 1986-01-07 1989-03-07 Litton Systems, Inc Fiber optic bidirectional data bus tap
US4878727A (en) * 1988-06-30 1989-11-07 Battelle Memorial Institute Multimode channel waveguide optical coupling devices and methods

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