JPS54146644A - Light distributor - Google Patents

Light distributor

Info

Publication number
JPS54146644A
JPS54146644A JP5514478A JP5514478A JPS54146644A JP S54146644 A JPS54146644 A JP S54146644A JP 5514478 A JP5514478 A JP 5514478A JP 5514478 A JP5514478 A JP 5514478A JP S54146644 A JPS54146644 A JP S54146644A
Authority
JP
Japan
Prior art keywords
light
grating
propagated
reflected
fibers
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
JP5514478A
Other languages
Japanese (ja)
Inventor
Takeji Fujiwara
Koichi Hamanaka
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 JP5514478A priority Critical patent/JPS54146644A/en
Publication of JPS54146644A publication Critical patent/JPS54146644A/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
    • G02B6/2848—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 having refractive means, e.g. imaging elements between light guides as splitting, branching and/or combining devices, e.g. lenses, holograms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:In photo-communication, to use a grating half-mirror thereby to increase the number of distribution of luminous beams. CONSTITUTION:Light emitted from a fiber 2, 1 is collimated by means of a lens 2, 8 of a square refractive index distribution type, and a part of light is reflected and another part is permeated by a grating half mirror disposed at a suitable angle with respect to the central axis of the lens 2.8. The reflected light is distributed by the grating in three components, that is, zero, plus primary, and minus primary reflected diffraction lights, and throttled by lenses 2.9, 2,10 and 2.11 of a square refractive distribution type, arranged at an angle obtained beforehand by the diffraction grating equation by use of value of the propagated light wevelength and the grating interval, and bonded and propagated to the fibers 2.2, 2.3 and 2.4. The permeated light is similarly distributed in three components,and bonded and propagated to the fibers 2.5, 2.6 and 2.7.
JP5514478A 1978-05-09 1978-05-09 Light distributor Pending JPS54146644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5514478A JPS54146644A (en) 1978-05-09 1978-05-09 Light distributor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5514478A JPS54146644A (en) 1978-05-09 1978-05-09 Light distributor

Publications (1)

Publication Number Publication Date
JPS54146644A true JPS54146644A (en) 1979-11-16

Family

ID=12990566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5514478A Pending JPS54146644A (en) 1978-05-09 1978-05-09 Light distributor

Country Status (1)

Country Link
JP (1) JPS54146644A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153032A (en) * 1978-05-22 1979-12-01 Seiko Epson Corp Ink jet printer
US4362359A (en) * 1979-04-21 1982-12-07 U.S. Philips Corporation Coupling device for coupling signals into and out of a transmission glass-fiber
US4522462A (en) * 1983-05-27 1985-06-11 The Mitre Corporation Fiber optic bidirectional wavelength division multiplexer/demultiplexer with total and/or partial redundancy
EP1124148A1 (en) * 1995-03-15 2001-08-16 Agilent Technologies, Inc. Apparatus for altering a light signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153032A (en) * 1978-05-22 1979-12-01 Seiko Epson Corp Ink jet printer
US4362359A (en) * 1979-04-21 1982-12-07 U.S. Philips Corporation Coupling device for coupling signals into and out of a transmission glass-fiber
US4522462A (en) * 1983-05-27 1985-06-11 The Mitre Corporation Fiber optic bidirectional wavelength division multiplexer/demultiplexer with total and/or partial redundancy
EP1124148A1 (en) * 1995-03-15 2001-08-16 Agilent Technologies, Inc. Apparatus for altering a light signal

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