JPS54148545A - Branching mixer for optical transmission - Google Patents

Branching mixer for optical transmission

Info

Publication number
JPS54148545A
JPS54148545A JP5806178A JP5806178A JPS54148545A JP S54148545 A JPS54148545 A JP S54148545A JP 5806178 A JP5806178 A JP 5806178A JP 5806178 A JP5806178 A JP 5806178A JP S54148545 A JPS54148545 A JP S54148545A
Authority
JP
Japan
Prior art keywords
light
interference filter
fiber lens
transmits
face
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
JP5806178A
Other languages
Japanese (ja)
Inventor
Noboru Kurata
Takashi Tousen
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5806178A priority Critical patent/JPS54148545A/en
Publication of JPS54148545A publication Critical patent/JPS54148545A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To enhance the accuracy of a branching mixer for optical transmission and make its constitution simple by cutting a focusing type fiber lens to about half in parallel to its central axis and providing interference filters on the cut faces thereof at each 1/2 period length. CONSTITUTION:When the mixed light composed of three mutually different wavelengths lambda1, lambda2, lambda3 is entered from the end face of an optical fiber lens 1 to the incident end face 22 of a deformed focusing type fiber lens 16, the mixed light is bent of its optical path to sine wave form and focuses at the position 17 of nearly 1/4 period length from the incident end face 22 and at the same time enters an interference filter 13. Here, only the light of the wavelength lambda1 transmits through the interference filter 13 and emits to the outside of the deformed focusing type fiber lens 16. Following to this, only the light of the wavelength lambda2 transmits through an interference filter 14 is the position 18 of a 1/2 period length from the position 17. Next, the light of the wavelength lambda3 transmits through an interference filter 15 in the position 19. In this way, the simple branching mixer of high accuracy is obtainable.
JP5806178A 1978-05-15 1978-05-15 Branching mixer for optical transmission Pending JPS54148545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5806178A JPS54148545A (en) 1978-05-15 1978-05-15 Branching mixer for optical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5806178A JPS54148545A (en) 1978-05-15 1978-05-15 Branching mixer for optical transmission

Publications (1)

Publication Number Publication Date
JPS54148545A true JPS54148545A (en) 1979-11-20

Family

ID=13073385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5806178A Pending JPS54148545A (en) 1978-05-15 1978-05-15 Branching mixer for optical transmission

Country Status (1)

Country Link
JP (1) JPS54148545A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717907A (en) * 1980-07-08 1982-01-29 Nippon Sheet Glass Co Ltd Blanching mixer for optical transmission
JPS5868713A (en) * 1981-10-21 1983-04-23 Nec Corp Optical demultiplexing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717907A (en) * 1980-07-08 1982-01-29 Nippon Sheet Glass Co Ltd Blanching mixer for optical transmission
JPS5868713A (en) * 1981-10-21 1983-04-23 Nec Corp Optical demultiplexing circuit

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