JPS5717907A - Blanching mixer for optical transmission - Google Patents

Blanching mixer for optical transmission

Info

Publication number
JPS5717907A
JPS5717907A JP9312480A JP9312480A JPS5717907A JP S5717907 A JPS5717907 A JP S5717907A JP 9312480 A JP9312480 A JP 9312480A JP 9312480 A JP9312480 A JP 9312480A JP S5717907 A JPS5717907 A JP S5717907A
Authority
JP
Japan
Prior art keywords
light
optical fibers
transmitted
optical
wavelengths
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
JP9312480A
Other languages
Japanese (ja)
Inventor
Tetsuya Yamazaki
Takashi Kishimoto
Koichi Nishizawa
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass 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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP9312480A priority Critical patent/JPS5717907A/en
Publication of JPS5717907A publication Critical patent/JPS5717907A/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
    • G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules

Abstract

PURPOSE:To make the device easier in assembling and campacting by connecting a group of optical fibers to a reflective film having different transmission wavelengths of the surface of a substrate distributed with refractive indexes in the derection of thickness and by preparing optical fibers forming a mixing optical path on the side of the substrate. CONSTITUTION:A refractive index of a transparent substrate 1 is formed such that the refractive index decreases from the surface 1A toward the rear surface 1B reverse proportional to square of thickness. Mixed light with wavelengths lambda1, lambda2 and lambda3 transmitted from optical fibers in an optical wave mixing optical path 3 enters a focusing type light transmitter lens 2, forms parallel beams to enter the substrate 1 and indident to a filter 21 obliquely, allowing only light with a wavelength lambda1 to be transmitted and to be focused to an optical fiber 31 with a lens 2. Reflected light reaches to filters 22 and 23 successively, thereby allowing light with wavelengths lambda2 and lambda3 to be focused to optical fibers 32 and 33. In contrast with this, when light having wavelengths lambda1-lambda3 are transmitted from the optical fibers 31-33, it is transmitted to a light wave mixing path 3. Through the process, the device is made easy in assembling and compacting.
JP9312480A 1980-07-08 1980-07-08 Blanching mixer for optical transmission Pending JPS5717907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9312480A JPS5717907A (en) 1980-07-08 1980-07-08 Blanching mixer for optical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9312480A JPS5717907A (en) 1980-07-08 1980-07-08 Blanching mixer for optical transmission

Publications (1)

Publication Number Publication Date
JPS5717907A true JPS5717907A (en) 1982-01-29

Family

ID=14073767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9312480A Pending JPS5717907A (en) 1980-07-08 1980-07-08 Blanching mixer for optical transmission

Country Status (1)

Country Link
JP (1) JPS5717907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539518A1 (en) * 1983-01-18 1984-07-20 Comp Generale Electricite Optical wavelength splitter, especially for a fibre-optic multiplex transmission system
US5583683A (en) * 1995-06-15 1996-12-10 Optical Corporation Of America Optical multiplexing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148545A (en) * 1978-05-15 1979-11-20 Matsushita Electric Ind Co Ltd Branching mixer for optical transmission
JPS5581308A (en) * 1978-12-14 1980-06-19 Matsushita Electric Ind Co Ltd Photo coupling device for wavelength multiplexing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148545A (en) * 1978-05-15 1979-11-20 Matsushita Electric Ind Co Ltd Branching mixer for optical transmission
JPS5581308A (en) * 1978-12-14 1980-06-19 Matsushita Electric Ind Co Ltd Photo coupling device for wavelength multiplexing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539518A1 (en) * 1983-01-18 1984-07-20 Comp Generale Electricite Optical wavelength splitter, especially for a fibre-optic multiplex transmission system
US5583683A (en) * 1995-06-15 1996-12-10 Optical Corporation Of America Optical multiplexing device

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