CA2211644A1 - Optical demultiplexor - Google Patents

Optical demultiplexor

Info

Publication number
CA2211644A1
CA2211644A1 CA 2211644 CA2211644A CA2211644A1 CA 2211644 A1 CA2211644 A1 CA 2211644A1 CA 2211644 CA2211644 CA 2211644 CA 2211644 A CA2211644 A CA 2211644A CA 2211644 A1 CA2211644 A1 CA 2211644A1
Authority
CA
Canada
Prior art keywords
filter
input end
different predetermined
optical
wavelength
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.)
Granted
Application number
CA 2211644
Other languages
French (fr)
Other versions
CA2211644C (en
Inventor
Gary Stephen Duck
Calvin Si
Neil Teitelbaum
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.)
Lumentum Ottawa Inc
Original Assignee
JDS Fitel Inc
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 JDS Fitel Inc filed Critical JDS Fitel Inc
Priority to CA 2211644 priority Critical patent/CA2211644C/en
Publication of CA2211644A1 publication Critical patent/CA2211644A1/en
Application granted granted Critical
Publication of CA2211644C publication Critical patent/CA2211644C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B6/29379—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 characterised by the function or use of the complete device
    • G02B6/2938—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 characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

An optical demultiplexor utilizes a single optical interference filter disposed between an input end and an output end of the device. The filter is preferably housed within a cavity in a glass block having an upstanding input end, endwall. The optical filter is a wavelength selective means having a wavelength characteristic dependent upon an angle of incidence.
The device has a plurality of reflective surfaces disposed at the input end for reflecting light reflected from the filter, back to the filter at different predetermined angles. Each different predetermined incident angle allows a different predetermined wavelength of light to pass through the filter to an output end being spatially separated from other predetermined wavelengths that pass through the filter. The reflective surfaces are preferably formed in the upstanding endwall of the glass block. Sixteen channels can be separated by thisdemultiplexor.
CA 2211644 1997-07-28 1997-07-28 Optical demultiplexor Expired - Fee Related CA2211644C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2211644 CA2211644C (en) 1997-07-28 1997-07-28 Optical demultiplexor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2211644 CA2211644C (en) 1997-07-28 1997-07-28 Optical demultiplexor

Publications (2)

Publication Number Publication Date
CA2211644A1 true CA2211644A1 (en) 1999-01-28
CA2211644C CA2211644C (en) 2001-07-10

Family

ID=4161127

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2211644 Expired - Fee Related CA2211644C (en) 1997-07-28 1997-07-28 Optical demultiplexor

Country Status (1)

Country Link
CA (1) CA2211644C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112558315A (en) * 2020-11-23 2021-03-26 华南师范大学 Multi-path light splitting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112558315A (en) * 2020-11-23 2021-03-26 华南师范大学 Multi-path light splitting system

Also Published As

Publication number Publication date
CA2211644C (en) 2001-07-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed