JPS6476005A - Wavelength multiple optical demultiplexer - Google Patents

Wavelength multiple optical demultiplexer

Info

Publication number
JPS6476005A
JPS6476005A JP23296287A JP23296287A JPS6476005A JP S6476005 A JPS6476005 A JP S6476005A JP 23296287 A JP23296287 A JP 23296287A JP 23296287 A JP23296287 A JP 23296287A JP S6476005 A JPS6476005 A JP S6476005A
Authority
JP
Japan
Prior art keywords
diffraction grating
waveguide
light
transmission
collimating
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
JP23296287A
Other languages
Japanese (ja)
Inventor
Hideo Maeda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP23296287A priority Critical patent/JPS6476005A/en
Publication of JPS6476005A publication Critical patent/JPS6476005A/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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/124—Geodesic lenses or integrated gratings
    • G02B6/1245—Geodesic lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To greatly secure a wavelength area of light to be demultiplexed by forming a two-dimensional waveguide for leading a transmission light from a transmission type diffraction grating, to a transmission type diffraction grating of the next stage, on a substrate. CONSTITUTION:A one direction collimating lens system 24 is formed by waveguide type collimating lenses 22, 23 of two stages which are positioned in the advance direction of a diffracted light from a diffraction grating 10a and provided with a collimating function only in one direction in the same way as waveguide type collimating lenses 20, 21. On the other hand, in the advance direction of a transmission light from the diffraction grating 10a, a two-dimensional waveguide 27 by waveguide lenses 25, 26 of two stages for leading the transmission light from the diffraction grating 10a, to a transmission type diffraction grating of the next stage is formed and the waveguide type collimating lenses 22, 25 are formed as one body. Accordingly, light deviated from the diffraction condition of the transmission type diffraction grating 10a can also be utilized positively. In such a way, the wavelength area can be secured greatly.
JP23296287A 1987-09-17 1987-09-17 Wavelength multiple optical demultiplexer Pending JPS6476005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23296287A JPS6476005A (en) 1987-09-17 1987-09-17 Wavelength multiple optical demultiplexer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23296287A JPS6476005A (en) 1987-09-17 1987-09-17 Wavelength multiple optical demultiplexer

Publications (1)

Publication Number Publication Date
JPS6476005A true JPS6476005A (en) 1989-03-22

Family

ID=16947601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23296287A Pending JPS6476005A (en) 1987-09-17 1987-09-17 Wavelength multiple optical demultiplexer

Country Status (1)

Country Link
JP (1) JPS6476005A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002031551A1 (en) * 2000-10-13 2002-04-18 Highwave Optical Technologies Marseille Optical filters, method for making same and use thereof for a multiplex system
FR2816062A1 (en) * 2000-10-27 2002-05-03 Shakticom Fibre optic telecommunications optical filter manufacture, having thin substrate deposited layer with inserted shaped sections forming pass band filter near normal incidence

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002031551A1 (en) * 2000-10-13 2002-04-18 Highwave Optical Technologies Marseille Optical filters, method for making same and use thereof for a multiplex system
FR2816062A1 (en) * 2000-10-27 2002-05-03 Shakticom Fibre optic telecommunications optical filter manufacture, having thin substrate deposited layer with inserted shaped sections forming pass band filter near normal incidence

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