JPS5541487A - Photo circuit element - Google Patents

Photo circuit element

Info

Publication number
JPS5541487A
JPS5541487A JP11625978A JP11625978A JPS5541487A JP S5541487 A JPS5541487 A JP S5541487A JP 11625978 A JP11625978 A JP 11625978A JP 11625978 A JP11625978 A JP 11625978A JP S5541487 A JPS5541487 A JP S5541487A
Authority
JP
Japan
Prior art keywords
light
lambda2
polarization
wavelength
lambda1
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
JP11625978A
Other languages
Japanese (ja)
Inventor
Teruhito Matsui
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 JP11625978A priority Critical patent/JPS5541487A/en
Publication of JPS5541487A publication Critical patent/JPS5541487A/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
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2706—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters
    • G02B6/2713—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations
    • 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
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/2766—Manipulating the plane of polarisation from one input polarisation to another output polarisation, e.g. polarisation rotators, linear to circular polarisation converters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To present a photo circuit element capable of dividing the light differing in wavelength at high precision, by combining the Faraday effect element and double refractive crystal plate, and utilizing the difference in rotational angle of polarized light due to wavelength of Faraday effect. CONSTITUTION:The light of wavelengths lambda1, lambda2 from an optical fiber 12 is sent into a polarizer 8 through a lens 15, and only the light of the same linear polarized component is taken out, which is led into an element 9 made of a substance large in Faraday effect, having a ring magnet 18 provided in the circumference, and the planes of polarization of light of wavelength lambda1 and that of lambda2 are orthogonally crossed in the Faraday element 9. The optical axis of double refractive crystal plate 10 which is a parallel flat plate so that the optical axis may be inclined with respect to the surface is disposed so as to be located on the same plane as either one of the planes of polarization of lights of wavelength lambda1, lambda2 having said orthogonal planes of polarization. And the rising light is split into two beams on the plane of polarization of the cystal plate 10, and one beam is caused to advance straightly, while the other beam is caused to advance obliquely so as to obtain two parallel beams of lambda1 and lambda2, which are made to enter optical fibers 13, 14, respectively, through lenses 16, 17.
JP11625978A 1978-09-20 1978-09-20 Photo circuit element Pending JPS5541487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11625978A JPS5541487A (en) 1978-09-20 1978-09-20 Photo circuit element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11625978A JPS5541487A (en) 1978-09-20 1978-09-20 Photo circuit element

Publications (1)

Publication Number Publication Date
JPS5541487A true JPS5541487A (en) 1980-03-24

Family

ID=14682667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11625978A Pending JPS5541487A (en) 1978-09-20 1978-09-20 Photo circuit element

Country Status (1)

Country Link
JP (1) JPS5541487A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6014256A (en) * 1997-07-18 2000-01-11 Cheng; Yihao Polarizing beam splitter/combiner
TWI795265B (en) * 2022-04-07 2023-03-01 國立臺灣科技大學 Annular light emitting device and photography method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6014256A (en) * 1997-07-18 2000-01-11 Cheng; Yihao Polarizing beam splitter/combiner
TWI795265B (en) * 2022-04-07 2023-03-01 國立臺灣科技大學 Annular light emitting device and photography method using the same

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