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JPS5768804A - Thin plate-like polarizing and separating device - Google Patents

Thin plate-like polarizing and separating device

Info

Publication number
JPS5768804A
JPS5768804A JP55145458A JP14545880A JPS5768804A JP S5768804 A JPS5768804 A JP S5768804A JP 55145458 A JP55145458 A JP 55145458A JP 14545880 A JP14545880 A JP 14545880A JP S5768804 A JPS5768804 A JP S5768804A
Authority
JP
Japan
Prior art keywords
light beam
fiber
axis
plane
separated
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
JP55145458A
Other languages
Japanese (ja)
Inventor
Masataka Shirasaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55145458A priority Critical patent/JPS5768804A/en
Publication of JPS5768804A publication Critical patent/JPS5768804A/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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting

Landscapes

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

Abstract

PURPOSE:To make a device small-sized and inexpensive, by constituting it so that an incident light beam is polarized and separated by use of a thin plate-like double refractin plate having an optical axis which has been inclined by a prescribed angle in a plane. CONSTITUTION:Plane lenses 2, 4 are provided on both sides of a thin plate-like double refraction plate 1 having an optical axis alpha which has been inclined by 45 deg.C or so in a plane including an x-axis and a z-axis (forwarding direction of a light beam). The plane lenses 2, 4 have a one-dimensional refractive index distribution which decreases only in the x-axis direction in proportion to square of a distance from the center. When a light beam containing normal light beam and abnormal light beam components is made incident from an input side fiber 5, the light beam proceeds as shown by a full line, is led to a fiber 3, and on the other hand, the abnormal light beam proceeds as shown by a broken line and is separated. On the contrary, in case when a light beam containing a normal light beam component and an abnormal light beam component is made incident from the fiber 3, only the normal light beam shown by a full line is made incident to the fiber 5, and the abnormal light beam is separated as shown by an alternate long and short dash line. In this way, a device becomes small-sized and inexpensive.
JP55145458A 1980-10-17 1980-10-17 Thin plate-like polarizing and separating device Pending JPS5768804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55145458A JPS5768804A (en) 1980-10-17 1980-10-17 Thin plate-like polarizing and separating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55145458A JPS5768804A (en) 1980-10-17 1980-10-17 Thin plate-like polarizing and separating device

Publications (1)

Publication Number Publication Date
JPS5768804A true JPS5768804A (en) 1982-04-27

Family

ID=15385690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55145458A Pending JPS5768804A (en) 1980-10-17 1980-10-17 Thin plate-like polarizing and separating device

Country Status (1)

Country Link
JP (1) JPS5768804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493140B1 (en) * 1999-10-14 2002-12-10 Oplink Communications, Inc. Polarization splitter and combiner and optical devices using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6493140B1 (en) * 1999-10-14 2002-12-10 Oplink Communications, Inc. Polarization splitter and combiner and optical devices using the same

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