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Optical coupling using polarization beam displacer

A technology of displacer and polarization beam splitter, applied in the field of optical coupling, which can solve the problem of coupler size limitation and so on

Active Publication Date: 2018-03-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupler design has size constraints

Method used

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  • Optical coupling using polarization beam displacer
  • Optical coupling using polarization beam displacer
  • Optical coupling using polarization beam displacer

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Embodiment Construction

[0030] For purposes of explanation, the following detailed description includes numerous specific details in order to provide a thorough understanding of preferred embodiments of the invention. It is evident, however, that the preferred embodiment may be practiced without these specific details or with an equivalent arrangement. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the preferred embodiments of the invention. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but may be limited only by the scope of the appended claims and the full scope of equivalents of such claims. modified within the scope.

[0031] This article describes an apparatus and method for coupling light between an optical fiber (or array of optical fibers) and a photon...

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Abstract

An optical coupling apparatus for coupling an optical fiber to a photonic chip is described. The apparatus includes a collimating microlens for collimating light from the optical fiber; a polarizationsplitting beam displacer for separating the light collimated by the collimating microlens into orthogonally polarized X and Y component beams; at least one focusing microlens for directing the X andY component beams separately onto the photonic chip; and first and second surface grating couplers (SGCs) orthogonally disposed on the photonic chip and configured for operation in a same polarizationstate, for coupling the X and Y component beams, respectively, to the photonic chip.

Description

[0001] Related Applications Cross Application [0002] This application claims priority over prior application to U.S. Provisional Patent Application No. 62 / 184,699, filed June 25, 2015, entitled "Optical Grating Coupler Incorporating Polarization Beam Displacer" and claims prior application priority to U.S. Patent Application No. 15 / 162,765, filed May 24, 2016, entitled "Optical Coupling Using Polarization Beam Displacer," which The entire contents of both prior applications are incorporated herein by reference. technical field [0003] The present invention relates to optical coupling, and more particularly, to an optical coupling device incorporating a polarization beam displacer. Background technique [0004] For many photonic applications such as high-capacity photonic switching, photonic transmitters, and photonic receivers, it is necessary to couple light between optical fibers and photonic chips. There are size constraints in the design of the coupler. A typical l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/126G02B6/2706G02B6/30G02B6/32G02B6/34G02B2006/12107G02B2006/12147
Inventor 多米尼克·约翰·古德威尔帕特瑞克·杜麦思
Owner HUAWEI TECH CO LTD