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Optical waveguide and method of manufacturing optical waveguide

An optical waveguide and optical technology, applied in the direction of optical guide, optics, cladding fiber, etc., can solve the problems of spatial dislocation, coupling loss, increase propagation loss and so on

Inactive Publication Date: 2016-08-17
希捷系统(英国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is that the mode profile of the propagated signal is spatially misaligned between the straight and curved portions of the waveguide
This causes coupling loss, compounded by an increase in scattering loss due to increased interface defects
Skewing of the mode profile towards the waveguide side also increases propagation loss, further limiting the minimum acceptable radius of curvature

Method used

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  • Optical waveguide and method of manufacturing optical waveguide
  • Optical waveguide and method of manufacturing optical waveguide
  • Optical waveguide and method of manufacturing optical waveguide

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Embodiment Construction

[0070] figure 2 A schematic diagram showing the cross-section and refractive index along line YY' of the cross-section of a symmetric optical polymer waveguide 20 with a structured cladding for providing improved lateral confinement of propagating optical signals . In this example, the symmetric optical polymer waveguide 20 includes a core layer 21 , a cladding layer 22 surrounding the core layer 21 . The cladding layer 22 is configured to form a ridge such that the core layer 21 is disposed within the ridge. Typically, the waveguide 20 is formed in figure 2 on a substrate not shown. In this arrangement, the cladding 22 can be divided into a lower cladding 23 and an upper cladding 24 . Examples of materials suitable for forming the core layer 21 and the cladding layer 22 are listed in Table 1, but are not limited to these listed materials.

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[0072]

[0073] Table 1

[0074] The lower cladding layer 23 is directly connected to the core layer 21 and extend...

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PUM

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Abstract

An optical waveguide (40) is provided comprising an optical core (41) having lateral sides extending along a curved path; on lateral sides (441, 442) of the optical core (41) The optical cladding of , wherein the distribution of the optical cladding on the lateral sides of the optical core is asymmetric about the center of the core.

Description

technical field [0001] The present invention relates to optical waveguides and methods of making optical waveguides. The invention also relates to an optical printed circuit board having one or more optical waveguides formed thereon. [0002] In an embodiment, the present invention relates to an optical waveguide and a method of manufacturing an optical waveguide that guides an optical signal along a curved path with reduced propagation loss, thereby enabling the guidance of an optical signal along a radius of curvature that was previously too small Curved paths that cannot be implemented. Background technique [0003] As the amount of data captured, processed, transmitted, and stored as digital information continues to increase, data storage devices and networking technologies have been developed for consolidation, such as Fiber Channel, which increases communication bandwidth. For example, the data rate of the dominant protocol Serial SCSI (SAS), which manages interconne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/125G02B6/122
CPCG02B6/028G02B6/1221G02B6/125G02B6/138
Inventor 理查德·查尔斯·亚历山大·皮特翁
Owner 希捷系统(英国)有限公司