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Optical waveguide and method of fabrication the optical waveguide

An optical waveguide and optical technology, applied in the direction of light guide, optics, cladding fiber, etc., can solve the problems of increased scattering loss, increased propagation loss, spatial misalignment, etc.

Inactive Publication Date: 2014-03-05
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 fabrication the optical waveguide
  • Optical waveguide and method of fabrication the optical waveguide
  • Optical waveguide and method of fabrication the optical waveguide

Examples

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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.

[0071] Material

Refractive index

1,1,1,3,3,3-Hexafluoroisopropylpropanoate 99%

1.3

1,1,1,3,3,3-Hex...

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PUM

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Abstract

The invention provides an optical waveguide (40). The optical waveguide comprises an optical core (41) having transverse sides; and an optical cladding on the transverse sides (441, 442) of the optical core (41), wherein the optical core extends along a curved path; and the distribution of the optical cladding on the transverse sides of the optical core is asymmetric about the centre 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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IPC IPC(8): G02B6/125G02B6/122
CPCG02B6/028G02B6/125G02B6/1221G02B6/138
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