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Optical waveguide structure, optical-waveguide-type optical module and optical fiber array

A technology for optical waveguides and structures, applied in the coupling of optical waveguides, optical guides, optical components, etc., can solve the problems of reduced insertion loss, uneven stress, etc., and achieve the effect of reducing insertion loss and reducing variation.

Inactive Publication Date: 2009-02-04
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if the thickness of the adhesive 310 is different on both sides of the upstream optical fiber 302, when the ambient temperature changes, unequal stress acts on the upstream optical fiber 302, resulting in a decrease in insertion loss.

Method used

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  • Optical waveguide structure, optical-waveguide-type optical module and optical fiber array
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  • Optical waveguide structure, optical-waveguide-type optical module and optical fiber array

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Embodiment Construction

[0075] Hereinafter, a first embodiment of an optical waveguide structure using the present invention will be described in detail with reference to FIGS. 1 to 3 .

[0076] FIG. 1 is a plan view of an optical waveguide type optical module including an optical waveguide structure according to a first embodiment of the present invention. in addition, figure 2 FIG. 1 is a partially enlarged cross-sectional view of line II-II in FIG. 1 , and FIG. 3 is a partially enlarged cross-sectional view of line III-III in FIG. 1 .

[0077] As shown in FIGS. 1 to 3 , an optical waveguide optical module 1 has: an upstream optical fiber 2 extending in a longer direction; Eight downstream optical fibers 4 arranged side by side in the lateral direction; and an optical waveguide structure 6 as a first embodiment of the present invention for transmitting light transmitted through the upstream optical fiber 2 to the downstream optical fiber 4 . Each of the upstream optical fiber 2 and the downstrea...

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Abstract

The invention provides an optical waveguide configuration (6) for making the insertion losses and fluctuations of an optical waveguide type optical module including an optical waveguide structure, lighter than those of the prior art. The optical waveguide structure comprises a substrate (12) having an upstream groove array (8) and a downstream groove array (10), and an optical waveguide (14) laminated on the substrate (12) between the upstream groove array and the downstream groove array. The optical waveguide has cores (14b) formed and arrayed at the same vertical levels as those of cores (2a and 4a) of optical fibers positioned in the grooves of the groove arrays (8 and 10), and is equipped with upstream ports (20) and downstream ports (22) in a number equal to or larger than that of the upstream ports (20) so as to transmit a light between optical fibers (2 and 4). The ratio of the downstream groove number to the upstream groove number is smaller than that of the downstream port number to the upstream port number.

Description

technical field [0001] The present invention relates to an optical waveguide structure, an optical waveguide optical module, and an optical fiber array constituting an optical module by coupling with an optical waveguide, which are components of an optical waveguide-type optical module. Specifically, it relates to a substrate provided with grooves for positioning optical fibers. An optical waveguide structure on which an optical waveguide coupled to an optical fiber is stacked, an optical waveguide-type optical module including the optical waveguide structure, an optical waveguide-type optical module, and an optical fiber array provided with grooves for supporting optical fibers. Background technique [0002] Conventionally, an optical waveguide structure in which an optical waveguide coupled to an optical fiber is stacked on a substrate provided with a groove for positioning an optical fiber, and an optical waveguide type optical module including the same are known (see Pate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/30G02B6/122
Inventor 宫寺信生山本礼八木成行
Owner RESONAC CORPORATION