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The connection structure of the optical waveguide chip

A technology for connecting structures and optical waveguides, applied in the coupling of optical waveguides, light guides, optics, etc., to achieve the effect of eliminating various restrictions

Active Publication Date: 2021-11-12
NIPPON TELEGRAPH & TELEPHONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] However, in the stacked structure disclosed in Patent Document 2, although the two optical waveguide chips (quartz-based PLCs 1001 and 1003) can be accurately aligned, easy and reliable communication between the optical waveguide chips cannot be achieved by passive alignment mounting. Accurate End Connections

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  • The connection structure of the optical waveguide chip
  • The connection structure of the optical waveguide chip
  • The connection structure of the optical waveguide chip

Examples

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no. 1 example

[0065] The connection structure of the optical waveguide chip according to the first embodiment of the connection structure will be described. Figure 1A to Figure 1D is a schematic diagram showing the connection structure of the optical waveguide chip according to the first embodiment of the present invention. Figure 1A is a perspective view of the connection structure of the optical waveguide chip, Figure 1B is an exploded view of the various parts of the connection structure, Figure 1C is a diagram showing the bonding surface of the optical waveguide chip and the substrate, and Figure 1D is a cross-sectional view of the connection structure taken along the xy plane.

[0066] Note that various functional circuits configured to process signals, such as switches and wavelength multiplexers / demultiplexers, are mounted on the optical waveguide chip as needed. However, this embodiment does not depend on the circuit arrangement and functionality of the circuits in the optic...

no. 2 example

[0097]Next, a second embodiment of the present invention will be described. Figure 3A to Figure 3D is a schematic diagram showing the connection structure of the optical waveguide chip according to the second embodiment of the present invention, and in Figure 3A to Figure 3D in, with Figure 1A to Figure 1D and Figure 2A to Figure 2D The same reference numerals denote the same components. Figure 3A is a perspective view of the connection structure of the quartz-based PLC 2001a and 2002a, Figure 3B is an exploded view of the various parts of the connection structure, Figure 3C is a diagram showing the interface of quartz-based PLCs 2001a and 2002a with a quartz-based substrate 2003a, and Figure 3D is a cross-sectional view of the connection structure taken along the xy plane.

[0098] The basic structure of this embodiment is the same as that of the first embodiment. In this embodiment, the quartz-based PLCs 2001a and 2002a share mounting grooves formed on the quar...

no. 3 example

[0107] Next, a third embodiment of the present invention will be described. Figure 4A and Figure 4B is a schematic diagram showing the connection structure of the optical waveguide chip according to the third embodiment of the present invention, and in Figure 4A and Figure 4B in, with Figure 1A to Figure 1D , Figure 2A to Figure 2D and Figure 3A to Figure 3D The same reference numerals denote the same components.

[0108] Figure 4A There is shown the interface of quartz-based PLCs 2001b and 2002b with a quartz-based substrate 2003b, which has the same structure as that of the first embodiment. In this embodiment, in the connection structure described in the first embodiment, one assembly per PLC is added in the optical waveguide layer 2008 (cladding layer 2010) of each of the two quartz-based PLCs 2001b and 2002b. groove 2014, the longitudinal direction of the assembly groove 2014 is perpendicular to the optical axis direction of the light emitted from the quart...

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Abstract

A connection structure of an optical waveguide chip comprising: a substrate (2003), grooves (2013) formed in the substrate; spaced optical fibers (2006), each spaced optical fiber is arranged and assembled for a corresponding one of the grooves (2013) grooves (2013), while partially protruding from the base (2003); and quartz-based PLCs (2001, 2002), which are a plurality of optical waveguide chips fitted in the grooves on the protruding portions of the spaced optical fibers (2006) Each of (2007) is formed at the position of the optical waveguide layer (2008) facing the groove (2013), and each of the quartz-based PLCs (2001, 2002) is mounted on the substrate (2003) while being Spacing fiber (2006) support. Quartz-based PLCs (2001, 2002) are mounted on a substrate (2003) such that the incident / exit end faces of the optical waveguide layer (2008) face each other.

Description

technical field [0001] The present invention relates to a connection structure of optical waveguide chips used in technical fields requiring optical signal processing, such as optical communication or optical sensing. Background technique [0002] With the development of optical communication networks, it is strongly required to improve the integration of optical communication equipment, that is, to reduce the size of optical equipment. In an optical circuit used as an optical communication device, conventionally, a planar lightwave circuit (PLC) using a quartz glass-based material is widely used. Since PLC is excellent in coupling with optical fibers and reliable as a material, PLC is applied to various devices for optical communication such as optical splitters, wavelength multiplexers / demultiplexers, optical switches, and polarization control elements. functional element. [0003] In recent years, in order to cope with the size reduction of the above-mentioned optical c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/26G02B6/125
CPCG02B6/4231G02B6/12019G02B6/4219G02B6/125G02B6/26G02B6/36G02B6/24G02B6/3636G02B6/3648
Inventor 鹿间光太石川裕士河尻祐子荒武淳
Owner NIPPON TELEGRAPH & TELEPHONE CORP
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