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Optical system

An optical system and optical technology, applied in the field of optical systems, can solve problems such as the difficulty of optical coupling equipment

Active Publication Date: 2013-02-13
FRAMATOME CONNECTORS INT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, it is difficult to remove glued optical coupling devices, for example for maintenance

Method used

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  • Optical system
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Embodiment Construction

[0025] Figure 1a Partially shown is a hybrid optical backplane or PCB 1 , which is a stack comprising multiple layers. In the following, such a backplane 1 will also be referred to as a stack 1 . The stack 1 comprises a left-hand waveguide structure 3 comprising at least one optical waveguide 2 (10 optical waveguides per structure are shown). The PCB 1 additionally comprises a right-hand waveguide structure 3' which is eg symmetrical to the left-hand waveguide structure 3. The invention can also be applied to PCBs with only one waveguide structure. The waveguide 2 lies in the X-Y plane. The direction Y corresponds to the axis of symmetry of the optical waveguide structure. A direction Z is defined to be orthogonal to said X-Y plane. "Top", "bottom", "upper" and "lower" are used by the relative position of the optical device 4 with respect to the PCB 1 . The waveguide 2 or waveguide structure 3 is integrated or embedded in at least one layer of the stack 1 . The emb...

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Abstract

An optical system comprises : an optical circuit board (1) having an optical layer, embedded between top and bottom faces, and a cut-out (17) having a bottom reference layer defining an X-Y plane, an optical coupling device having a positioning member (19) extending in the cut-out, a mechanical fixation system (31) attaching the optical circuit board to the optical coupling device, and comprising a fixation pin extending through the optical circuit board at the positioning member (19).

Description

technical field [0001] The present invention relates to optical systems. Background technique [0002] Most communication systems contain many system cards. Such cards are usually manufactured as so-called printed circuit boards (PCBs). Typically, some of these system cards, called daughter cards, are assembled together on a rigid and thicker PCB called a backplane or mother card. [0003] The daughter cards generally extend parallel to each other and are interconnected by a backplane that extends perpendicular to the daughter cards. There are some practical advantages to this configuration: easy insertion, removal and replacement of daughter cards. [0004] Due to ever-increasing demands in terms of data rates, for example due to the Internet, the limit of using electrical communication between daughterboards through the backplane is close to being reached. Achieving good signal integrity on the wires inside the backplane becomes difficult. [0005] In response to this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/30G02B6/42
CPCG02B6/4249G02B6/4292G02B6/4214G02B6/30G02B6/423G02B6/4236G02B6/3885
Inventor G·亚布雷Y·斯特里科特
Owner FRAMATOME CONNECTORS INT SA