Photoswitch and light beam directing assembly

An optical switch and light beam technology, which is applied in the field of optical switches, can solve the problems of reducing the number of channels and reducing the array density of mirrors, etc., and achieve the effects of reducing the trouble of position alignment, suppressing the increase of optical paths, and reducing the reduction of coupling efficiency

Inactive Publication Date: 2003-10-29
HITACHI LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the case of the conventional example of the above-mentioned U.S. Patent No. 6,347,167, since the arrangement density of the m

Method used

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  • Photoswitch and light beam directing assembly
  • Photoswitch and light beam directing assembly
  • Photoswitch and light beam directing assembly

Examples

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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0046] exist figure 1 Embodiment 1 of the present invention, which shows a cross-sectional view in , is a beam directing unit that has a plurality of optical fibers for input and output of optical signals, and beams the optical signals propagating through each optical fiber, and then advances in arbitrary directions. 1. It has: an optical fiber collimator 4 composed of an optical fiber 2 for propagating optical signals and a collimating lens 3 configured to collimate and beam the optical signal from the optical fiber 2 is arranged on a fiber collimator support 5 And the fiber collimator array 6 that is set; There are a plurality of first mirrors 7 that can control the inclination angle with one rotation axis; Arranging a first reflector array 10 that can pass through a plurality of first windows 8 of light beams; a plurality of second reflectors 11 having a rotation ax...

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PUM

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Abstract

In a multi-channel three-dimensional optical switch using a 2-axis movable mirror, the arrangement density of the mirrors is increased to realize a three-dimensional optical switch with more channels. Adjacent to the beam exit surface of the fiber collimator array, a first reflector array with a plurality of first reflectors with one rotation axis and a plurality of first windows is arranged, and a first reflector array with the first reflector is arranged. A second mirror array comprising a plurality of second mirrors and a plurality of second windows for one rotation axis perpendicular to the rotation axis. It constitutes a multi-channel optical switch that forms an optical path in which the light beam emitted from the fiber collimator passes through the first window, is reflected in the order of the fixed mirror and the movable mirror, and passes through the second window to exit to the outside.

Description

[technical field] [0001] The present invention relates to an optical switch for switching the connection of optical signals transmitted in a plurality of optical fibers, and relates to a three-dimensional optical matrix switch for controlling the direction of beamed optical signals by means of mirrors. [Background technique] [0002] In optical communication using optical fibers, N×N optical switches can be used, that is, any one of the optical signals sent to N input ports through optical fibers can be connected to one of N output ports. , and can switch their connected devices. There has been a report in US Patent No. 6,347,167 on a three-dimensional optical matrix switch that can form an optical path by using an arrayed fiber collimator and mirror array. [0003] In this conventional example, a rack for arranging optical fibers and collimating lenses, a substrate for arranging input-side and output-side micromirrors on the same surface, and a cover for forming a reflecti...

Claims

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Application Information

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IPC IPC(8): G02B6/35
CPCG02B6/3556G02B6/3512G02B6/357
Inventor 风间敦伊藤康博石川忠明
Owner HITACHI LTD
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