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Universal linear optical calculation module and control method thereof

A linear optical and optical group technology, applied in the field of optical signal processing, can solve problems such as rising loss, and achieve the effects of high robustness, slow loss growth trend, and low system complexity

Active Publication Date: 2020-12-18
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practice, the directional coupler and the adjustable phase delay must have insertion loss, so the overall insertion loss (dB) of the Reck structure increases with the size of the matrix in O(N). When the dimension of the matrix increases, the loss (dB) will increase with linear rise

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  • Universal linear optical calculation module and control method thereof
  • Universal linear optical calculation module and control method thereof
  • Universal linear optical calculation module and control method thereof

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] Combine below Figure 1-Figure 5 A general linear optical module according to an embodiment of the present invention is described.

[0058] figure 1 A schematic diagram of the composition and structure of a general linear optical module provided by the embodiment of the present invention; figure 2 A schematic diagram of the composition ...

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Abstract

The embodiment of the invention provides a universal linear optical calculation module and a control method thereof. The universal linear optical calculation module comprises a first wavefront phase modulation device, a second wavefront phase modulation device, a small hole and a convex lens, wherein the first wavefront phase modulation device is used for receiving a discrete spatial mode light group and splitting the discrete spatial mode light group into N parallel light beams to obtain a multiplication discrete light group; the second wavefront phase modulation device is used for receivingthe multiplication discrete light group and combining N parallel light speeds in the discrete light group to obtain combined light; the second wavefront phase modulation device, the small hole and theconvex lens are sequentially arranged at a distance of one time of the focal length; and the convex lens is used for converting the combined light from the small hole into parallel light, so that higher robustness, lower system complexity and slower loss growth trend can be realized when a matrix is increased.

Description

technical field [0001] The invention relates to the technical field of optical signal processing, in particular to a general linear optical module. Background technique [0002] Light is an ideal carrier for carrying information, and all-optical information processing has the advantages of high speed, high bandwidth, and low energy consumption. Universal optical computing has very broad application prospects and has also attracted extensive attention from the industry. Universal optical calculations can be expressed as the following mathematical form |β>=T|α>, that is, the multiplication of a complex matrix and an input vector. As a general optical calculation, any matrix element in the complex matrix is ​​required to be arbitrarily adjustable, rather than a dedicated calculation that can only achieve a single function. [0003] The current mainstream general-purpose optical computing scheme can be traced back to the principle architecture proposed by Reck et al. in ...

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Application Information

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IPC IPC(8): G06E1/02
CPCG06E1/02
Inventor 冯雪李世康欧阳嘉毅黄翊东
Owner TSINGHUA UNIV