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An all-optical wavelength conversion device based on topological insulator

An all-optical wavelength conversion and topological insulator technology, which is applied in instruments, optics, nonlinear optics, etc., can solve the problems of poor stability, easy to be affected by ambient temperature, and high noise index, and achieve good stability and low environmental temperature. impact, low noise figure effect

Inactive Publication Date: 2015-11-11
李瑛
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a topological insulator-based all-optical wavelength conversion device with a simple structure and simple manufacturing process for the deficiencies of the existing technologies. wave mixing, so as to realize all-optical wavelength conversion, and solve the problem of high noise index, easy to be affected by ambient temperature and poor stability when SOA is used as a nonlinear device

Method used

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Embodiment Construction

[0016] Such as figure 1 As shown, the first embodiment of the present invention includes an optical fiber 1, and the middle part of the optical fiber 1 is made into a D-shaped optical fiber 2; one side of the plane of the D-shaped optical fiber 2 is provided with a topological insulator layer 4; the topological insulator layer 4. The thickness is 10-50 nm; the length of the D-shaped optical fiber 2 is 30-40 mm.

[0017] In the first embodiment, the topological insulator layer 4 can adopt topological insulator nanosheets / nanoparticles to be deposited on the section (plane side) of the D-shaped optical fiber 4 by an optically induced method; The flakes / nanoparticles are sprayed on the section (flat side) to the D-shaped fiber 4.

[0018] Such as figure 2 As shown, the optical fiber 1 of the second embodiment of the present invention, the middle part of the optical fiber 1 is made into a tapered optical fiber 3; the waist cone of the tapered optical fiber 3 is provided with a ...

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Abstract

The invention discloses a topological insulator-based all-optical wavelength conversion device. The topological insulator-based all-optical wavelength conversion device comprises an optical fiber, and any section of the optical fiber is manufactured into D-shaped optical fiber or tapering optical fiber; a topological insulator layer is arranged on one plane side of the D-shaped optical fiber or on the waist cone of the tapering optical fiber; the topological insulator layer is 10-50nm thick. The all-optical wavelength conversion device is simple in structure, easy in manufacturing technique, low in noise index, difficult of being influenced by environment temperature, and excellent in stability.

Description

technical field [0001] The invention relates to an optical communication device, in particular to an all-optical wavelength conversion device based on a topological insulator, which is used for all-optical wavelength conversion. Background technique [0002] The all-optical communication network can break through the speed limitation of the electronic bottleneck in the "optical-electrical-optical" conversion process, and make full use of the huge bandwidth resources of optical fibers. It has always been the dream communication network of optical communication. All-optical signal processing technology is the key to realizing an all-optical communication network, involving multiple aspects such as transmission, switching, routing, access, and service processing. Specific technologies include all-optical wavelength conversion, all-optical ultra-wideband signal generation, and so on. Among them, the all-optical wavelength conversion technology plays a key role in the all-optical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355G02F1/365G02F1/383
Inventor 陈书青李瑛赵楚军张晗文双春
Owner 李瑛
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