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A mid-infrared communication device

An infrared communication and infrared light technology, applied in the field of digital communication, can solve the problems of high preparation cost, high price, low efficiency, etc., and achieve the effects of safe and controllable preparation process, wide source of raw materials, and stable data transmission.

Active Publication Date: 2021-04-09
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device has two major defects: one is low efficiency, and the other is that most of the semiconductor devices are transition metal materials with relatively high brittleness, which are expensive and costly to prepare.
[0005] Traditional mid-infrared light detectors can be divided into two types: one is semiconductor, which is relatively brittle and expensive; the other is micro-nano-scale layered materials, such as graphene, transition metal oxygen (sulfur ) compounds, etc., this material is difficult to withstand considerable mechanical action, and the efficiency is low
In addition, traditional mid-infrared detectors can only work at low temperatures, and will gradually fail at high temperatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Using the dispersion of graphene oxide as the raw material (Golene Technology), using wet spinning technology to prepare solid cylindrical fibers with a diameter of 20 microns, heat reduction at 2000°C for 10 minutes, the measured carbon-oxygen ratio is 10.1.

[0047] (2) Graphene fibers with a length of 1 cm were fixed between copper electrodes and assembled as figure 1 In the detector, a current acquisition module is connected to two electrodes, and a dark current of 20mA is input to the graphene fiber through the two electrodes.

[0048] (3) Under the working pressure environment of 10mbar and the working temperature environment of 400K, the wavelength is 3 microns and the power is 5mW / cm 2 The mid-infrared light illuminates the graphene fiber, and the current signal is collected through two electrodes. The current of the device produces a fast response, with a rising edge of 100 nanoseconds, a falling edge of 2 microseconds, and a response time of 0.9 microsec...

Embodiment 2

[0050](1) Using the dispersion of graphene oxide as the raw material (Golene Technology), using wet spinning technology to prepare solid cylindrical graphene fibers with a diameter of 32 microns, heat reduction at 2000°C for 10 minutes, and measure carbon and oxygen The ratio is 11.

[0051] (2) Prepare the graphene fiber as above image 3 said weaving.

[0052] (3) Set between copper electrodes on both sides of the woven fabric, the distance between the two electrodes is 3cm, connect a current acquisition module to the two electrodes, and input a dark current of 13mA.

[0053] (4) The working pressure environment is 1013mbar; the working temperature environment is 30K environment, the wavelength is 5.5 microns, and the power is 7mW / cm 2 The mid-infrared light illuminates the graphene fiber, and the current signal is collected through two electrodes. The device's current response is fast, with a rising edge of 130 nanoseconds, a falling edge of 3.3 microseconds, and a respo...

Embodiment 3

[0056] (1) Using the dispersion of graphene oxide as the raw material (Golene Technology), using wet spinning technology to prepare solid cylindrical fibers with a diameter of 45 microns, heat reduction at 2000°C for 20 minutes, the measured carbon-oxygen ratio is 10.4.

[0057] (2) Fix graphene fibers with a length of 10 cm between copper electrodes, connect a current acquisition module to the two electrodes, and input a dark current of 3 mA.

[0058] (3) In the working air pressure environment of 1013mbar; working temperature environment of 400K environment, the use of power is 9mW / cm 2 , the graphene fiber is irradiated with mid-infrared light with a wavelength of 3 microns, and the current signal is collected through two electrodes. The device's current response is fast, with a rising edge of 140 nanoseconds, a falling edge of 4.5 microseconds, and a response time of 1.3 microseconds.

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Abstract

The invention describes a mid-infrared communication device, which is characterized in that it at least includes a graphene fiber, a data transmission control circuit and a data reception control circuit, and the graphene fiber is connected with the data transmission control circuit or the data reception control circuit for centering Infrared light emission or reception; the invention has a wide range of raw materials and can be prepared in batches; it is the first communication device based on mid-infrared light, with stable data transmission and broad application prospects in digital communication and other fields.

Description

technical field [0001] The invention relates to the field of digital communication, in particular to a mid-infrared communication device. Background technique [0002] Digital communication technology is a cutting-edge technology that uses different light waves as the medium to realize data transmission, usually including two parts: receiving and sending. The current communication technology mainly uses microwaves in the long-wave band as the medium, and it is rarely involved in the short-wave band area. The main reason is that it is limited by the insufficient performance of photoelectric sensors. [0003] Light with a wavelength of 2-25 microns is called mid-infrared light. Due to its special wavelength distribution, if data transmission using mid-infrared light as a carrier can be realized, it will be used in the frontiers of molecular detection, medical care, meteorological science, and secure communication. area has a significant impact. [0004] Most traditional mid-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/11H01L31/108H01L31/028
CPCH01L31/028H01L31/1085H04B10/11
Inventor 高超方波徐杨
Owner HANGZHOU GAOXI TECH CO LTD
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