High molecular material decorated quantum dot single-mode optical fiber amplifier and manufacturing method thereof

A polymer material, single-mode fiber technology, used in instruments, optics, nonlinear optics, etc., can solve the problems of good size dispersion and high concentration, and achieve the effect of improving device characteristics, high compatibility, and realizing miniaturization.

Inactive Publication Date: 2014-12-31
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problem with these two technologies is that they cannot controllably prepare semiconductor quantum dot films with uniform size, good dispersion, and high concentration.

Method used

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  • High molecular material decorated quantum dot single-mode optical fiber amplifier and manufacturing method thereof
  • High molecular material decorated quantum dot single-mode optical fiber amplifier and manufacturing method thereof
  • High molecular material decorated quantum dot single-mode optical fiber amplifier and manufacturing method thereof

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Embodiment

[0041] The quantum dot single-mode fiber amplifier based on the modification of polymer materials, combined with the implementation process, respectively figure 1 and figure 2 , and then to explain: one 1550nm signal light source 1, one 980nm pump light source 2 and evanescent wave amplification fiber 3 are composed. Among them, in the evanescent wave amplification fiber 3, a) is the input of signal light, b) is the input of pump light, and c) is the output of the amplified signal, and is composed of 2*2 fused taper single-mode fiber coupler 4, And based on polymer modified PbS quantum dot doped sol-gel deposition film 5 composition. The 2*2 fused-cone single-mode fiber coupler 4 is composed of a signal light input fiber 6 , a pump light input fiber 7 , a taper 8 , an amplified signal output fiber 9 , and a pump light output fiber 10 . figure 2 Among them, a is the signal light input, b is the pump light input, and c is the amplified signal output. After polymer modificat...

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Abstract

The invention relates to a high molecular material decorated quantum dot single-mode optical fiber amplifier and a manufacturing method of the high molecular material decorated quantum dot single-mode optical fiber amplifier, and belongs to the technical field of nanometer material composite optical fiber amplifiers. According to the single-mode optical fiber amplifier, high molecular material decorated semi-conductor quantum dots are coated in a pyrometric cone region of a naked 2X2 pyrometric cone optical fiber coupler in a form of solution, and when a signal light and a pump light pass through the cone region simultaneously, the signal light is excited to be amplified by evanescent waves. The preparation of the quantum dots and the coating process are separated, so that the high molecular material decorated quantum dots are good in quality, high in concentration and good in dispersibility, are transformed into a water-soluble quantum dot coating solution from an oil phase, and are filmed on an optical fiber so as to form a composite single-mode optical fiber amplifier. The manufacturing method disclosed by the invention realizes the water-soluble semi-conductor quantum dot single-mode optical fiber amplifier which is high in gain, large in amplification width, small in size, easy to integrate, simple in manufacturing and low in cost; and the optical fiber amplifier has important real significances and application values in the super-speed and large-capacity broadband access field and the like.

Description

technical field [0001] The invention relates to a quantum dot (QDs) single-mode optical fiber amplifier modified based on a polymer material and a preparation method thereof, belonging to the technical field of optical fiber communication amplifiers compounded with nanometer materials. Background technique [0002] Optical fiber amplifier is one of the key components in high-speed, large-capacity modern and next-generation optical fiber communication systems. With the continuous increase of dense wavelength division multiplexing (DWDM) channels and the rapid popularization and application of fiber-to-the-home (FTTH), the requirements for optical fiber amplifiers in communication systems are also getting higher and higher. However, the most commonly used rare earth element-doped fiber amplifiers, due to the limited gain bandwidth of each rare earth element, the amplified optical fiber after rare earth doping is longer, susceptible to external interference, and cannot realize ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/39
Inventor 孙晓岚安泽胜谢莉彬周伟
Owner SHANGHAI UNIV
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