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Microsphere cavity laser based on ultra-low-threshold multi-component holmium ion doped glass material

A glass material, multi-component technology, used in lasers, phonon exciters, laser components and other directions, can solve the problems of low microsphere quality and high pumping threshold, achieve high Q value, solve low collection energy efficiency, threshold value low effect

Active Publication Date: 2020-09-22
苏州凯文堡尼光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to solve the problems of low microsphere quality and high pumping threshold in the development process of existing microsphere lasers.

Method used

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  • Microsphere cavity laser based on ultra-low-threshold multi-component holmium ion doped glass material
  • Microsphere cavity laser based on ultra-low-threshold multi-component holmium ion doped glass material
  • Microsphere cavity laser based on ultra-low-threshold multi-component holmium ion doped glass material

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preparation example Construction

[0043] The preparation process of the microcavity laser includes the preparation of glass and the preparation of microspheres, including the following steps:

[0044] Weigh the high-purity raw materials according to a certain ratio, and put them in the ball mill to stir, so that all kinds of raw materials are fully mixed;

[0045] Then the mixture was put into a corundum crucible and heated in a high-temperature furnace at 850 °C for 90 min;

[0046]The molten glass is drawn and cooled to make an optical fiber core. Use a carbon dioxide laser to taper the multi-component doped glass fiber, hang a heavy object at the end of the multi-component glass fiber, and use a focusing lens to focus the laser output from the carbon dioxide laser on the multi-component doped glass fiber First, slowly increase the power of the carbon dioxide laser. When the glass fiber reaches its own softening point, due to the action of the weight, the glass fiber slowly falls, and the fiber diameter gra...

Embodiment

[0054] The glass used in this example has a molar percentage of 72TeO 2 -20ZnO-5Na 2 CO 3 -2Y 2 o 3 -1HoF 3 , in order to prepare fused tellurite glass with a total weight of 10 g, the mass of each component is 8.023 g, 1.1368 g, 0.37 g, 0.3153 g, 0.1549 g. Glass filaments were obtained from molten tellurate glass using glass rods, and further prepared into tellurate microspheres. Connect the 1150nm laser and the quartz tapered optical fiber, and connect the Yokogawa AQ6375B spectrometer, turn on the 1150nm laser, increase the power, and obtain the 2.08 micron laser output from the spectrometer, and its output power is 53nW.

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Abstract

The invention discloses an ultra-low-threshold multi-component holmium ion doped glass material. The molar composition of the glass material is expressed as 72TeO2-20ZnO-5Na2CO3-2Y2O3 according to a chemical formula, and Ho<3+> ions with the concentration of 1 mol% are doped. The invention further provides a preparation method and a control method of a microsphere cavity laser based on the ultra-low-threshold multi-component holmium ion doped glass material. The microsphere cavity prepared by the method is perfect in surface and has an extremely high Q value, the manufactured laser is extremely low in threshold, the coupling efficiency is greatly improved, the problems of low output power and low collection energy efficiency of an echo wall mode micro-cavity laser are effectively solved, and a high-efficiency and low-threshold narrow-bandwidth optical fiber mid-infrared optical fiber micro-cavity laser can be realized.

Description

technical field [0001] The invention relates to the technical field of near-infrared lasers, in particular to a microsphere cavity laser based on an ultra-low threshold multi-component holmium ion-doped glass material. Background technique [0002] Microsphere background: optical microsphere cavity, which can trap light beams in very small microspheres, has high energy density and small mode field volume, and the optical mode that can be stably transmitted in the microsphere cavity is called echo wall pattern. When the British scientist Lord Rayleigh studied the propagation of sound in the curved corridor of St. Paul's Cathedral, he found that he could clearly hear the whispering of two people far away from him at the other end of the corridor, so this mode of sound transmission was called "whispering corridor" model". In fact, there is a similar phenomenon in the Whispering Wall in the Temple of Heaven in Beijing. Similar to the reflection of sound waves on the wall, whe...

Claims

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Application Information

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IPC IPC(8): C03C13/04C03C4/00C03C3/12C03B37/15C03B37/023H01S3/067H01S3/16H01S3/17
CPCC03C13/048C03C4/0071C03C3/122C03B37/023C03B37/15H01S3/06708H01S3/06716H01S3/161H01S3/177C03B2201/60
Inventor 王鹏飞余吉波
Owner 苏州凯文堡尼光电科技有限公司
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