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Method for preparing stretchable single mode laser element by using electrostatic spinning

A laser element, single-mode technology, applied in the field of micro-nano optics, can solve the problems of high laser threshold, difficult resonance excitation mode for single-mode laser, etc., and achieves the effects of simple preparation device, short preparation time and smooth outer surface

Active Publication Date: 2018-10-09
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although laser excitation of electrospun polymer micro-nanofibers has been demonstrated via Fabry-Perot cavity or random cavity effect, the lasing threshold is relatively high, and the resonant excitation mode is difficult to be tuned to single-mode lasing.

Method used

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  • Method for preparing stretchable single mode laser element by using electrostatic spinning
  • Method for preparing stretchable single mode laser element by using electrostatic spinning
  • Method for preparing stretchable single mode laser element by using electrostatic spinning

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the following examples describe the stretchable single-mode laser element of the present invention, the preparation device, the preparation method and the method thereof in conjunction with the drawings. should be used for specific explanation.

[0024] figure 1 It is a structural schematic diagram of the preparation device of the stretchable single-mode laser element in the embodiment of the present invention.

[0025] Such as figure 1 As shown, a stretchable single-mode laser device manufacturing apparatus 100 is used for preparing a stretchable single-mode laser device, including a fixing unit 10 , an injection unit 20 , a high-voltage power supply 30 and a rotating unit 40 .

[0026] The fixing unit 10 includes a fixing frame 11 , a pusher 12 and a bracket 13 . The pusher 12 is arranged at the tail end of the fixed frame 11 and can move back and...

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Abstract

The invention provides a method for preparing a stretchable single mode laser element. The stretchable single mode laser element is prepared by using electrostatic spinning technology. The single modelaser element comprises a polymer micro-nano fiber with a diameter ranging from 0.5-4 micrometers; a polydimethylsiloxane (PDMS) substrate which is in a cuboid shape with a groove; an optical micro-bottle cavity, wherein the optical micro-bottle cavity is hung on the polymer micro-nano fiber, the diameter of the short shaft is 3-8 micrometers, and the component of the optical micro-cavity is a resin solution doped with a laser dye. The using method comprises the following steps: the stretchable single-mode laser element can realize efficient single-mode laser output in the micro-cavity of thepolymer bottle by adjusting the interference spot of the excitation light; by stretching the substrate, the adjustability of the peak of the excitation spectrum is realized.

Description

technical field [0001] The invention relates to a micro-nano optical device, in particular to a method for preparing a stretchable single-mode laser element by electrospinning. Background technique [0002] Whispering gallery mode (WGM) microresonators have attracted extensive research attention in the past two decades due to their low lasing threshold and high quality (Q) factor. The direction of methodology and fabrication of materials are the two basic elements for fabricating new microresonators, which lay the foundation for the wide application of microresonators in various fields. [0003] Different WGM geometries (such as disks, spheres, toroids, cylinders, and polygons) and various materials (such as silica, semiconductors, and polymers) have been extensively studied in the past few years. Currently, designing WGM microresonators such as melting, photolithographic etching, thermal evaporation, direct stretching, femtosecond laser writing, and surface tension-induced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00H01S3/08
CPCD01D5/003D01D5/0092H01S3/08013
Inventor 谷付星令狐双艺郭涛
Owner UNIV OF SHANGHAI FOR SCI & TECH