Vortex optical fiber on basis of spiral eccentric hole integrating embedded core and preparation method thereof

A technology of optical fiber preform and partial hole, which is applied in the direction of clad optical fiber, glass manufacturing equipment, manufacturing tools, etc., can solve the problems such as the difficulty of preparing optical fiber, and achieve the effect of good spatial flexibility and simple preparation

Inactive Publication Date: 2014-08-06
无锡万润光子技术有限公司
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure of the vortex beam generator is very simple, it is very difficult to prepare such an optical fiber. Therefore, the present invention p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vortex optical fiber on basis of spiral eccentric hole integrating embedded core and preparation method thereof
  • Vortex optical fiber on basis of spiral eccentric hole integrating embedded core and preparation method thereof
  • Vortex optical fiber on basis of spiral eccentric hole integrating embedded core and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] The fiber preparation process can be divided into the following steps (such as Figure 6-Figure 8 ):

[0029] Step 1: To the optical fiber preform 6 with core 5 (such as Image 6 ) Into an eccentric air hole 7 to form a new optical fiber preform 8 (such as Figure 7 );

[0030] Step 2: Place the optical fiber preform 8 on the drawing tower, and perform torsion drawing under the combined action of the vertical traction force 9 and the torsion force 10. After heating and the corresponding post-processing 11, the spiral deflection hole fused core vortex fiber is prepared 12 (The partial hole is located on the side of the core).

[0031] Combine Figure 9-10 , The second embodiment of the present invention has a section of spirally biased hole fused core vortex fiber, the fiber includes a cladding 1, a core 2 and a single spiral air hole 3, wherein the core 2 is located in the center of the fiber and partially melted Embedded in the cladding 1 on the inner wall of the single spi...

Example Embodiment

[0036] Example 1:

[0037] 1. Optical fiber preparation: according to the optical fiber preparation method of the first embodiment, a spirally biased hole fused core vortex optical fiber 12 is prepared;

[0038] 2. Light source coupling: cut the prepared spiral deflection hole fusion core vortex optical fiber 12, then align and weld with the single-mode optical fiber 18 with light source pigtail, such as Figure 13 Shown

[0039] 3. Vortex beam generation: After the laser 19 is input, the vortex light mode transmission will be realized in the vortex fiber 12 with the fused core embedded in the spiral deflection hole, and the vortex-like beam can be output at the fiber end.

Example Embodiment

[0040] Example 2:

[0041] 1. Optical fiber preparation: according to the optical fiber preparation method of the second embodiment, a spirally biased hole fused core vortex optical fiber 17 is prepared;

[0042] 2. Light source coupling: cut the prepared spiral deflection hole fusion core vortex fiber 17 and then align and weld it with the single-mode fiber 18 with light source pigtail, such as Figure 14 Shown

[0043] 3. Vortex beam generation: After the laser 19 is input, the vortex light mode transmission will be realized in the vortex fiber 17 with the fused core embedded in the spiral deflection hole, and the vortex-like beam can be output at the fiber end.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a vortex optical fiber on basis of a spiral eccentric hole integrating embedded core and a preparation method thereof. The optical fiber is formed by rotating and pulling an optical fiber prefabricated rod with an eccentric hole, and therefore a single-screw air hole exists in the optical fiber. Because of the asymmetric optical fiber structure, asymmetric stress birefringence of spiral distribution can be generated in the fiber core of the optical fiber, conduction optical waves can form radial phase differences, orbital angular momentum is obtained, transmission of a vortex phase position optical field is generated, and a vortex-like optical transmission mode is formed. The whole optical fiber has the advantages of being simple in structure, flexible in operation, stable in system, high in antijamming capability and the like, and can be used for vortex light beam generation, particle control, sensing application and other aspects.

Description

(1) Technical field [0001] The invention belongs to the field of optical fiber technology, and in particular relates to a helical off-hole fusion-embedded vortex optical fiber and a preparation method thereof. (2) Background technology [0002] A remarkable feature of vortex beams is that they have orbital angular momentum (Physical Review A, 1992, 45(11): 8185-8189), so they have been widely studied in recent years and have been widely used in communication, optical tweezers, atom manipulation and microscopy has been greatly applied. The most common way to generate vortex beams is to use spatial light modulators (OpticsExpress, 2008, 16(21): 16984-16992), however, spatial light modulators are generally bulky, expensive, and require optical coupling in free space , which causes a lot of inconvenience. [0003] The optical fiber-based vortex light generator has more advantages in the realization of remote interaction and compact vortex optical devices. Researchers have rea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B6/02C03B37/025
Inventor 苑立波邓洪昌
Owner 无锡万润光子技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap