Hollow-core polarization-maintaining anti-resonance optical fiber and preparation method thereof

An anti-resonant, hollow-core technology, applied to multi-layer core/clad optical fibers, clad optical fibers, glass manufacturing equipment, etc., can solve the problems of difficult design and preparation of hollow-core polarization-maintaining optical fibers

Active Publication Date: 2020-10-23
艾菲博(宁波)光电科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extremely difficult design and manufacture of hollow-core polarization-maintaining optical fibers, only a few companies in the world have proposed one or two experimental solutions, and no domestic company or research institute can provide any sample display with independent intellectual property rights.

Method used

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  • Hollow-core polarization-maintaining anti-resonance optical fiber and preparation method thereof
  • Hollow-core polarization-maintaining anti-resonance optical fiber and preparation method thereof
  • Hollow-core polarization-maintaining anti-resonance optical fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a hollow-core polarization-maintaining anti-resonant optical fiber proposed in this embodiment comprises the following steps:

[0037] Step 1: If Figure 1a As shown, a solid casing 41 is selected; then in the tube hole of the solid casing 41, a total of 6 microcapillaries are arranged in a ring evenly spaced around the tube wall, so that the outer walls of all the microcapillaries are in contact with the solid casing 41. The inner walls of the two microcapillaries are close to each other, and the outer diameters of the two microcapillaries are greater than the outer diameters of the remaining four microcapillaries, and the two large diameter microcapillaries are defined as the first microcapillary 51, while the remaining four small diameter microcapillaries are defined as the first microcapillary 51. The capillary is defined as the second microcapillary 52, and the standard for the position arrangement of all the first microcapillary 51 and the se...

Embodiment 2

[0046] A method for preparing a hollow-core polarization-maintaining anti-resonant optical fiber proposed in this embodiment comprises the following steps:

[0047] Step 1: If Figure 2a As shown, select a solid sleeve 41; then in the tube hole of the solid sleeve 41, close to the wall of the solid sleeve 41 and arrange a circle of 6 microcapillaries evenly in a circle, that is, the outer walls of all the microcapillaries Closely attached to the inner wall of the solid casing 41, wherein the outer diameters of two microcapillaries are smaller than the outer diameters of the remaining four microcapillaries, and these two small-diameter microcapillaries are defined as the first microcapillary 51, and the remaining four microcapillaries are defined as the first microcapillary 51. The microcapillary with a large diameter is defined as the second microcapillary 52, and the standard for the position arrangement of all the first microcapillary 51 and the second microcapillary 52 alon...

Embodiment 3

[0057] A method for preparing a hollow-core polarization-maintaining anti-resonant optical fiber proposed in this embodiment comprises the following steps:

[0058] Step 1: If Figure 3a As shown, select a solid sleeve 41; then in the tube hole of the solid sleeve 41, close to the wall of the solid sleeve 41 and arrange a circle of 6 microcapillaries evenly in a circle, that is, the outer walls of all the microcapillaries Closely attached to the inner wall of the solid casing 41, wherein the outer diameter of one microcapillary is smaller than the outer diameters of the remaining five microcapillaries, and this one small-diameter microcapillary is defined as the first microcapillary 51, and the remaining five microcapillaries are defined as the first microcapillary 51. The microcapillary with a large diameter is defined as the second microcapillary 52, and the standard for the position arrangement of all the first microcapillary 51 and the second microcapillary 52 along the tu...

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Abstract

The invention discloses a hollow-core polarization-maintaining anti-resonance optical fiber and a preparation method thereof. The preparation method comprises the steps of: annularly and evenly distributing a circle of micro capillaries in a solid sleeve at intervals and closely attaching them to the wall of the solid sleeve, wherein the outer diameter of half or less of the micro capillaries is smaller than or larger than that of the rest micro capillaries, and a radial cross section of a middle hole defined by all the micro capillaries is oval; inserting an auxiliary capillary rod into eachof the two shaft ends of the middle hole, and inserting supporting capillary rods with different sizes into the spaces of the two shaft ends to obtain a stack body; drawing the intermediate slope partof the stack body, and actively controlling the pressure of each region; inserting the stack body intermediate obtained by drawing into a cladding sleeve to form an optical fiber preform; and performing optical fiber preparation on the optical fiber preform, and actively controlling the pressure of each region in the optical fiber preparation process. The preparation method has the advantages that the prepared optical fiber is low in preparation cost, low in loss, low in dispersion and fast in transmission, and the birefringence value can be controlled and adjusted through air pressure in thepreparation process.

Description

technical field [0001] The invention relates to an optical fiber and a preparation method thereof, in particular to a hollow-core polarization-maintaining anti-resonance optical fiber and a preparation method thereof. Background technique [0002] As a kind of special optical fiber, polarization maintaining fiber, as the name implies, can transmit linearly polarized light and keep the polarization state of the light unchanged or rarely changed during transmission. Polarization maintaining optical fiber is widely used in aerospace, industrial manufacturing, unmanned driving, communication and other fields. There are two ways to realize the polarization maintenance of optical fibers: one way is to add stress regions symmetrically on both sides of the fiber core (for example, borosilicate glass is used as the material of the stress region), and the birefringence of the fiber core is improved based on the internal stress to achieve Polarization effect, such common fibers includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02G02B6/036C03B37/075C03B37/012B29C41/30B29C35/08B29L11/00
CPCG02B6/02342G02B6/03622C03B37/075C03B37/0124C03B37/01211B29C41/30B29C35/0805B29C2035/0827B29L2011/0075
Inventor 江昕郑羽付晓松邹琪琳
Owner 艾菲博(宁波)光电科技有限责任公司
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