Ion implantation technology modification-based all-single crystal optical fiber, preparation method, numerical aperture regulation and application thereof

A technology of ion implantation and single crystal, which is applied in the direction of cladding optical fiber, optics, optical components, etc., can solve the problems of complex heterogeneous cladding preparation process route, low service life, poor repeatability, etc., and achieve cladding single crystal quality High, reduced loss, and fewer steps

Active Publication Date: 2021-01-22
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the shortcomings of the existing technology, especially the traditional heterogeneous cladding has problems such as complex preparation process route, poor repeatability, high loss, serious effect and low service life

Method used

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  • Ion implantation technology modification-based all-single crystal optical fiber, preparation method, numerical aperture regulation and application thereof
  • Ion implantation technology modification-based all-single crystal optical fiber, preparation method, numerical aperture regulation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] An all-single crystal fiber based on activated ion implantation, including a highly doped core and a non-doped cladding on the surface of the core formed by ion implantation; the core and cladding are made of the same material, both pure YAG single crystal In the optical fiber, the cladding structure can realize the total reflection of the light beam inside the fiber core.

[0045] The MEVVA ion source is used to implant Nd ions into pure YAG single crystal fiber with diameter d=20 μm and length 10 cm. The diameter of the Nd ion-doped core region is 15 μm, and the doping concentration is 1 at%. That is: the core is a region with a diameter of 15 μm, the region of the YAG single crystal fiber not doped with Nd ions is the cladding, and the thickness of the cladding is 2.5 μm.

[0046] The implantation temperature is room temperature, the implantation energy is 100-500KeV, and the implantation depth ranges from 2.5-10 μm.

Embodiment 2

[0048] As shown in Example 1, the difference is that the MEVVA ion source is used to implant Yb ions into a pure YAG single crystal optical fiber with a diameter d=20 μm and a length of 10 cm, and the diameter of the Yb ion-doped core region is 15 μm.

Embodiment 3

[0050] As shown in Example 1, the difference is that the MEVVA ion source is used to implant Er ions into a pure YAG single crystal optical fiber with a diameter d=20 μm and a length of 10 cm, the diameter of the Er ion-doped core region is 15 μm, and the doping concentration is 30 at%. .

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Abstract

The invention relates to an ion implantation technology modification-based all-single crystal optical fiber, a preparation method, numerical aperture regulation and application thereof. Activated ionsand the like are injected into the core part of the pure-phase single crystal optical fiber, so that a total reflection structure can be realized, the size of the fiber core is effectively reduced, the optical waveguide modulus is greatly reduced, transmission beams are effectively restrained, and the traditional process route of glass optical fibers is completely replaced. By optimizing the depth, the concentration, the type and the like of implanted ions, the numerical aperture of the single crystal fiber is precisely regulated to form a total reflection structure, efficient optical waveguide performance is achieved, and the optical waveguide modulus can be effectively reduced by reducing the size of a doped fiber core formed by ion implantation. According to the invention, energy losscaused by cladding coating can be avoided, and the all-single crystal optical fiber with higher preparation efficiency, better repeatability and better controllability is prepared. The all-single crystal optical fiber has an important application prospect in the fields of optical waveguide analog-digital control and single-mode optical waveguide, long-distance information communication and high-energy laser.

Description

technical field [0001] The invention relates to a novel single crystal optical fiber implanted based on laser-activated ions (transition metal ions, rare earth ions, etc.), a preparation method, numerical aperture control and application thereof, and belongs to the field of new materials and laser technology. Background technique [0002] Single crystal optical fiber is a one-dimensional functional crystal material, which has excellent physical and chemical properties of bulk crystals, and also has the characteristics of high aspect ratio and large specific surface area of ​​glass optical fiber. Therefore, single crystal optical fiber has simple thermal management, It has the advantages of high rare earth doping content, wide infrared transmission range, high anti-damage threshold, and low nonlinear effect. Therefore, single crystal fiber has great application prospects in the field of high-power fiber laser, especially in the field of infrared fiber laser, and will have gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/02G02B6/02
CPCG02B1/02G02B6/02
Inventor 贾志泰王涛张健陶绪堂
Owner SHANDONG UNIV
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