Low-loss glass ceramic planar optical waveguide and preparation method thereof

A technology of planar optical waveguide and glass ceramics, which is applied in the direction of optical waveguide and light guide, can solve the problems of reducing optical efficiency, etc., and achieve the effects of simple process, high output and yield, and simple preparation process

Active Publication Date: 2021-03-19
XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When optical pumping is performed, some losses will inevitably occur in the optical waveguide. These losses come from light refraction, etc., thus reducing its optical efficiency.

Method used

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  • Low-loss glass ceramic planar optical waveguide and preparation method thereof
  • Low-loss glass ceramic planar optical waveguide and preparation method thereof
  • Low-loss glass ceramic planar optical waveguide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: SiO 2 -30mol% SNO 2 : 0.5er 3+

[0015] Sncl, which is greater than 99.9%, according to the chemical measurement ratio 2 Er (no " 3 ) 3 , Citric acid and orthosilicate (TEOS) as raw materials. First put SNCL 2 Er (no " 3 ) 3 , TEOS and citric acid mixed, the molar ratio of citric acid and the metal ion was 1: 0.5, then the volume fraction was a mixture of 50% deionized water, stirred at 200 rpm for 16 h, resulting in a sol. The solution was filtered using a 200 nm filter, and the collected portion was used for dip. SiO 2 The glass was dipped on the glass, the immersion rate was 7 cm / min, and 30 deposited layers were deposited, and then dried at 900 ° C for 20 min. Finally, it was heated at 900 ° C for 3 h to obtain a glass ceramic planar optical waveguide.

Embodiment 2

[0016] Example 2: SiO 2 -30mol% SNO 2 : 0.4er 3+

[0017] Sncl, which is greater than 99.9%, according to the chemical measurement ratio 2 Er (no " 3 ) 3 , Citric acid and orthosilicate (TEOS) as raw materials. First put SNCL 2 Er (no " 3 ) 3 , TEOS and citric acid mixed, the molar ratio of citric acid and the metal ion was 1: 1, then the volume fraction was a mixture of 20% deionized water, and stirred at 300 rpm for 10 h, resulting in a sol. The solution was filtered using a 200 nm filter, and the collected portion was used for dip. SiO 2 The glass was dipped on the glass, the immersion rate was 7.5 cm / min, and 20 deposited layers were deposited. After the dip coating was dried at 800 ° C for 30 min. Finally, heating at 1100 ° C for 1 h, resulting in a glass ceramic planar optical waveguide.

Embodiment 3

[0018] Example 3: SiO 2 -30mol% SNO 2 : 0.3er 3+

[0019] Sncl, which is greater than 99.9%, according to the chemical measurement ratio 2 Er (no " 3 ) 3 , Citric acid and orthosilicate (TEOS) as raw materials. First put SNCL 2 Er (no " 3 ) 3 , TEOS and citric acid were mixed, the molar ratio of citric acid and the metal ion was 1: 0.75, and then the volume fraction was a mixture of 40% deionized water, stirred at 280 rpm for 12 h, resulting in a sol. The solution was filtered using a 200 nm filter, and the collected portion was used for dip. SiO 2 The dip coating was performed on the glass, the immersion rate was 7 cm / min, and 25 deposited layers were deposited, and the dried was dried at 850 ° C for 26 min. Finally, heating at 1000 ° C for 2 h, resulting in a glass ceramic planar optical waveguide.

[0020] Take Example 1 as an example, from figure 1 XRD map shows, through comparison with standard cards, in SNO 2 The peak of the office has a good consistency, indicating succ...

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Abstract

The invention discloses a low-loss glass ceramic planar optical waveguide and a preparation method thereof, and belongs to the technical field of preparation and application of planar optical waveguides. The prepared glass ceramic planar optical waveguide meets the requirement that the component is SiO2-30 mol% SnO2: xEr<3+>, wherein x is larger than or equal to 0.3 and smaller than or equal to 0.5, the glass ceramic planar optical waveguide is prepared through a sol-gel method and a dip-coating technology, a non-radiative relaxation process is hindered by adding Er<3+> into SnO2 nanocrystalsto reduce loss, and propagation loss at 1542 nm is as low as 0.6 dB/cm. The preparation method provided by the invention is simple in process, stable in product performance and suitable for industrialproduction.

Description

Technical field [0001] The present invention provides a low loss glass ceramic planar optical waveguide and a preparation method thereof, and is a flat optical waveguide preparation application technology. Background technique [0002] Glass ceramics are two-phase materials embedded in nano crystals in glass. When the nanocrystals are activated by transition metal ions and rare earth ions, photonic glass ceramics are obtained. The advantage of photonic glass ceramics comes from the optical glass and crystals from which the optical properties of the glass are combined with the spectral characteristics of the crystals, which is that glass ceramics have both in photon applications relative to glass, single crystal and sintering transparent ceramics. The advantages. Therefore, people 's application of glass ceramics in photons, especially in integrated optical applications, have been studied. It is worth noting that the spectral characteristics of the rare earth ions can be customize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/10
CPCG02B6/10
Inventor 张乐甄方正康健陈东顺申冰磊赵超罗泽陈浩
Owner XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
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