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Annular resonator capable of accurately regulating resonant frequency

A ring resonator and resonant frequency technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of no controllability and no ability to adjust the resonant frequency, and achieve the effect of precise resonant frequency and resonant frequency regulation

Pending Publication Date: 2017-07-07
CHENGDU UNIV OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this traditional common resonator does not have the function of adjusting the resonance frequency. The wavelength of its filter, that is, the resonance wavelength, is determined once the device structure is determined, and it is not adjustable.

Method used

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  • Annular resonator capable of accurately regulating resonant frequency
  • Annular resonator capable of accurately regulating resonant frequency
  • Annular resonator capable of accurately regulating resonant frequency

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Experimental program
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Embodiment

[0021] Such as figure 2 As shown, a ring resonator that can precisely adjust the resonant frequency includes a straight waveguide 10 and a resonant ring 20 coupled with the straight waveguide 10; the resonant ring 20 is covered with hafnium-doped vanadium oxide HF-VO 2 Film 21.

[0022] Due to hafnium-doped vanadium oxide HF-VO 2 This material has different refractive indices at different temperatures, so that the effect of adjusting the effective refractive index of the resonant ring 20 can be achieved, and then the corresponding resonance wavelength can be adjusted.

[0023] In this embodiment, the reason why the resonant ring 20 is covered with hafnium-doped vanadium oxide instead of directly covering vanadium oxide is that vanadium oxide has different heating and cooling conditions when changing the refractive index, that is, at the same temperature, vanadium oxide corresponds to The two refractive indices cannot be precisely controlled by changing the temperature; whil...

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Abstract

The invention discloses an annular resonator capable of accurately regulating resonant frequency. The annular resonator comprises a straight waveguide and a resonation ring coupled with the straight waveguide, wherein a hafnium-doped vanadium oxide film is coated on the resonation ring. A layer of phase-change material hafnium-doped vanadium oxide HF-VO2 which has different refractive indexes under different temperatures is coated on the resonation ring, so that the function of regulating the effective refractive index of the resonation ring can be achieved and the corresponding resonant wavelength can be regulated.

Description

technical field [0001] The invention belongs to the technical field of optical resonators, and in particular relates to a ring resonator which can precisely regulate the resonant frequency. Background technique [0002] Optical resonators are common filtering devices. A ring resonator is a type of resonator whose structure is as figure 1 As shown, it includes a straight waveguide and a ring waveguide coupled with it. When light propagates in the straight waveguide, light of a certain wavelength is coupled into the ring waveguide to attenuate the energy, thereby achieving the effect of filtering. However, this traditional common resonator does not have the function of adjusting the resonant frequency, and its filtering wavelength, that is, the resonant wavelength, is determined once the device structure is determined, and it is not adjustable. Contents of the invention [0003] Based on this, in order to solve the above problems, the present invention proposes a ring reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/00
CPCG02F1/009
Inventor 黄太星李继涛杨定宇杨军
Owner CHENGDU UNIV OF INFORMATION TECH
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