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Multimode Kerr optical frequency comb generation device based on two-dimensional material nanobelt

A technology of two-dimensional materials and nanoribbons, applied in optical components, instruments, optics, etc., can solve problems such as regulating Kerr optical frequency combs, achieve the effect of lowering the threshold, reducing costs, and realizing mass production

Active Publication Date: 2022-07-29
TIANJIN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on the above research progress, the current waveguide-integrated Kerr optical frequency combs are all aimed at the generation or regulation of a single mode in the resonator, and there are no public reports on the regulation of Kerr optical frequency combs for different spatial waveguide modes, which limits to a certain extent Application of Kerr Optical Frequency Comb in Multimode Devices and Systems

Method used

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  • Multimode Kerr optical frequency comb generation device based on two-dimensional material nanobelt
  • Multimode Kerr optical frequency comb generation device based on two-dimensional material nanobelt
  • Multimode Kerr optical frequency comb generation device based on two-dimensional material nanobelt

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Embodiment 1

[0044] As shown in Figure 2(a), the waveguide material is selected as silicon material, the insulating cladding material is selected as alumina material, the width W of the waveguide layer in the multimode micro-resonator is 600 nm, the width W1 of the plate 1 is 300 nm, and the waveguide layer is 300 nm. The layer thickness H is 500 nm, the thickness H1 of the plate 1 is 150 nm, the thickness H2 of the plate 2 is 70 nm, the two-dimensional material nanoribbons are set to graphene, the graphene width of the first layer of two-dimensional material nanoribbons 1 is set to 200 nm, and the second layer The graphene width of the two-dimensional material nanoribbon 2 is set to 120 nm, and the TE in the multi-mode micro-resonator 4 is calculated. 0 , TE 1 The dispersion curve of the mode is as image 3 shown. The Fermi levels of the first layer of 2D material nanoribbons 1 and the second layer of 2D material nanoribbons 2 are set to 1.0 eV and 0.4 eV, respectively, corresponding to...

Embodiment 2

[0051] As shown in Figure 2(a), the waveguide material is selected as silicon material, and the insulating cladding material is selected as alumina material. The layer thickness H is 500 nm, the thickness H1 of the plate 1 is 150 nm, the thickness H2 of the plate 2 is 70 nm, the two-dimensional material nanoribbons are set to graphene, the graphene width of the first layer of two-dimensional material nanoribbons 1 is set to 200 nm, and the second layer The graphene width of the two-dimensional material nanoribbon 2 is set to 120 nm, and the TE in the multi-mode micro-resonator is calculated. 0 , TE 1 The dispersion curve of the mode is as image 3 shown. The Fermi levels of the first layer of 2D material nanoribbons 1 and the second layer of 2D material nanoribbons 2 are set to 0.5 eV and 1.0 eV, respectively, corresponding to TE 0 and TE 1 The waveguide optical losses of the modes are 2.1*10 -4 μm -1 and 4.4*10 -5 μm -1 . The spectral output of the dual-mode Kerr opt...

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Abstract

The invention discloses a multimode Kerr optical frequency comb generation device based on two-dimensional material nanobelts. The multimode Kerr optical frequency comb generation device comprises a first layer of two-dimensional material nanobelts, a second layer of two-dimensional material nanobelts, an insulator cladding, a multimode miniature resonant cavity, a first electrode pair, a second electrode pair, a third electrode pair, a coupling waveguide, an insulating layer and a substrate layer, the upper surface of the substrate layer is provided with an insulating layer, the upper surface of the insulating layer is provided with a multimode miniature resonant cavity, and the multimode miniature resonant cavity is sequentially provided with a first-layer two-dimensional material nanobelt and a second-layer two-dimensional material nanobelt. Insulator claddings are arranged between the multimode miniature resonant cavity and the first layer of two-dimensional material nanobelt and between the first layer of two-dimensional material nanobelt and the second layer of two-dimensional material nanobelt for realizing electrical isolation. The first electrode pair is connected with the first layer of two-dimensional material nanobelt, the second electrode pair is connected with the second layer of two-dimensional material nanobelt, and the third electrode pair is connected with the multimode micro resonant cavity.

Description

technical field [0001] The invention belongs to the field of integrated optoelectronics and nonlinear optics, in particular to a method for realizing a multimode Kerr optical frequency comb integrated with a waveguide based on a two-dimensional material nanobelt. Background technique [0002] Optical frequency combs are coherent light sources whose spectrum contains a series of strictly equidistant intervals and the phases of each spectral line are locked to each other. At present, there are many methods to generate optical frequency combs, among which, the waveguide-integrated Kerr optical frequency comb is a very promising method. In this method, third-order nonlinear effects such as phase modulation, cross-phase modulation, and four-wave mixing in waveguide devices are used, combined with modulation instability, to generate Kerr optical frequency combs. Waveguide-integrated Kerr frequency combs have the advantages of wide spectral range, low pump power, high frequency st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/10G02B6/293G02F1/35
CPCG02B6/10G02B6/2938G02B6/2934G02F1/353
Inventor 程振洲陈威成郭荣翔贺祺万典胡浩丰刘铁根
Owner TIANJIN UNIV
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