Nonlinear optical frequency conversion using metamaterial arrays
US-10054839-B1 · Aug 21, 2018 · US
Multi-mode cavities for high-efficiency nonlinear wavelength conversion formed with overlap optimization
US10353269B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10353269-B2 |
| Application number | US-201715443911-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2017 |
| Priority date | Feb 26, 2016 |
| Publication date | Jul 16, 2019 |
| Grant date | Jul 16, 2019 |
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Abstract
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A fully confined dual frequency optical resonator configured for optical coupling to light having a first frequency ω1. The dual frequency optical resonator includes a plurality of alternating layer pairs configured in a grating configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second material being different materials. Each layer having a thickness different than a thickness of an adjacent layer to provide thereby aperiodic layer pairs, the thicknesses of adjacent layers being selected to create, via wave interference with each layer, optical resonances at the first frequency ω1 and a second frequency ω2 which is a harmonic of ω1, and to ensure a maximum spatial overlap between confined modes over the materials such that an overall quality factor Q of at least 1000 is achieved.
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What is claimed is: 1. A fully confined dual frequency optical resonator configured for optical coupling to light having a first frequency cal, the dual frequency optical resonator comprising: a plurality of alternating layer pairs configured in a grating configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second materials being different material, each layer having a thickness different than a thickness of an adjacent layer to provide thereby aperiodic layer pairs, the thicknesses of adjacent layers being selected to create, via wave interference with each layer, optical resonances at the first frequency ω 1 and a second frequency ω 2 which is a harmonic of ω 1 , and to ensure a maximum spatial overlap between confined modes over the materials, and to enhance nonlinear coupling between the first frequency ω 1 and a second frequency ω 2 such that an overall quality factor Q of at least 1000 is achieved. 2. The dual frequency optical resonator of claim 1 wherein ω 2 is a second harmonic of ω 1 . 3. The dual frequency optical resonator of claim 1 wherein ω 2 is a third harmonic of ω 1 . 4. The dual frequency optical resonator of claim 1 wherein the thicknesses of the first and second layer are selected to ensure spatial overlap between confined modes to provide thereby a maximum amount of nonlinear coupling between the first frequency ω 1 and a second frequency ω 2 . 5. The dual frequency optical resonator of claim 1 wherein the first material is AlGaAs and the second material is Al2O3. 6. The dual frequency optical resonator of claim 1 wherein the first material is GaAs and the second material is SiO2. 7. The dual frequency optical resonator of claim 1 wherein the first material is lithium-niobate (LN) and the second material is air. 8. The dual frequency optical resonator of claim 1 wherein the first and second layer are formed in an etching process. 9. The dual frequency optical resonator of claim 1 , wherein maximum spatial overlap between confined modes over the materials is determined with respect to nonlinear coupling (ß) in accordance with the following equation: β _ = ∫ d r ϵ _ ( r ) E 2 * E 1 2 ( ∫ d r ϵ 1 E 1 2 ) ( ∫ d r ϵ 2 E 2 2 ) λ 1 3 .
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Semiconductor materials, e.g. quantum wells · CPC title
Crystals · CPC title
- G02F1/3501Primary
Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals · CPC title
Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams · CPC title
Physics · mapped topic
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- What does patent US10353269B2 cover?
- A fully confined dual frequency optical resonator configured for optical coupling to light having a first frequency ω1. The dual frequency optical resonator includes a plurality of alternating layer pairs configured in a grating configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second material be…
- Who is the assignee on this patent?
- Rodriguez Alejandro, Lin Zin, Johnson Steven G, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification G02F1/3501. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 16 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).