Device and method for high-speed tuning soliton microcomb

Patent metadata

Field	Value
Publication number	US-2025085606-A1
Application number	US-202318286898-A
Country	US
Kind code	A1
Filing date	May 15, 2023
Priority date	May 13, 2022
Publication date	Mar 13, 2025
Grant date	—

Abstract

A device and method for high-speed tuning soliton microcomb comprising an on-chip high-Q lithium niobate (LN) microresonator as a comb resonator whose dispersion is engineered for soliton comb generation where a strong electro-optic Pockels effect is used to dynamically tune the soliton repetition rate, with integrating electrooptic tuning and modulation elements directly integrated into the comb resonator.

First claim

What is claimed is:

1 . A microwave-rate soliton microcomb for high-speed tuning soliton microcomb comprising an on-chip high-Q lithium niobate (LN) microresonator as a comb resonator whose dispersion is engineered for soliton comb generation where a strong electro-optic Pockels effect is used to dynamically tune the soliton repetition rate, by directly integrating electrooptic tuning and modulation elements into the comb resonator.

2 . The microwave-rate soliton microcomb of claim 1 , whose repetition rate can be tuned at a high speed.

3 . The microwave-rate soliton microcomb of claim 1 , wherein, by taking advantage of the strong electro-optic Pockels effect of LN and by integrating electro-optic tuning and modulation component directly into the LN comb resonator, a frequency modulation speed up to 75 MHz is achieved and a frequency modulation rate up to 1.0×1015 Hz/s.

4 . The microwave-rate soliton microcomb of claim 1 , wherein, the device exhibits a modulation efficiency of ˜2 MHz/V.

5 . The microwave-rate soliton microcomb of claim 1 , wherein, the demonstrated device offers a significant bandwidth (up to tens of gigahertz) for feedback locking of the repetition rate to an external reference source, enabling both direct injection locking and feedback locking to the comb resonator itself without involving external modulation.

6 . The microwave-rate soliton microcomb of claim 1 , wherein, the low-frequency phase noise is suppressed directly down to that of the reference source.

7 . The microwave-rate soliton microcomb of claim 1 , wherein, the demonstrated device and approach include soliton microcombs with high-speed dynamic modulation.

Assignees

• Univ Rochester

Inventors

• Lin Qiang
• He Yang

Classifications

• G02F2203/54

  Optical pulse train (comb) synthesizer · CPC title

• G02F2203/56

  Frequency comb synthesizer · CPC title

• G02F1/3517

  using an interferometer · CPC title

• G02F1/0154

  using electro-optic effects, e.g. linear electro optic [LEO], Pockels, quadratic electro optical [QEO] or Kerr effect · CPC title

• G02F2201/17

  Multi-pass arrangements, i.e. arrangements to pass light a plurality of times through the same element, e.g. by using an enhancement cavity · CPC title