Related Experiment Video
Updated: Jun 29, 2025
07:42
Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
Published on: December 15, 2021
3.1K
Octave soliton microcombs in lithium niobate microresonators
Optics Letters
|April 1, 2024
Summary
Researchers created an octave-spanning soliton microcomb using thin-film lithium niobate. This breakthrough advances integrated photonic devices for optical communications and frequency synthesis.
Area of Science:
- Photonics
- Integrated Optics
- Nonlinear Optics
Background:
- Soliton microcombs are key for advanced applications like optical communications and atomic clocks.
- Octave-spanning spectra are crucial for self-referencing techniques in frequency metrology.
Purpose of the Study:
- To generate an octave-spanning soliton microcomb.
- To utilize thin-film lithium niobate (TFLN) for microcomb generation.
- To demonstrate a practical platform for integrated photonic devices.
Main Methods:
- Fabrication of a z-cut TFLN microresonator.
- On-chip optical pumping at 340 mW.
- Broadening of dual dispersive waves (DWs).
- Repetition rate measurement using an x-cut TFLN racetrack microresonator.
Main Results:
- Successful generation of an octave-spanning soliton microcomb.
- Demonstration of TFLN as a viable material for broadband microcombs.
- Accurate measurement of the microcomb's repetition rate.
Conclusions:
- This work is a significant step towards practical, integrated, and stabilized TFLN-based soliton microcomb systems.
- The developed microcomb platform supports key applications in optical communications, sensing, and metrology.
Related Concept Videos
01:30Oscillations In An LC Circuit
2.3K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
2.3K
01:28Standing Waves in a Cavity
918
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
918
01:12Double Resonance Techniques: Overview
201
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
201