Related Experiment Video
Updated: Jul 10, 2026
07:42
Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
Published on: December 15, 2021
Gap solitons in a two-channel microresonator structure.
Optics Letters
|November 17, 2007
Summary
Coupling channel waveguides with microresonators creates low dispersion, enabling gap soliton excitation at lower energies than Bragg reflection methods.
Area of Science:
- Photonics
- Nonlinear Optics
- Waveguide Optics
Background:
- Waveguide dispersion management is crucial for nonlinear optical phenomena.
- Gap solitons are localized light waves in periodic structures.
- Bragg gratings are commonly used for dispersion control.
Purpose of the Study:
- To investigate the dispersion properties of coupled channel waveguides with microresonators.
- To demonstrate the excitation of gap solitons in this system.
- To compare the energy requirements for gap soliton excitation with Bragg gratings.
Main Methods:
- Theoretical analysis of coupled channel waveguides and microresonators.
- Numerical simulations of light propagation and soliton formation.
- Analysis of group-velocity dispersion near resonant frequencies.
Main Results:
- Low group-velocity dispersion is achieved near the resonant frequency of microresonators.
- Gap solitons can be excited with significantly lower energy compared to Bragg gratings.
- The microresonator coupling provides an alternative to traditional Bragg reflection for dispersion control.
Conclusions:
- Microresonator-coupled waveguides offer a novel approach for low-dispersion light propagation.
- This method facilitates efficient gap soliton generation at reduced energy levels.
- Potential applications in nonlinear optics and optical signal processing.
Related Concept Videos
01:28Standing Waves in a Cavity
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:
01:26Resonance in an AC Circuit
The property of an inductor makes it resist any change in the current passing through it, while the property of a capacitor is to build up the charge across its terminals. Hence, if an inductor and capacitor are connected in series, they have opposite effects on the relative phase between current and voltage. The current through the circuit undergoes forced oscillation at the frequency of the source. The resistance term in an R-L-C circuit acts as a damping term because power is dissipated...
01:14Sound Waves: Resonance
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
01:31Oscillations In An LC Circuit
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
01:12Double Resonance Techniques: Overview
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...
01:24Characteristics of Series Resonant Circuit
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as: