What is a micro ring resonator?
What is a micro ring resonator?
Microring resonators are critical photonic components used in filtering, sensing and nonlinear applications. Our microring resonators achieve an FSR greater than 5 nm for ring radius of 30 μm and a large 3 dB resonance bandwidth. We demonstrate 3 pm/V electro-optic tuning of a 70 μm-radius ring.
How does a ring resonator work?
In general a ring resonator consists of a looped optical waveguide and a coupling mechanism to access the loop. When the waves in the loop build up a round trip phase shift that equals an integer times 2π, the waves interfere constructively and the cavity is in resonance.
What are ring resonators made of?
Researchers at MIT and Singapore University of Technology (SUTD) have demonstrated a micro ring resonator made of amorphous silicon carbide with the highest quality factor to date. The resonator shows promise to be used as an on-chip photonic light source at the infrared telecom wavelength of 1,550 nanometers.
How do split ring resonators work?
A split-ring resonator (SRR) is an artificially produced structure common to metamaterials. A magnetic flux penetrating the metal rings will induce rotating currents in the rings, which produce their own flux to enhance or oppose the incident field (depending on the SRRs resonant properties).
Why is optical resonator needed in laser?
lasers. An optical resonator is needed to build up the light energy in the beam. The resonator is formed by placing a pair of mirrors facing each other so that light emitted along the line between the mirrors is reflected back and forth.
What is a Microring modulator?
Design and fabrication The microring modulator presented here consists of a ring resonator coupled to a neighboring bus waveguide. Tuning the effective index of the ring waveguide modifies the resonant wavelength which induces a strong modulation of the transmitted signal at the resonance wavelength.
What is silicon photonics?
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems.
What is waveguide in optical fiber?
An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum. Optical waveguides are used as components in integrated optical circuits or as the transmission medium in local and long haul optical communication systems.
What is complementary split ring resonator?
Abstract: Split Ring Resonators (SRR) and Complementary Split Ring Resonators (CSRR) are widely used to simulate metamaterial elements. Such elements are arranged uniformly in a periodic configuration and behave as artificial materials with unusual properties.
What are the types of resonators?
Resonators can be classified into two types; electromagnetic wave resonators, and electromechanical or (electro)acoustic wave resonators, based upon their principles of operation. Since the second type is mostly based on mechanical resonance, it is not usable in high frequency applications.
In general a ring resonator consists of a looped optical waveguide and a coupling mechanism to access the loop. When the waves in the loop build up a round trip phase shift that equals an integer times 2π, the waves interfere constructively and the cavity is in resonance.
Can silicon carbide resonator be used as a photonic light source?
Researchers at MIT and Singapore University of Technology (SUTD) have demonstrated a micro ring resonator made of amorphous silicon carbide with the highest quality factor to date. The resonator shows promise to be used as an on-chip photonic light source at the infrared telecom wavelength of 1,550 nanometers.
What is a photonic resonator and how does it work?
The resonator shows promise to be used as an on-chip photonic light source at the infrared telecom wavelength of 1,550 nanometers. Ordinary daylight will pass through a window unaltered, in a process called linear transmission, but the same light passing through a prism will split into a rainbow of colors.
What is the quality factor of a resonator?
Quality factor is a measure of how strongly the resonator produces nonlinear effects. “The larger the quality factor, the better the nonlinear effect,” says Tan, who leads the Photonics Devices and Systems Group at SUTD. “So in this case, the quality factor was pretty good.
