Publication

Observation of stimulated Brillouin scattering in silicon nitride integrated waveguides

Luc Thévenaz, Tobias Kippenberg, Junqiu Liu, Arslan Sajid Raja, Jijun He, Flavien Gyger
2020
Conference Papers

Abstract

We report the first observation of backward stimulated Brillouin scattering in fully cladded Si3N4 waveguides. The intrinsic Brillouin gain at 25 GHz and the photoelastic constant are estimated to be 4 × 10−13 m/W and |p12| = 0.047 ± 0.004 respectively.

Official source

https://infoscience.epfl.ch/entities/publication/f876c720-3b51-49eb-8687-225983ad7baa

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Luc Thévenaz, Tobias Kippenberg, Junqiu Liu, Arslan Sajid Raja, Jijun He, Flavien Gyger
2020
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f876c720-3b51-49eb-8687-225983ad7baa

About this result

Related concepts (6)

Silicon photonics

Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).

Photonic integrated circuit

A photonic integrated circuit (PIC) or integrated optical circuit is a microchip containing two or more photonic components which form a functioning circuit. This technology detects, generates, transports, and processes light. Photonic integrated circuits utilize photons (or particles of light) as opposed to electrons that are utilized by electronic integrated circuits. The major difference between the two is that a photonic integrated circuit provides functions for information signals imposed on optical wavelengths typically in the visible spectrum or near infrared (850–1650 nm).

Band gap

In solid-state physics and solid-state chemistry, a band gap, also called a bandgap or energy gap, is an energy range in a solid where no electronic states exist. In graphs of the electronic band structure of solids, the band gap refers to the energy difference (often expressed in electronvolts) between the top of the valence band and the bottom of the conduction band in insulators and semiconductors. It is the energy required to promote an electron from the valence band to the conduction band.

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