Silicon-rich nitride waveguides for ultra-broadband nonlinear signal processing
Artikel i vetenskaplig tidskrift, 2017

Silicon nitride (SixNy) waveguides constitute a technology platform to realize optical signal processing based on the nonlinear Kerr effect. Varying the stoichiometry of the core (i. e., x and y in silicon nitride) provides an additional degree of freedom for engineering the waveguide properties, such as nonlinear Kerr parameter and dispersion. We demonstrate low-stress high-confinement silicon-rich nitride waveguides with flat and anomalous dispersion over the entire C and L optical wavelength transmission bands for optical signal processing based on cross-phase modulation. The waveguides do not show any nonlinear loss for a measured optical input intensity of up to 1.5 x 109 W/cm(2). In particular, we achieve wavelength conversion of 10 Gb/s signals across the C band; XPM broadening is also observed in the O band. In addition, we highlight the use of SixNy waveguides for nonlinear microwave photonics. Specifically, we demonstrate radio-frequency spectral monitoring of optical signals with a bandwidth of hundreds of gigahertz.

Radiofrequency

Nanowire

Nanowaveguides

Optical Wavelength Conversion

Cross-Phase Modulation

640 GB/S

Amplifier

Fiber

Photonics

Spectrum Analyzer

Författare

Mohammad Rezagholipour Dizaji

McGill University

Clemens Krückel

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Attila Fülöp

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Victor Torres Company

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

L. R. Chen

McGill University

Optics Express

1094-4087 (ISSN)

Vol. 25 12100-12108

Ämneskategorier

Telekommunikation

Atom- och molekylfysik och optik

DOI

10.1364/OE.25.012100