190 citations · 776 across the 15 of their papers we have counts for
16 papers
Integrated astrophotonic phase control for high resolution optical interferometry
Ross Cheriton, Siegfried Janz, Glen Herriot +2
Long baseline optical interferometry and aperture synthesis using ground-based telescopes can enable unprecedented angular resolution astronomy in the optical domain. However, atmo…
Optical wavefront phase-tilt measurement using Si-photonic waveguide grating couplers
Siegfried Janz, Dan-Xia Xu, Yuri Grinberg +5
Silicon photonic wavefront phase-tilt sensors for wavefront monitoring using surface coupling grating arrays are demonstrated. The first design employs the intrinsic angle dependen…
Measurement Accuracy in Silicon Photonic Ring Resonator Thermometers: Identifying and Mitigating Intrinsic Impairments
Siegfried Janz, Sergey Dedyulin, D. -X. Xu +4
Silicon photonic ring resonator thermometers have been shown to provide temperature measurements with a 10 mK accuracy. In this work we identify and quantify the intrinsic on-chip…
Astrophotonic Solutions for Spectral Cross-Correlation Techniques
Suresh Sivanandam, Ross Cheriton, Polina Zavyalova +7
Using photonic devices, we developed a new approach to traditional spectroscopy where the spectral cross-correlation with a template spectrum can be done entirely on-device. By cre…
PCA-Boosted Autoencoders for Nonlinear Dimensionality Reduction in Low Data Regimes
Muhammad Al-Digeil, Yuri Grinberg, Daniele Melati3 +5
Autoencoders (AE) provide a useful method for nonlinear dimensionality reduction but are ill-suited for low data regimes. Conversely, Principal Component Analysis (PCA) is data-eff…
Athermal and tunable echelle grating wavelength demultiplexers using a Mach-Zehnder interferometer launch structure
Daniele Melati, Dan-Xia Xu, Ross Cheriton +5
We present a comparative experimental study of three silicon photonic echelle grating demultiplexers that are integrated with a Mach-Zehnder interferometer (MZI) launch structure.…
Fibre Fabry-Pérot Astrophotonic Correlation Spectroscopy for Remote Gas Identification and Radial Velocity Measurements
Ross Cheriton, Adam Densmore, Suresh Sivanandam +5
We present a novel remote gas detection and identification technique based on correlation spectroscopy with a piezoelectric tunable fibre-optic Fabry-Pérot filter. We show that the…
Design of Compact and Efficient Silicon Photonic Micro Antennas with Perfectly Vertical Emission
Daniele Melati, Mohsen Kamandar Dezfouli, Yuri Grinberg +5
Compact and efficient optical antennas are fundamental components for many applications, including high-density fiber-chip coupling and optical phased arrays. Here we present the d…
Spectrum-free integrated photonic remote molecular identification and sensing
Ross Cheriton, Suresh Sivanandam, Adam Densmore +11
Absorption spectroscopy is widely used in sensing and astronomy to understand molecular compositions on microscopic to cosmological scales. However, typical dispersive spectroscopi…
Isolator-free Integration of C-band InAs-InP Quantum Dash Buried Heterostructure Lasers with Silicon Waveguides
Jens H. Schmid, Mohamed Rahim, Grzegorz Pakulski +9
An InAs-on-InP quantum dash buried heterostructure laser and silicon chip optimized for mutual integration by direct facet-to-facet coupling have achieved -1.2 dB coupling efficien…
Photonic Temperature and Wavelength Metrology by Spectral Pattern Recognition
Siegfried Janz, Ross Cheriton, Dan-Xia Xu +8
Spectral pattern recognition is used to measure temperature and generate calibrated wavelength/frequency combs using a single silicon waveguide ring resonator. The ring generates t…
Mapping the global design space of nanophotonic components using machine learning pattern recognition
Daniele Melati, Yuri Grinberg, Mohsen Kamandar Dezfouli +5
Nanophotonics finds ever broadening applications requiring complex component designs with a large number of parameters to be simultaneously optimized. Recent methodologies employin…
Ultra-low power nonlinear optics in a high Q CMOS compatible integrated micro-ring resonator
M. Ferrera, D. Duchesne, L. Razzari +8
We demonstrate efficient, low power, continuous-wave four-wave mixing in the C-band, using a high index doped silica glass micro ring resonator having a Q-factor of 1.2 million. A…
High speed optical processing via four-wave-mixing in a silicon waveguide
F. Li, M. Pelusi, D-X. Xu +4
We demonstrate all-optical demultiplexing at 160 Gigabits per second in the C-band, based on nonlinear optics using four-wave mixing (FWM) in a silicon nanowire. We achieve error-f…
Silicon ring resonator based wavelength conversion via FWM at 10 Gb/s for differential phase-shift keyed signals
F. Li, M. Pelusi, D-X. Xu +4
We demonstrate all-optical wavelength conversion at 10 Gb/s for differential phase-shift keyed (DPSK) data signals in the C-band, based on four-wave mixing (FWM) in a silicon ring…
Silicon nanowire based exclusive-OR gate using nonlinear optics for 40Gb/s DPSK signals
F. Li, T. D. Vo, C. Husko +7
We demonstrate an all-optical XOR logic function for 40Gb/s differential phase-shift keyed (DPSK) data signals in the C-band, based on four-wave mixing (FWM) in a silicon nanowire.…