activity
20052025
most citedAthermal and tunable echelle grating wavelength demultiplexers using a Mach-Zehnder interferometer launch structure

8 citations · 19 across the 9 of their papers we have counts for

collaborators

10 papers

physics.optics2025

Free space optics in two dimensions: optical elements for silicon photonics without lateral confinement

Siegfried Janz, Shurui Wang, Rubin Ma +2

Silicon photonic components based on freely propagating beams in 220 nm thick Si slab waveguides are described and characterized. Examples include optical relays, waveguide crossin…

physics.optics2025

Planar Waveguide Circulating Gaussian Beam Resonators on a Silicon Photonic Chip

Siegfried Janz, Shurui Wang, Rubin Ma +2

A Si slab waveguide resonator design with a circulating Gaussian-like cavity mode is described and characterized, for both all-pass and add-drop configurations and several differen…

physics.optics2024★ 6 cited

End-to-end simulations of photonic phase correctors for adaptive optics systems

Dhwanil Patel, Momen Diab, Ross Cheriton +8

Optical beams and starlight distorted by atmospheric turbulence can be corrected with adaptive optics systems to enable efficient coupling into single-mode fibers. Deformable mirro…

physics.optics2023

Perfectly vertical silicon metamaterial grating couplers with large segmentation periods up to 650 nm

Jianhao Zhang, Daniele Melati, Yuri Grinberg +7

Perfectly vertical grating couplers leveraging metamaterials can achieve both high coupling efficiency and minimal back reflection. The fabricability of these designs, with segment…

physics.optics2023

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…

physics.optics2023

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…

physics.optics2022★ 8 cited

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.…

physics.app-ph2020

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…

physics.optics2020★ 5 cited

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…

nucl-ex2005

Study of the dissipative binary channels in the 107Ag+58Ni reaction at 52 MeV/nucleon

INDRA, CHIMERA Collaborations, : +3

The binary dissipative channels are characterized by the presence of two main fragments in the exit channel. They have been studied in the 107Ag+58Ni reaction at 52 MeV/nucleon of…