8 papers · 1 filter
Polarization vector conjugation in a photonic integrated circuit
Anna J. Miller, Carson G. Valdez, Anne R. Kroo +5
We show how to perform polarization conjugation of light in a simple apparatus without any nonlinear optical materials, based on self-configuring Mach-Zehnder interferometers fed b…
Separating partially coherent light
Paul-Alexis Mor, Anne R. Kroo, Carson G. Valdez +9
Recent advances in optical imaging and communication increasingly involve high-dimensional, partially coherent light, creating a growing need for scalable tools to measure and mani…
Integrated Photonic Polarization Synthesizer and Analyzer
Carson G. Valdez, Anne R. Kroo, Anna J. Miller +3
Polarization-resolved control and measurement of the optical field are essential for a wide range of photonic systems, including coherent communication, polarimetric sensing, and q…
Programmable Optical Filters Based on Feed-Forward Photonic Meshes
Carson G. Valdez, Anne R. Kroo, Marek Vlk +4
We demonstrate an integrated photonic circuit based on feed forward photonic meshes that can be programmed and reconfigured to perform arbitrary spectral filter functions. We inves…
Three-Wave Interaction Grating Coupler with Sub-Decibel Insertion Loss at Normal Incidence
Carson G. Valdez, Simon A. Bongarz, Anne R. Kroo +4
We report the design, fabrication in a commercial foundry, and experimental results of high-efficiency, normal incidence grating couplers for silicon photonics. We observe a maximu…
Diffractive Retroreflector for Distributed Sensing
Anne R. Kroo, Olav Solgaard
We introduce a modified corner cube reflector that encodes information from passive optical sensors in its retroreflected diffraction pattern, enabling remote sensor-state measurem…