167 citations · 173 across the 5 of their papers we have counts for
5 papers
Interferometric modal splitting enables a broadband, dual-polarization on-chip spectrometer
Karl Johnson, Vladimir Fedorov, Dmitrii Belogolovskii +3
The modal dispersion of waveguides often limits integrated photonic devices to operation with a single polarization state. This presents a challenge for sensing and spectroscopy ap…
Large Bidirectional Refractive Index Change in Silicon-rich Nitride via Visible Light Trimming
Dmitrii Belogolovskii, Md Masudur Rahman, Karl Johnson +6
Phase-sensitive integrated photonic devices are highly susceptible to minor manufacturing deviations, resulting in significant performance inconsistencies. This variability has lim…
A systematic evaluation of Silicon-rich Nitride Electro-optic Modulator design and tradeoffs
Alex Friedman, Dmitrii Belogolovskii, Andrew Grieco +1
We present a study of linearized \c{hi}^((3)) based electro-optic modulation beginning with an analysis of the nonlinear polarizability, and how to linearize a modulator based on t…
Multirate Spectral Domain Optical Coherence Tomography
Prabhav Gaur, Andrew Grieco, Yeshaiahu Fainman
Optical coherence tomography is state-of-the-art in non-invasive imaging of biological structures. Spectral Domain Optical Co-herence Tomography is the popularly used variation of…
Fourier transform spectrometer on silicon with thermo-optic non-linearity and dispersion correction
Mario C. M. M. Souza, Andrew Grieco, Newton C. Frateschi +1
The integration of miniaturized optical spectrometers into mobile platforms will have an unprecedented impact on applications ranging from unmanned aerial vehicles (UAVs) to mobile…