65 citations · 119 across the 5 of their papers we have counts for
6 papers
Realization of a wide steering end-fire facet optical phased array using silicon rich silicon nitride
Hani Nejadriahi, Prabhav Gaur, Karl Johnson +3
The design, fabrication, and characterization of a 16-element optical phased array (OPA) using a high index (n = 3.1) silicon rich silicon nitride (SRN) is demonstrated. We present…
Demonstration of the DC-Kerr Effect in Silicon-Rich Nitride
Alex Friedman, Hani Nejadriahi, Rajat Sharma +1
We demonstrate the DC-Kerr effect in PECVD Silicon-rich Nitride (SRN) and use it to demonstrate a third order nonlinear susceptibility, \c{hi}^((3)), as high as (6 +/- 0.58)x10-19…
Efficient and compact thermo-optic phase shifter in silicon-rich silicon nitride
Hani Nejadriahi, Steve Pappert, Yeshaiahu Fainman +1
The design, fabrication, and characterization of low loss ultra-compact bends in high index (n = 3.1 at λ = 1550 nm) PECVD silicon rich silicon nitride (SRN) is demonstrated and ut…
Thermo-Optic Properties of Silicon-Rich Silicon Nitride for On-chip Applications
Hani Nejadriahi, Alex Friedman, Rajat Sharma +3
We demonstrate the thermo-optic properties of silicon-rich silicon nitride (SRN) films deposited using plasma-enhanced chemical vapor deposition (PECVD). Shifts in the spectral res…
Integrated All-Optical Fast Fourier Transform: Design and Sensitivity Analysis
Hani Nejadriahi, David HillerKuss, Jonathan K. George +1
The fast Fourier transform, FFT, is a useful and prevalent algorithm in signal processing. It characterizes the spectral components of a signal, or is used in combination with othe…
Towards On-Chip Optical FFTs for Convolutional Neural Networks
Jonathan George, Hani Nejadriahi, Volker Sorger
Convolutional neural networks have become an essential element of spatial deep learning systems. In the prevailing architecture, the convolution operation is performed with Fast Fo…