Broadband polarization-independent edge couplers with high efficiency based on SiN-Si dual-stage structure

Y Jiang, Z Zhang, P Liu - IEEE Photonics Journal, 2024 - ieeexplore.ieee.org
Silicon nitride (SiN) plays a critical role in silicon photonics because of its lower refractive
index, low waveguide loss, broad operating bandwidth and compatibility with …

Optical PAM-4/PAM-8 generation via dual-Raman process in Rydberg atoms

XY Song, Z Yin, GY Ren, MZ Han, AH Yang… - Chinese …, 2024 - iopscience.iop.org
A scheme of optical four-level pulse amplitude modulation (PAM-4) is proposed based on
dual-Raman process in Rydberg atoms. A probe field counter-propagates with a dual …

Adaptive Graphene-Based Electro-Optical Modulator

LAM Saito - phantomsfoundation.com
This study introduces an adaptive modulator for multilevel amplitude modulation utilizing
graphene-based capacitive segments integrated over planar waveguides. In the initial …