collaborators
Showing physics.opticsShow all

5 papers · 1 filter

physics.optics2026

Single-Mode Control of High-Speed and Low-Threshold III-V/Si Quantum Dot Microring Lasers via Azimuthal Gratings

Xucheng Yang, Yingtao Hu, Eunso Shin +9

Hybrid III-V/silicon quantum-dot microring lasers are compact, energy-efficient O-band sources, but their whispering-gallery cavities are inherently multimode and bidirectional, pr…

physics.optics2026

Demonstration and Design of Uni-Directional and Ultra-Low Threshold Hybrid Quantum Dot III-V/Si Micro-Ring Laser

Xucheng Yang, Yingtao Hu, Antoine Descos +8

Micro-ring lasers (MRLs) are attractive light sources for energy-efficient optical interconnects, but their intrinsic directional bistability leads to unpredictable clockwise/count…

physics.optics2026

Experimental Design Space Exploration of Ultra-Low Threshold Hybrid III-V/Si Quantum Dot Microring Lasers

Xucheng Yang, Preston Luong, Yatiraj Ramanujam +10

In this work, we report on the design strategies and experimental validation of ultra-low threshold () hybrid III--V/Si quantum dot (InAs/GaAs) micro-ring laser…

physics.optics2026

A Non-Volatile Heterogeneous Quantum Dot III-V/Si DFB Laser with Optical Memristive Behavior

Stanley Cheung, Bassem Tossoun, Di Liang +5

In this work, we introduce a non-volatile heterogeneous quantum dot (QD) III-V/Al2O3/Si distributed feedback (DFB) laser exhibiting optical memristive behavior. The device operates…

physics.optics2025

Heterogeneously Integrated Memristive Laser on Silicon with Non-Volatile Wavelength Tuning

Bassem Tossoun, Di Liang, Xia Sheng +2

The von-Neumann bottleneck has constrained computing systems from efficiently operating on the increasingly large demand in data from networks and devices. Silicon (Si) photonics o…