TY - JOUR
T1 - Topology Optimization framework for designing efficient Thermo-Optical Phase Shifters
AU - Jokisch, Benat Martinez de Aguirre
AU - Christiansen, Rasmus Ellebæk
AU - Sigmund, Ole
PY - 2024
Y1 - 2024
N2 - Thermo-Optical Phase Shifters (TOPS) have emerged as an important building block in silicon photonics platforms due to their ability to dynamically control the optical phase of light. To enable wide-scale adoption in practical applications, it is paramount that TOPS are optimized for low power consumption, low optical loss, small footprint, small thermal time constant, and easy fabrication, among others. In the last decades, multiple designs have emerged from intuition and trial and error based processes to match these objectives. In this work, we propose a topology optimization-based multiphysics inverse design framework for designing cross-sectionally compact low optical loss TOPS devices that can accommodate fabrication constraints. Results demonstrate the capability of tailoring novel designs with losses up to 33% lower than previously proposed designs.
AB - Thermo-Optical Phase Shifters (TOPS) have emerged as an important building block in silicon photonics platforms due to their ability to dynamically control the optical phase of light. To enable wide-scale adoption in practical applications, it is paramount that TOPS are optimized for low power consumption, low optical loss, small footprint, small thermal time constant, and easy fabrication, among others. In the last decades, multiple designs have emerged from intuition and trial and error based processes to match these objectives. In this work, we propose a topology optimization-based multiphysics inverse design framework for designing cross-sectionally compact low optical loss TOPS devices that can accommodate fabrication constraints. Results demonstrate the capability of tailoring novel designs with losses up to 33% lower than previously proposed designs.
U2 - 10.1364/JOSAB.499979
DO - 10.1364/JOSAB.499979
M3 - Journal article
SN - 0740-3224
VL - 41
SP - A18-A31
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 2
ER -