RT Conference Proceedings T1 Cascaded directional coupler-based polarization splitter/combiner on commercial silicon photonics integration platform A1 Spanidou, Kalliopi A1 Orbe Nava, Luis Jorge A1 González Guerrero, Luis A1 Hermann, Dan A1 Carpintero del Barrio, Guillermo AB Silicon photonic (SiPho) platforms hold vast potential for providing multi-functional processing capabilities, such as filtering, mode-handling, modulation, etc. Structures for polarization manipulation have become essential elements to enhance channel capacity and to facilitate polarization multiplexing functions. Therefore, 1x2 polarization beam splitters (PBS) are introduced as polarization-division key building blocks based on a silicon-on-insulator (SOI) platform for separating/combining the fundamental modes. By cascading three bent directional couplers (DC), high-performance coupling characteristics can be obtained similar to those of asymmetric ones. A first-ever integration of this kind of PBS has been achieved utilizing Tower Semiconductor's PH18MA silicon photonics platform, which offers 180 nm SOI process technology. In this work, both output ports of the proposed PBS are being tested for polarization filtering across a polarization sweep. The advanced features of this integration process pave the way for next-generation coherent transceivers and aim to meet future optical interconnecting requirements. Furthermore, Synopsys OptoCompiler and the Photonic IC Design Flow, featured in Tower¿s process design kit (PDK), were used to design the devices. PB Society of Photo-Optical Instrumentation Engineers (SPIE) SN 0277-786X YR 2023 FD 2023-03-17 LK https://hdl.handle.net/10016/37005 UL https://hdl.handle.net/10016/37005 LA eng NO Proceeding of: Integrated Optics: Devices, Materials, and Technologies XXVII (SPIE OPTO 2023), 28 January-3 February, San Francisco, California, United States NO Authors acknowledge TOWER Semiconductor for the fabrication of the chips and Synopsys Photonic Solutions support through the University Program. We acknowledge financial support by the TERAOPTICS project and TERAWAY project funded from the European Union’s research and innovation programs under grant agreements No. 956857 and No 871668, respectively and the CONEX-Plus project funded by UC3M and the European Union under grant agreement No. 801538. DS e-Archivo RD 18 jul. 2024