Print Email Facebook Twitter 25.8 Gb/s Submillimeter Optical Data Link Module for Smart Catheters Title 25.8 Gb/s Submillimeter Optical Data Link Module for Smart Catheters Author Li, J. (TU Delft Electronic Components, Technology and Materials) Li, Chenhui (Eindhoven University of Technology) Henneken, Vincent (Philips Research) Louwerse, Marcus (Philips Innovation Services) Van Rens, Jeannet (Philips Research) Dijkstra, Paul (Philips Innovation Services) Raz, Oded (Eindhoven University of Technology) Dekker, R. (TU Delft Electronic Components, Technology and Materials; Philips Research) Date 2022 Abstract The digitization of smart catheters will dramatically increase the demand for reliable and high data transmission in the distal tips. Optical fiber is a good candidate to provide high-speed data transmission. However, the extremely small size of the smart catheter tip, with less than a few millimeters in diameter, hampers the integration of optical fiber connections in the catheter tip. Our work presents a stand-alone optical data link module (ODLM) with a dimension of 240 μm × 280 μm × 420 μm for use in a 1 mm diameter intravascular ultrasound (IVUS) smart catheter. The fabrication of the ODLM is based on the Flex-to-Rigid (F2R) integration technology. In the ODLM, the flexible interconnects reroute the electrical contacts of the flip-chipped vertical-cavity sur-face-emitting laser (VCSEL) to the side of the device. This design enables the ODLM to be mounted on a flex-PCB and fit into a 200-300 μm gap in the IVUS catheter tip. An optical fiber that runs parallel to the catheter shaft is self-aligned to a commercially available VCSEL by inserting it into the through-silicon hole (TSH) of the ODLM. Clear eye diagrams prove the stand-alone ODLM can transmit 25.8 Gb/s, 231-1 Pseudo-Random Binary Sequence (PRBS) when driven through a high-speed bias-tee. The BER test indicates that error-free operation can be achieved at an optical output of around -4 dBm. Subject CathetersContactsFlex-to-RigidMicroassemblyMicrofabricationOptical device fabricationOptical fibersOptical interconnectionsOptical transmittersSiliconSmart cathetersVertical cavity surface emitting lasers To reference this document use: http://resolver.tudelft.nl/uuid:6180ca9e-e6f1-4260-b422-2dc3312a5c07 DOI https://doi.org/10.1109/JLT.2021.3137981 ISSN 0733-8724 Source Journal of Lightwave Technology, 40 (8), 2456-2464 Part of collection Institutional Repository Document type journal article Rights © 2022 J. Li, Chenhui Li, Vincent Henneken, Marcus Louwerse, Jeannet Van Rens, Paul Dijkstra, Oded Raz, R. Dekker Files PDF 25.8_Gb_s_Submillimeter_O ... heters.pdf 5.34 MB Close viewer /islandora/object/uuid:6180ca9e-e6f1-4260-b422-2dc3312a5c07/datastream/OBJ/view