On behalf of the Organizing Committee and the Universidad Pública de Navarra (UPNA), we warmly invite you to the International Symposium on Optical Sensors - ISOS 2025. It is a privilege and a pleasure to host for the first time in Pamplona the ISOS symposium, aimed to be annual event for the vibrant optical sensing community. We are working hard to make the event an unforgettable scientific and social experience and our intention is to host a fully in-person event. The International Symposium on Optical Sensors (ISOS 2025) 2025 continues a series of events that provide a forum aimed to promote scientific exchange and foster close networking and collaborative ties among leading international researchers. This conference has organized thematic symposia covering the frontiers of multidisciplinary research in engineering structure testing, oil and gas well testing, environmental testing, biomedical testing, and process control. This congress features distinguished lecturers, invited speakers as well as oral presentations and poster sessions by leading scientists, experts, and scholars from around the world, at the forefront of the application of optical sensing technologies. It provides an excellent forum to present and discuss works on the emerging challenges offered by technology, in the areas of modeling, design, implementation and test of optical sensors. The technical program will include regular papers with emphasis on emerging topics including, but not limited to: Fiber Optic Sensors Integrated optics Sensors Optical Chemical sensors and biosensors Distributed Optical sensors New concepts in optical sensors Industrial applications of Optical Sensors AI combined with optical sensing Optical sensors networks Important Dates - Deadline for submission: March 31st, 2025 - Notification of acceptance: April 15th, 2025 - Registration opens: March 31st, 2025 - https://www.unavarra.es/isos2025/submissions?languageId=1#Form-submissions(https://www.unavarra.es/isos2025/submissions?languageId=1#Form-submissions) - (https://www.unavarra.es/digitalAssets/283/283736_1call_for_papers.pdf) We will also host a student poster competition that gives students the opportunity to briefly present their research advances and discuss with the conference attendees. The city of Pamplona, in northern Spain, is the capital of the autonomous region of Navarra. It is a historic destination world famous by writer Ernest Hemingway for its bullrunning festival which takes place every July. It is also the first Spanish city on the French route of the Camino de Santiago pilgrim’s Way. It is a top culinary destination where Michelin-starred chefs share the spotlight with locals preparing traditional “pintxos”. The region owns a privileged nature with must-do day trips: wineries, quaint towns of the Baztan Valley in the shadow of the Pyrenees, explosive colors of the Irati forest at Autumn, cider making, desert caves and the stunning villages along the Camino de Santiago. Co-sponsored by: Public University of Navarra Speaker(s): Jean, Ignacio, Minghong, Sanket, Anna Agenda: PROGRAM · ISOS 2025 Detailed information about the technical sessions can be found by downloading the following PDF file: (https://www.unavarra.es/digitalAssets/283/283643_1Program.pdf) Room: Nicolas García de los Salmones, Bldg: Los Olivos, Public University of Navarra, Campus Arrosadia, Pamplona, Navarra, Spain, 31006