Data for photopolymerized-waveguide embedded Mach-Zehnder interferometer temperature sensor

High sensitivity optical fiber temperature sensors are extremely important in the domains of biology, medicine, and chemistry. To the best of our knowledge, this paper presents a novel designing framework for high-performing fiber temperature sensors. Photopolymerized-waveguide is embedded in typical Mach-Zehnder interferomenter framework with multimode fiber-single mode fiber-multimode (MSM) structure. The thermal-optical coefficient (TOC) of the photopolymerized waveguide core, which is created via the fiber-end lithography technique, is significantly different from that of the epoxy cladding. The phase difference between the interfering beams significantly rises with the changed temperature due to the large TOC difference. The critical factors influencing the temperature sensitivity are theoretically examined and experimentally confirmed. The suggested device achieves a typical temperature sensitivity of 1.151 nm/℃ in the range of 30-100 ℃, which is about 10 times as high as that of the all-fiber MSM sensors. The proposed designing framework provides a new idea for developing fiber optic temperature sensors with excellent performances.