MZI interferometric fiber optic temperature sensor based on MFC. Issue 5 (3rd April 2022)

• Record Type: Journal Article
• Authors: Yang, Tianyu; Feng, Yue; Tang, Mingda; Liu, Chi; Liu, Xin; Zhang, Jinmeng; Shen, Tao
• Other Names: Ma Yufei guestEditor.; Kan Ruifeng guestEditor.; Mei Liang guestEditor.; Ma Weiguang guestEditor.
• Is Part Of: Microwave and optical technology letters. Volume 65:Issue 5(2023)
• Page Start: 1208
• Page End: 1214
• Publication Date: 2022-04-03
• Subjects: biological embryo incubation -- Mach Zender -- MFC -- temperature sensing; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.33250
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: For biological embryo incubation, it is very important to monitor temperature accurately, so a new Mach–Zder interference (MZI) fiber temperature sensor is based on a microfiber coupler (MFC). It consists of a 3 dB fiber coupler and MFC forming an MZI structure. Since the MFC has strong evanescent field properties, higher sensitivity can be generated when fully acting with the external temperature environment. The experimental results show that the optical fiber sensor has good temperature response properties in the temperature range of 24–38°C, and the temperature sensitivity increases rapidly as the MFC waist diameter decreases. The maximum wavelength sensitivity of approximately 191.93 pm/°C and R 2 = 0.98739, with the advantages of high sensitivity, simple manufacturing, and low cost can be applied in the field of bioincubation temperature monitoring.