Spectral characteristics and ultrahigh sensitivities near the dispersion turning point of optical microfiber couplers

• Main Authors: Li, Kaiwei, Zhang, Nancy Meng Ying, Zhang, Nan, Zhang, Ting, Liu, Guigen, Wei, Lei
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Dispersion Turning Point; Optical Fiber Sensors
• Online Access: https://hdl.handle.net/10356/141454
• Institution: Nanyang Technological University

We present a systematic study on the spectral characteristics and ultrahigh sensitivity near the dispersion turning point (DTP) of optical microfiber couplers. Numerical simulations reveal that a DTP exists when the group effective refractive index (RI) difference between the even mode and the odd m...