Cavity ringdown refractive index sensor using photonic crystal fiber interferometer

• Main Authors: Chan, Chi Chiu, Wong, Wei Chang, Zhou, Wenjun, Dong, Xinyong, Leong, Kam Chew
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Chemical engineering
• Online Access: https://hdl.handle.net/10356/97863; http://hdl.handle.net/10220/12120
• Institution: Nanyang Technological University

A refractive index sensor is demonstrated by integrating a photonic crystal fiber (PCF) Mach–Zehnder interferometer (MZI) into a cavity ringdown loop for improved sensitivity. By splicing a short section of PCF between two single-mode fibers and collapsing air holes over a short region at two splici...