In-line hollow-core fiber-optic bandpass filter

• Main Authors: Xiong, Daiqi, Wu, Xu, Muhammad Rosdi Abu Hassan, Gavara, Trivikramarao, Chang, Wonkeun
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Antiresonant; Fiber-Optics
• Online Access: https://hdl.handle.net/10356/157755
• Institution: Nanyang Technological University

We present an antiresonant hollow-core fiber-based bandpass optical filter. The device is realized by tapering down a section of tubular hollow-core fiber to a ratio of less than 0.5. Sweeping of the tube wall thickness-induced resonant bands in the down- and up-transition sections of the taper supp...