All-fiber optic humidity sensor based on photonic bandgap fiber and digital WMS detection

• Main Authors: Mohd. Noor, Muhammad Yusof, Khalili, Nasser, Peng, Gang Ding
• Format: Article
• Published: IEEE 2013
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/49927/; http://dx.doi.org/10.1109/JSEN.2013.2243013
• Institution: Universiti Teknologi Malaysia

We propose a novel non-hygroscopic humidity sensor based on a photonic bandgap fiber (PBF) and a digital wavelength modulation spectroscopy (WMS). PBF is employed as the sensing element due to the large overlap of transmitted light with humid air inside the core of the PBF. High sensitivity detectio...