Longitudinal coupling effect in microfiber Bragg gratings

• Main Authors: Zhao, Ping, Zhang, Jihua, Wang, Guanghui, Jiang, Meng, Shum, Perry Ping, Zhang, Xinliang
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/99666; http://hdl.handle.net/10220/10652
• Institution: Nanyang Technological University

We theoretically present longitudinal coupling effect (LCE) in air-cladding microfiber Bragg gratings (MFBGs). Distinct from conventional weakly-guiding optical fibers, large longitudinal electric field (Ez) exists in wavelength-scale microfibers. Due to LCE, MFBG reflectivity can be reduced by more...