@inproceedings{d3a58f2da91944b89353ca0851b6c58e,
title = "Mode coupling in photonic crystal fiber using long-period gratings for enhanced overlap of evanescent field",
abstract = "An evanescent field sensing platform is being pursued through excitation of cladding modes using long-period (LPGs) inscribed in an endlessly single-mode photonic crystal fiber (ESM PCF) by CO2 laser irradiation. Core-cladding mode coupling and recoupling has resulted in significant improvement in the evanescent field overlap throughout the cladding air channels in the PCF-LPG, compared to the PCF alone. Our numerical simulation has shown that design optimization of the PCF-LPG configuration can lead to a field power overlap as high as 23% with a confinement loss of less than 1 dB/m in the cladding mode.",
keywords = "Evanescent field, Fiber Bragg gratings, Fiber design, Long-period gratings, Microstructured optical fibers, Photonic crystal fibers",
author = "Zonghu He and Yinian Zhu and Ji{\v r}{\'i} Ka{\v n}ka and Trevor, {Dennis J.} and Henry Du",
year = "2010",
doi = "10.1117/12.851732",
language = "English",
isbn = "9780819481412",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Fiber Optic Sensors and Applications VII",
note = "Fiber Optic Sensors and Applications VII ; Conference date: 07-04-2010 Through 08-04-2010",
}