Design of Single-Band Bandpass Filter Using Photonic Bandgap Fiber by Suppressing Core Modes in Higher Order Bandgaps

Autor: Zahra Kakaie, Barmak Honarvar Shakibaei, Yong Meng Sua, Desmond M. Chow, Ghafour Amouzad Mahdiraji, Faisal Rafiq Mahamd Adikan
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: IEEE Photonics Journal, Vol 7, Iss 3, Pp 1-14 (2015)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2015.2440756
Popis: We present two designs of all-solid photonic bandgap fiber (PBGF) for higher order bandgap suppression to realize a unique transmission window for optical filtering purposes. These two approaches are based on either applying a low-refractive-index core or a high-refractive-index background. This paper describes direct calculations of different modes in high-index rods in the all-solid PBGF using the antiresonant reflecting optical waveguide model for a double-cladded step index fiber. The flat-top single-band bandpass filter was obtained with potential center wavelength over ultraviolet, visible, and infrared regions. We achieve the single-band bandpass filter with minimum passband-to-rejection-band ratio of 20 dB in core power. From the calculated performance, both analytical and simulation results are in good agreement with confinement loss calculation.
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