Abstract
To realize midinfrared multi-wavelength transmission within one octave, the
modified binary one dimensional photonic crystal (MB-1DPC) is introduced to the hollow
core Bragg fiber (HC-BF) as its cladding in this paper. Theoretical analysis shows that
the MB-1DPC could provide wider higher-order PBGs than the B-1DPC; hence, the HC-BF with
MB-1DPC cladding is prefer to realize multi-wavelength transmission within one octave by
two adjacent higher-order PBGs. A HC-BF sample with MB-1DPC cladding was fabricated and
measured. The fabricated fiber sample has two low loss transmission bands around 2137
cm<sup>-1</sup> and 3016 cm<sup>-1</sup>, with transmission losses of 3.50 dB/m and 3.79 dB/m,
respectively. The multi-wavelength transmission within one octave of the HC-BF with
MB-1DPC cladding has great potential in midinfrared multi-wavelength applications, such
as multi-species gas sensing and infrared gas lasers.
© 2012 IEEE
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