27 July 2016 Extremely low-loss, dispersion flattened porous-core photonic crystal fiber for terahertz regime
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Abstract
A porous-core octagonal photonic crystal fiber (PC-OPCF) with ultralow effective material loss (EML), high core power fraction, and ultra flattened dispersion is proposed for terahertz (THz) wave propagation. At an operating frequency of 1 THz and core diameter of 345  μm, simulation results display an extremely low EML of 0.047  cm−1, 49.1% power transmission through core air holes, decreased confinement loss with the increase of frequency, and dispersion variation of 0.15  ps/THz/cm. In addition, the proposed PCF can successfully operate in single-mode condition. All the simulations are performed with finite-element modeling package, COMSOL v4.2. The design can be fabricated using a stacking and drilling method. Thus, the proposed fiber has the potential of being an effective transmission medium of broadband THz waves.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Saiful Islam, Mohammad Rakibul Islam, Mohammad Faisal, Abu S. M. S. Arefin, Hasan Rahman, Jakeya Sultana, Sohel Rana, "Extremely low-loss, dispersion flattened porous-core photonic crystal fiber for terahertz regime," Optical Engineering 55(7), 076117 (27 July 2016). https://doi.org/10.1117/1.OE.55.7.076117 . Submission:
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