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, Saiful Islam, Mohammad Rakibul Islam, Mohammad Rakibul Islam, Mohammad Faisal, Mohammad Faisal, Abu S. M. S. Arefin, Abu S. M. S. Arefin, Hasan Rahman, Hasan Rahman, Jakeya Sultana, Jakeya Sultana, Sohel Rana, 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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