21 April 2017 Dual-hole unit-based kagome lattice microstructure fiber for low-loss and highly birefringent terahertz guidance
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Abstract
A low-loss microstructure fiber is numerically investigated for convenient transmission of polarization maintaining terahertz (THz) waves. The dual-hole units (DHUs) are used inside the core of the kagome lattice microstructure to achieve high birefringence and low effective material loss (EML). It is demonstrated that by rotating the axis of orientation of the DHUs, it is possible to obtain low EML of 0.052    cm 1 , low confinement loss of 0.01    cm 1 , and high birefringence of 0.0354 at 0.85 THz. It is also reported that the transmission properties of the proposed microstructure fiber are varied with rotation angle, core diameter, and operating frequencies. Other guiding characteristics, such as single-mode propagation, power fraction, and dispersion, are also discussed thoroughly.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Md. Rabiul Hasan, Sanjida Akter, Tania Khatun, Ahmmed A. Rifat, Md. Shamim Anower, "Dual-hole unit-based kagome lattice microstructure fiber for low-loss and highly birefringent terahertz guidance," Optical Engineering 56(4), 043108 (21 April 2017). https://doi.org/10.1117/1.OE.56.4.043108 . Submission: Received: 25 January 2017; Accepted: 4 April 2017
Received: 25 January 2017; Accepted: 4 April 2017; Published: 21 April 2017
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