Transmission of terahertz radiation using a microstructured polymer optical fiber

• Main Authors: Ponseca, Carlito S., Pobre, Romeric F., Estacio, Elmer, Sarukura, Nobuhiko, Argyros, Alexander, Large, Maryanne C.J., Van Eijkelenborg, Martin A.
• Format: text
• Published: Animo Repository 2008
• Subjects: Submillimeter waves; Plastic optical fibers—Microstructure; Time-domain analysis; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/4471
• Institution: De La Salle University

A hollow-core microstructured polymer optical fiber was analyzed in the terahertz (THz) region. Spectral analysis of time domain data shows propagation of THz waves in both the hollow-core and the microstructured cladding with a time delay of ∼20 ps. The frequency range and shift of the transmission bands between different sized waveguides suggested photonic bandgap or resonant guidance. Finite-difference time domain calculations agree relatively well to the experimental transmission results. Propagation losses were estimated to be as low as 0.9 dB/cm. © 2008 Optical Society of America.