Low-loss air-core polarization maintaining terahertz fiber.
We propose a low-loss air-core polarization maintaining polymer fiber for terahertz (THz) wave guiding. The periodic arrangement of square holes with round corners in the cladding offers a bandgap effect for mode guiding. Numerical simulations show that the bandgap effect repels the modal power from the absorbent background polymers, resulting in a significant suppression of absorption loss of the polymers by a factor of more than 25. The phase-index birefringence of the proposed THz fiber is in the order of 10(-3).
Ren
Guobin
G
Network Technology Research Centre, Nanyang Technological University, Singapore. GBRen@ntu.edu.sg
Gong
Yandong
Y
Shum
Ping
P
Yu
Xia
X
Hu
JuanJuan
J
Wang
Guanghui
G
Ong Ling Chuen
Michael
M
Paulose
Varghese
V
D000388:Air; D003198:Computer Simulation; D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007259:Infrared Rays; D008872:Microwaves; D008962:Models, Theoretical; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry
D011108:Polymers