Browsing by Author "Chen, Li-Jin"

Now showing 1 - 3 of 3

Investigation on spectral loss characteristics of subwavelength terahertz fibers
(2007-05-01)
Chen, Hung-Wen
;
Li, Yu-Tai
;
Pan, Ci-Ling
;
Kuo, Jeng-Liang
;
Lu, Ja-Yu
By measuring the spectral loss characteristics of subwavelength-diameter terahertz fibers, our study supports the recent theory proposed by M. Sumetsky [Opt. Lett. 31, 870 (2006)] that diameter-variation-induced radiation is a dominant loss mechanism for subwavelength fibers in the low- (<1%) core-fraction-power regime. This physical mechanism limits the lowest guidable frequency in a subwavelength fiber. (c) 2007 Optical Society of America.
Spectral Loss Characteristics of Subwavelength THz Fibers
(2007)
Chen, Hung-Wen
;
Lu, Ja-Yu
;
Chen, Li-Jin
;
Li, Yu-Tai
;
Pan, Ci-Ling
From the spectral loss characteristics of subwavelength-diameter THz fibers, our study supports the recent theory proposed by M. Sumetsky that diameter-variation-induced-radiation is a dominant loss mechanism for subwavelength fibers which limits the lowest guidable frequency. (C) 2007 Optical Society of America
THz Fiber Directional Coupler
(2007)
Chen, Hung-Wen
;
Lu, Ja-Yu
;
Chen, Li-Jin
;
Chiang, Po-Jui
;
Chang, Hung-Chun
We demonstrated a THz subwavelength fiber coupler for future millimeter wave applications. Unlike traditional optical fiber couplers, its coupling ratio is independent of the length of the coupling region because of the anti-symmetric mode cutoff. (C) 2007 Optical Society of America