Abstract
A design method for hollow optical fibers is shown that has a dielectric cover film loaded on the inner metal coating to obtain flexible fiberoptics transmitting a wide wavelength range in THz region with low loss. Spectral losses of fibers that are fabricated by two different methods are measured by using a broadband THz source. The loss of a fiber with an inner diameter of 3 mm was 1.3 dB/m at the wavelength of 200 μm, and the losses were lower than 3 dB in the wavelength region from 150 μm to > 250 μm. Because these fibers are flexible, robust, and highly efficient in a wide wavelength range, they are useful in remote THz spectroscopy.
Original language | English |
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Pages (from-to) | 1949-1954 |
Number of pages | 6 |
Journal | Journal of the Optical Society of America B: Optical Physics |
Volume | 25 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2008 Dec 1 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics