New cobweb-structure hollow Bragg optical fibers
A new type of Bragg fibers, i.e. hollow-core cobweb-structured optical fibers, which can be used to the low-loss transmission from visible to near infrared region (0.65 μ m-1.55 μ m), terahertz wave (200 μ m-480 μ m) and circular-polarization-maintaining single-mode transmission are investigated. Results show that the hollow-core cobweb-structured fibers have less loss than other hollow-core Bragg fibers. The fibers can be constituted by using the plastics or glasses with large absorption losses.
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