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21 February 2008 Delivery of femtosecond pulses by hollow-core optical fiber
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Flexible hollow-glass fibers with inner coating of silver and polymer are employed for delivery of femtosceond laser pulses. In the experiment, ultrashort pulses with a pulse width of 196 fsec, energy of 0.7 mJ, and repetition rate of 1 kHz are transmitted with no damage on the hollow optical fiber. The transmission loss is 0.13 dB in the 1.0-mm bore fiber and pulse broadening after transmission in 1-m long fiber is 17 fsec. Theoretical calculation shows that the numbers of transmitted modes in the fiber is estimated from the pulse broadening.
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Yuji Matsuura "Delivery of femtosecond pulses by hollow-core optical fiber", Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 68810Z (21 February 2008);

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