Abstract
An array of fused silica waveguiding channels with randomly distributed transverse sizes in a disordered microstructure fiber is shown to allow a highly efficient broadly tunable frequency conversion of low-energy ultrashort laser pulses. Dispersion can be switched in such waveguide arrays by coupling the pump field into waveguiding wires with different diameters. Microstructure-fiber-integrated random arrays of waveguides with diameters ranging from 0.6 up to 1.5 µm can frequency-convert unamplified subnanojoule Ti: sapphire laser pulses with an initial duration of 30 fs to any wavelength within a broad spectral range from 400 up to 700 nm, suggesting interesting fiber-optic strategies for multiplex frequency conversion and sensing.
©2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Stas O. Konorov and Aleksei M. Zheltikov
Opt. Express 11(19) 2440-2445 (2003)
Ming Lie Hu, Ching-yue Wang, Lu Chai, and Aleksei M. Zheltikov
Opt. Express 12(9) 1932-1937 (2004)
Stanislav O. Konorov, Evgenii E. Serebryannikov, Aleksei M. Zheltikov, Ping Zhou, Alexander P. Tarasevitch, and Dietrich von der Linde
Opt. Express 12(5) 730-735 (2004)