Abstract

We report the formation of an ultrabroad supercontinuum down to 280 nm in the deep UV by pumping sharply tapered (5–30 mm taper lengths) solid-core photonic crystal fibers with 130 fs, 2 nJ pulses at 800 nm. The taper moves the point of soliton fission to a position where the core is narrower, a process that requires normal dispersion at the input face of the fiber. We find that the generation of deep-UV radiation is limited by strong two-photon absorption in the silica.

©2012 Optical Society of America

Deep-UV-enhanced supercontinuum generated in a tapered gas-filled photonic crystal fiber

Mallika Irene Suresh, Jonas Hammer, Nicolas Y. Joly, Philip St.J. Russell, and Francesco Tani
Opt. Lett. 46(18) 4526-4529 (2021)

Nanoscale all-normal dispersion optical fibers for coherent supercontinuum generation at ultraviolet wavelengths

Alexander Hartung, Alexander M. Heidt, and Hartmut Bartelt
Opt. Express 20(13) 13777-13788 (2012)

Supercontinuum generation in tapered fibers

T. A. Birks, W. J. Wadsworth, and P. St. J. Russell
Opt. Lett. 25(19) 1415-1417 (2000)

Low-threshold supercontinuum generation in highly nonlinear chalcogenide nanowires

Dong-Il Yeom, Eric C. Mägi, Michael R. E. Lamont, Michaël A. F. Roelens, Libin Fu, and Benjamin J. Eggleton
Opt. Lett. 33(7) 660-662 (2008)

Engineering the dispersion of tapered fibers for supercontinuum generation with a 1064 nm pump laser

C. M.B. Cordeiro, W. J. Wadsworth, T. A. Birks, and P. St.J. Russell
Opt. Lett. 30(15) 1980-1982 (2005)