Abstract
We investigate femtosecond-pulse propagation through large-core microstructured fibers. Although these fibers are highly multimode, excitation of the fundamental mode is readily achieved, and coupling to higher-order modes is weak even when the fiber is bent or twisted. For prechirped input pulses with energies as large as 3 nJ, pulses as short as 140 fs were produced at the output of the fiber. Such a system could prove to be extremely useful for applications such as in vivo multiphoton microscopy and endoscopy that require delivery of femtosecond pulses and collection of fluorescence.
© 2002 Optical Society of America
Full Article | PDF ArticleMore Like This
Werner Göbel, Axel Nimmerjahn, and Fritjof Helmchen
Opt. Lett. 29(11) 1285-1287 (2004)
S. W. Clark, F. Ö. Ilday, and F. W. Wise
Opt. Lett. 26(17) 1320-1322 (2001)
S. H. Lee, A. L. Cavalieri, D. M. Fritz, M. Myaing, and D. A. Reis
Opt. Lett. 29(22) 2602-2604 (2004)