Highly nondegenerate femtosecond four-wave mixing in tapered microstructure fiber
- 19 August 2002
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (8) , 1384-1386
- https://doi.org/10.1063/1.1501440
Abstract
We demonstrate efficient, highly nondegenerate four-wave mixing of femtosecond pulses, with a frequency shift of ∼6000 cm−1, in an 18 cm tapered microstructure fiber. Using a pump at 810 nm and a signal at 1540 nm, light is generated at wavelengths between 535 nm and 570 nm with 10% efficiency. Due to the walk-off between pump and signal pulses in the fiber, the interaction length in the tapered fiber is only 1.4 cm. Ten percent efficiency is achieved in this short length because of the enhanced nonlinearity of the tapered fiber and its unique dispersion characteristics.Keywords
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