Optical Frequency Up-Conversion of Infrared Femtosecond Laser Pulses into Visible Pulses by Cherenkov Radiation and Intermodal Four-Wave Mixing in Photonic Crystal Fibers
- Detailed Technology Description
- An apparatus and method for generating a substantially supercontinuum free, widely tunable, multi-milliwatt source of radiation.
- Countries
- United States
- Application No.
- 8305682
- *Abstract
-
An apparatus and method for generating a substantially supercontinuum free, widely tunable, multi-milliwatt source of radiation.
Large Stokes shift (~4700cm-1) four-wave mixing is generated in a deeplynormal dispersion regime from a 20 cmcommercial large-mode-area photoniccrystal fiber pumped by amplified ~800nm femtosecond pulses. The phase-matching condition is realized throughan intermodal scheme involving twopump photons in the fundamental fibermode and a pair of Stokes/anti-Stokesphotons in a higher-order fiber mode.Over 7% conversion efficiency from thepump input to 586 nm anti-Stokes signalhas been attained.
For more information about this technology, please contact the University of Illinois at Urbana-Champaign Office of Technology Management at otm@illinois.edu.
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- *IP Issue Date
- None
- *IP Type
- Utility
- Country/Region
- USA
