Mid-infrared difference-frequency generation directly pumped by a fiber four-wave mixing source
Abstract
We demonstrate a new, to the best of our knowledge, method of generating mid-infrared pulses by difference frequency mixing the Stokes pulse generated by four-wave mixing in a photonic crystal fiber with the remaining pump pulse. The Stokes pulses generated by four-wave mixing are inherently overlapped temporally and spatially with the pump pulse at the output of the fiber. Focusing this output into a nonlinear crystal phase matched for difference frequency generation between the pump and Stokes pulses results in a simple method of generating mid-infrared pulses. With a pump source at 1.064 µm, and a photonic crystal fiber engineered to generate Stokes pulses at approximately 1.65 µm, we generate 160 mW of mid-infrared light at approximately 3 µm through difference frequency generation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 05, 2023
- Source ID
- 10.1364/ol.476754
Entities
People
- A. M. Chandran
- Alexandre Kudlinski
- Arnaud Mussot
- J. Roy Taylor
- R T Murray
- Ronan A. Battle
- Timothy Runcorn
Organizations
- Engineering and Physical Sciences Research Council
- Imperial College London
- University of Lille