The Design of a Continuous Wave Molecular Nitrogen Stimulated Raman Laser in the Visible Spectrum
Abstract
Hollow-core photonic crystal fibers (HCPCFs) shows promise as a hybrid laser with higher nonlinear process limits and small beam size over long gain lengths. This work focuses on the design of a CW molecular nitrogen (N2) stimulated Raman laser. N2 offers Raman gains scaling up to 900 amg, scaling higher than H2. The cavity experiment showed the need to include Rayleigh scattering in the high pressure required for N2 Raman lasing. Even at relatively low pressures such as 1,500 psi, high conversion percentages should be found if the fiber length is chosen based on the pump and gain, 15 m for N2 at 1500 psi with a predicted 87 percent conversion of the 4.2 W coupled from the 532 nm pump.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 04, 2020
- Accession Number
- AD1108426
Entities
People
- Timothy Bate
Organizations
- Air Force Institute of Technology