CW optically pumped 12. 08 micron Raman laser - theory and experiments for high power-conversion efficiency

Journal Article · Tue Nov 01 04:00:00 EST 1983 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1983.1071775· OSTI ID:6762994

Julien, F; Wazen, P

A model is developed to predict the performance of the continuous-wave CO2-pumped 12.08 micron NH3 laser which is operated by a two-photon or Raman-like process. The local gain and pump absorption are determined from a two-wave three-level treatment based on the density matrix formalism. A ring cavity configuration is considered and interaction of the two intensities inside the cavity are described using coupled wave equations. The subsequent 12.08 micron output intensity is calculated for a wide range of operational parameters (injected pump intensity, NH3 gas pressure, pump frequency offset, gain length, output coupling, etc.). For a well optimized system, power-conversion efficiencies of 10-30 percent should be realistically obtained by pumping with a conventional CW CO2 laser. Experiments illustrating the major conclusions are described. 28 references.

• Research Organization: Paris XI Universite, Orsay, Essonne, France
• OSTI ID: 6762994
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-19; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMMONIA
CARBON DIOXIDE LASERS
EFFICIENCY
GAS LASERS
HYDRIDES
HYDROGEN COMPOUNDS
LASER CAVITIES
LASERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OPTICAL PUMPING
PERFORMANCE
PUMPING