The CW optically pumped 12. 08. mu. m 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:6671669

Julien, F; deTemple, T A; Lourtioz, J M; Wazen, P

A model is developed to predict the performance of the continuous-wave CO/sub 2/-pumped 12.08 ..mu..m NH/sub 3/ 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 ..mu..m output intensity is calculated for a wide range of operational parameters (injected pump intensity, NH/sub 3/ gas pressure, pump frequency offset, gain length, output coupling,...). For a well optimized system, power-conversion efficiencies of 10-30 percent should be realistically obtained by pumping with a conventional CWCO/sub 2/ laser. Experiments illustrating the major conclusions are described.

• Research Organization: Institut d'Electronique Fondamentele, Universite' Paris XI 91405 Orsay
• OSTI ID: 6671669
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 19:11; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
AMMONIA
AMPLIFICATION
CALCULATION METHODS
CARBON DIOXIDE LASERS
CHEMICAL LASERS
ELEMENTARY PARTICLES
EQUATIONS
GAIN
GAS LASERS
HYDRIDES
HYDROGEN COMPOUNDS
LASERS
MASSLESS PARTICLES
MATRICES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OPTICAL PUMPING
OPTIMIZATION
PERFORMANCE
PHOTONS
PUMPING
RAMAN EFFECT
RINGS