High-power tunable 385-. mu. m D/sub 2/O vapor laser optically pumped with a single-mode tunable CO/sub 2/ TEA laser

Journal Article · Thu Feb 01 04:00:00 EST 1979 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.326092· OSTI ID:6484033

Woskoboinikow, P; Praddaude, H C; Mulligan, W J; Cohn, D R; Lax, B

We demonstrate a 2-GHz tunability of the 385-..mu..m stimulated Raman transition of D/sub 2/O vapor optically pumped by the 9R (22) transition of a tunable single-mode CO/sub 2/ TEA laser. Power levels of up to 800 kW in 100-nsec pulses and conversion efficiency of CO/sub 2/ laser energy to D/sub 2/O laser energy at 385 ..mu..m of up to 0.4% have been obtained with a D/sub 2/O oscillator cavity. The TEA CO/sub 2/ pump laser, which consists of a grating and etalon tuned oscillator followed by an amplifier chain, produced 25-J 100-nsec single-mode pulses and was tunable +- 1 GHz around the 9R (22) line center. The present results indicate that tunable single-mode pump lasers are necessary in order to optimize high-power optically pumped laser systems and to produce narrow-linewidth spectral characteristics.

• Research Organization: Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 6484033
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
EFFICIENCY
EMISSION
ENERGY-LEVEL TRANSITIONS
FLUIDS
FREQUENCY SELECTION
GAS LASERS
GASES
HEAVY WATER
HYDROGEN COMPOUNDS
LASER CAVITIES
LASERS
LINE WIDTHS
OPTICAL PUMPING
OPTIMIZATION
OXYGEN COMPOUNDS
RAMAN EFFECT
STIMULATED EMISSION
VAPORS
WATER
WATER VAPOR