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Compact 4-kHz XeF laser with a multisectional discharge gap

Journal Article · · Quantum Electronics (Woodbury, N.Y.)
; ; ; ;  [1]
  1. Russian Federal Nuclear Center 'All-Russian Scientific Research Institute of Experimental Physics', Sarov, Nizhnii Novgorod Region (Russian Federation)
A XeF electric-discharge laser with a pulse repetition rate f of up to 4 kHz is developed. The laser electrode unit is based on plate electrodes with inductive-capacitive discharge stabilisation. He and Ne are used as buffer gases, and NF{sub 3} serves as a fluorine donor. A narrow ({approx}1 mm) discharge is achieved; the specific energy deposition per unit length of the active volume is as high as 2 J m{sup -1}. The maximum energy in a laser pulse is {approx}3 mJ for NF{sub 3}-Xe-He and NF{sub 3}-Xe-Ne mixtures at total pressures of 0.8 and 1.2 atm, respectively, and the maximum lasing efficiency is {approx}0.73%. The maximum gas velocity in the working gap is 19 m s{sup -1}. The laser-pulse energy at a high pulse repetition rate (4 kHz) virtually coincides with that obtained at a low repetition rate. The mean output pulse power at f = 4 kHz reaches 12 W, and the rms deviation of the laser-pulse energy is {approx}2.5%. (lasers)
OSTI ID:
21470745
Journal Information:
Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 35; ISSN 1063-7818
Country of Publication:
United States
Language:
English