Q-switched chemical HF laser

Journal Article · Fri Jul 31 04:00:00 EDT 1998 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE1998V028N07ABEH001278· OSTI ID:21442575

Vorob'ev, A P; Iskhakov, V A; Mashendzhinov, Viktor I; Revich, V E; Rotinyan, Mikhail A; Shur, M A ^[1]

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1. Russian Science Centre 'Applied Chemistry', St Petersburg (Russian Federation)

A numerical simulation was made of pulse-periodic operation of an ultrasonic chemical HF laser with a Q-switched cavity. This simulation was based on a combination of mathematical models of cw and pulsed chemical lasers. Calculations were made specifically for an experimental HF chemical laser with a combustion chamber. It was found that pulse-periodic operation can ensure a 20-28-fold increase in the output power, compared with cw operation, at the expense of a reduction in the average radiation power by a factor less than 2. The energy per unit mass of the active medium increases with increase in the Q-switching frequency, reaching 60 kJ kg{sup -1} (which is half the value obtainable under cw conditions) at the switching frequency of 250 kHz. (lasers, active media)

• OSTI ID: 21442575
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 7 Vol. 28; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL LASERS
COMBUSTION CHAMBERS
COMPUTERIZED SIMULATION
FLUORINE COMPOUNDS
FREQUENCY RANGE
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
KHZ RANGE
KHZ RANGE 100-1000
LASER CAVITIES
LASERS
MATHEMATICAL MODELS
PERIODICITY
Q-SWITCHING
SIMULATION
VARIATIONS