Computational and experimental study of a Q-switched cw chemical HF/DF laser

Journal Article · Sat Jun 30 04:00:00 EDT 2007 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2007V037N06ABEH013360· OSTI ID:21466688

Aleksandrov, Boris S; Maksimov, Yurii P; Mashendzhinov, Viktor I; Rotinyan, Mikhail A; Sudarikov, V V; Tret'yakov, Nikolai E; Fedorov, Igor' A; Etsina, Alla L ^[1]; Kuprenyuk, V I; Rodionov, A Yu ^[2]

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1. Russian Science Centre 'Applied Chemistry', St Petersburg (Russian Federation)
2. Institute for Laser Physics, Federal State Unitary Enterprise ' Scientific and Industrial Corporation 'Vavilov State Optical Institute', St. Petersburg (Russian Federation)

The energy and temporal parameters of radiation from a cw chemical medium-size HF/DF laser mechanically Q-switched by a mirror rotating at a frequency of up to 1 kHz are calculated and studied experimentally. The peak power of laser pulses in the repetitively pulsed regime exceeds the cw output power of the HF laser at least by a factor of four. The average power in the repetitively pulses regime is lower than that in the cw regime, but it increases (approximately doubles) with increasing modulation frequency. The time of the complete recovery of the gain profile in the active medium is measured to be 6-7 {mu}s. Two numerical models are developed which describe the dynamics of Q-switched HF and DF lasers. Some specific features of the operation of these lasers are analysed with the help of these models. (control of laser radiation parameters)

• OSTI ID: 21466688
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 6 Vol. 37; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFICATION
CONTROL
DEUTERIUM COMPOUNDS
ELECTROMAGNETIC RADIATION
FLUORINE COMPOUNDS
FREQUENCY MODULATION
FREQUENCY RANGE
GAIN
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
KHZ RANGE
LASER RADIATION
LASERS
MATHEMATICAL MODELS
MIRRORS
MODULATION
OPERATION
PEAK LOAD
PULSES
Q-SWITCHING
RADIATIONS