Repetitively pulsed regime of Nd : glass large-aperture laser amplifiers

Journal Article · Mon Apr 30 04:00:00 EDT 2012 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2012V042N04ABEH014743· OSTI ID:22043974

Kuzmin, A A; Khazanov, Efim A; Shaykin, A A ^[1]

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1. Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russian Federation)

A repetitively pulsed operation regime of neodymium glass rod laser amplifiers with apertures of 4.5, 6, 8.5, and 10 cm is analysed using experimental data. The limits of an increase in the pulse repetition rates are determined. Universal dependences are obtained, which help finding a compromise between increasing the repetition rate and enhancing the gain for each particular case. In particular, it is shown that an amplifier 4.5-cm in diameter exhibits a five-fold safety factor with respect to a thermo-mechanical breakdown at a repetition rate of 1 pulse min{sup -1} and stored energy of above 100 J. A strong thermally induced birefringence in two such amplifiers is experimentally reduced to a 'cold' level by employing a 90 Degree-Sign optical rotator.

• OSTI ID: 22043974
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 42; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
APERTURES
BIREFRINGENCE
BREAKDOWN
GAIN
GLASS
LASERS
NEODYMIUM ADDITIONS
PULSES
SAFETY
STORED ENERGY