A. A. Shaikin, A. P. Fokin, A. A. Soloviev, A. A. Kuzmin, I. A. Shaikin, K. F. Burdonov, A. V. Charukhchev, E. A. Khazanov, “Laser amplifier based on a neodymium glass rod 150 mm in diameter”, Kvantovaya Elektronika, 2014, Volume 44, Number 5,Pages <nobr>426

This article is cited in 8 papers

Lasers

Laser amplifier based on a neodymium glass rod 150 mm in diameter

A. A. Shaikin^a, A. P. Fokin^a, A. A. Soloviev^a, A. A. Kuzmin^a, I. A. Shaikin^a, K. F. Burdonov^a, A. V. Charukhchev^b, E. A. Khazanov^a

^a Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod
^b Public Limited Company "Scientific research Institute for Optoelectronic Instrument Engineering", Sosnovy Bor, Leningrad region

Abstract: A unique large-aperture neodymium glass rod amplifier is experimentally studied. The small-signal gain distribution is measured at different pump energies. The aperture-averaged gain is found to be 2.3. The stored energy (500 J), the maximum possible pump pulse repetition rate, and the depolarisation in a single pulse and in a series of pulses with a repetition rate of one pulse per five minutes are calculated based on the investigations performed. It is shown that the use of this amplifier at the exit of the existing laser can increase the output pulse energy from 300 to 600 J.

Keywords: large-aperture amplifier, neodymium glass, induced birefringence, thermally induced depolarisation.

PACS: 42.55.Rz, 42.60.Da, 42.60.Jf, 42.25.Ja

Received: 03.03.2014
Revised: 02.04.2014