This article is cited in 12 papers

Extreme laser radiation: physics and fundamental applications

Yb : YAG thin-rod laser amplifier with a high pulse energy for a fibre oscillator

I. I. Kuznetsov, I. B. Mukhin, O. V. Palashov

Institute of Applied Physics of the Russian Academy of Sciences, Nizhnii Novgorod

Abstract: High (more than ten times) small-signal gain is demonstrated in an Yb : YAG single crystal thin rods with pumping by a fibre-coupled diode laser. A four-pass amplifier for a fibre master oscillator with an average output power exceeding 15 W at a pulse repetition rate of 3 MHz is fabricated based on this active element. The small-signal gain in the developed amplifier is 26 dB, which is comparable with the gain in regenerative amplifiers. The possibility of obtaining sub-millijoule pulse energy at a pulse repetition rate of tens of kilohertz is shown.

Keywords: solid state laser amplifiers, diode-pumped Yb : YAG lasers, high average power.

Received: 08.02.2016

 English version: Quantum Electronics, 2016, 46:4, 375–378

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