Picosecond 34 mJ pulses at kHz repetition rates from a Ho:YLF amplifier at 2 µm wavelength | Zendy

Lorenz von Grafenstein | Zendy; Martin Böck | Zendy; Dennıs Ueberschaer | Zendy; Uwe Griebner | Zendy; Thomas Elsaesser | Zendy

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Picosecond 34 mJ pulses at kHz repetition rates from a Ho:YLF amplifier at 2 µm wavelength

Author(s) -

Lorenz von Grafenstein,

Martin Böck,

Dennıs Ueberschaer,

Uwe Griebner,

Thomas Elsaesser

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.033142

Subject(s) - optics , amplifier , materials science , picosecond , booster (rocketry) , laser , wavelength , pulse (music) , regenerative amplification , pulse duration , pulse wave , optical amplifier , optoelectronics , physics , cmos , astronomy , detector

A 2.051-µm laser source delivering picosecond pulses with energies as high as 34 mJ at a 1 kHz repetition rate is reported. The main amplifier system is based on Ho:YLF and consists of a regenerative amplifier (RA) and a single-pass booster amplifier running at room temperature. The continuous-wave pumped, high-gain RA produces pulse trains with up to 10-mJ energy when operating in a stable periodic doubling regime. The recorded complete RA bifurcation diagram agrees well with our numerical simulations. At the highest pulse energy after the booster amplifier the pulse-to-pulse fluctuations are as low as 0.9% rms. Pulse compression is performed up to the 10-mJ level resulting in a duration of 37 ps.

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