Millijoule Femtosecond Pulses at 5 kHz from cw-Pumped Ho:YAG Regenerative Amplifier

P. Malevich; G. Andriukaitis; T. Flöry; A. J. Verhoef; A. Fernandez; S. Ališauskas; A. Pugžlys; A. Baltuška; L. H. Tan; L. H. Tan; C. F. Chua; P. B. Phua; P. B. Phua; P. B. Phua

2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
(Optica Publishing Group, 2013),
paper CA_8_2

Millijoule Femtosecond Pulses at 5 kHz from cw-Pumped Ho:YAG Regenerative Amplifier

P. Malevich, G. Andriukaitis, T. Flöry, A. J. Verhoef, A. Fernandez, S. Ališauskas, A. Pugžlys, A. Baltuška, L. H. Tan, C. F. Chua, and P. B. Phua

The European Conference on Lasers and Electro-Optics 2013

Munich Germany
12–16 May 2013
ISBN: 978-1-4799-0594-2

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High Inversion Laser System (CA_8)

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P. Malevich, G. Andriukaitis, T. Flöry, A. J. Verhoef, A. Fernandez, S. Ališauskas, A. Pugžlys, A. Baltuška, L. H. Tan, C. F. Chua, and P. B. Phua, "Millijoule Femtosecond Pulses at 5 kHz from cw-Pumped Ho:YAG Regenerative Amplifier," in 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference, (Optica Publishing Group, 2013), paper CA_8_2.

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Abstract

The gain bandwidth of Ho-doped crystals is sufficiently broad to support femtosecond operation, which would allow pumping of ultrashort-pulse mid-IR optical parametric amplifiers (OPAs) [1,2] and, upon reaching adequate peak powers, eye-safe filamentation in the >2-μm transparency window of the atmosphere. In this contribution, we report on, to our knowledge, the first demonstration of a femtosecond cw-pumped Ho:YAG chirped pulse amplifier (CPA) system operating at room temperature and producing broadband pulses supporting ~440 fs pulse durations at the energy level of up to 3 mJ at a 5-kHz repetition rate.

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