Generation Of 1 Khz, 2.3 Mj, 88 Fs, 2.5 Μm Pulses From A Cr2+:Znse Chirped Pulse Amplifier

Abstract

We demonstrate the generation of 2.3 mJ, 88 fs, 2.5 μm laser pulses at 1 kHz repetition rate from a three-stage chirped pulse amplifier employing Cr2:ZnSe crystals as the active gain media. 5 μJ seed of the amplifier is obtained via intrapulse difference frequency generation in a bismuth triborate (BIBO) crystal from spectrally broadened Ti: Sapphire amplifier output. A multi-pass amplifier followed by two single-pass amplifiers pumped by Q-switched Ho:YAG lasers boost the pulse energy to 6.5 mJ, yielding 2.3 mJ, 88 fs pulses upon pulse compression. Our results show the highest peak power at 2.5 μm with 1 kHz repetition rate. Such a laser will be a powerful source for studying strong-field physics and extending high-harmonic generation towards the keV region.

Publication Date

7-15-2018

Publication Title

Optics Letters

Volume

43

Issue

14

Number of Pages

3381-3384

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.43.003381

Socpus ID

85049837681 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85049837681

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