Broadband mid-infrared pulses from potassium titanyl arsenate/zinc germanium phosphate optical parametric amplifier pumped by Tm, Ho-fiber-seeded Ho:YAG chirped-pulse amplifier

We present a concept of a white-light-seeded-cascaded mid-infrared (mid-IR) optical parametric amplifier (OPA) based on potassium titanyl arsenate and zinc germanium phosphate nonlinear optical crystals and producing 100-μJ level pulses centered at 5300 nm, with the spectrum supporting four-optical-...

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Bibliographic Details
Published inOptics letters Vol. 41; no. 5; p. 930
Main Authors Malevich, Pavel, Kanai, Tsuneto, Hoogland, Heinar, Holzwarth, Ronald, Baltuška, Andrius, Pugžlys, Audrius
Format Journal Article
LanguageEnglish
Published United States 01.03.2016
Subjects
Arsenates
Holmium
Infrared Rays
Lasers, Solid-State
Optical Phenomena
Phosphates
Thulium
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Summary:We present a concept of a white-light-seeded-cascaded mid-infrared (mid-IR) optical parametric amplifier (OPA) based on potassium titanyl arsenate and zinc germanium phosphate nonlinear optical crystals and producing 100-μJ level pulses centered at 5300 nm, with the spectrum supporting four-optical-cycle pulse duration. The OPA is pumped by 2090-nm master oscillator/power amplifier based on a Tm,Ho-fiber laser seeder and a Ho:YAG regenerative amplifier delivering 3.8-mJ sub-ps pulses at a repetition rate of 1 kHz. We validate that output parameters of the OPA are scalable by means of increasing the pulse energy, decreasing the pulse duration and redshifting the central wavelength.
ISSN:1539-4794
DOI:10.1364/ol.41.000930