Paper
4 March 2019 Compact and versatile OPG-OPA based on a periodically poled nonlinear crystal pumped by femtosecond Ytterbium fiber laser
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Abstract
A 10 mm long PPLN crystal pumped by 125 nJ, 250 fs pulses centered at 1035 nm yielded by Yb3+ femtosecond fiber oscillator generates femtosecond signal and idler pulses tunable in the 1.35 μm - 1.65 μm and 2.6 μm - 4.2 μm spectral ranges. A numerical model accounting for both second- and third-order nonlinear processes well agree with the recorded signal conversion efficiency (up to 42%), the spectral and temporal profile of the generated pulses. Pulse to pulse stability is drastically improved injecting this compact and versatile device with a continuum generated in a photonic fiber. Further improvements are discussed.
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Valerian Freysz, Gabriel Amiard-Hudebine, Yoann Zaouter, and Eric Freysz "Compact and versatile OPG-OPA based on a periodically poled nonlinear crystal pumped by femtosecond Ytterbium fiber laser", Proc. SPIE 10902, Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII, 109021J (4 March 2019); https://doi.org/10.1117/12.2505769
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KEYWORDS
Femtosecond phenomena

Fiber lasers

Nonlinear crystals

Ytterbium

Optical parametric oscillators

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