Abstract
Solid-state lasers based on Cr2+-doped II-VI materials have proven to be reliable sources for generating few-cycle pulses in the mid-infrared (2-3 µm) spectral range [1–3], making them highly attractive for spectroscopic applications [1]. Er:fiber and Tm:fiber lasers are currently the pump sources of choice for building high-power Cr:ZnS/ZnSe oscillators. However, they involve high initial costs and usually result in strong intensity noise features in the kHz-frequency range [2]. Recent improvements in output power of laser diodes, which have intrinsically lower intensity noise, render direct diode-pumping of Cr:ZnS/ZnSe lasers a viable alternative to common fiber-based schemes. Here, we report the first time that diode-pumping was applied to a Kerr-lens mode-locked oscillator with a Cr2+-doped II-VI gain material.
© 2019 IEEE
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