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We report on orthogonally polarized dual-wavelength operation of a continuous-wave Yb:KGW laser. Gain equalization of the two wavelengths with the Nm- and Np-polarizations was attributed to the effect of anisotropic thermal lensing.
We investigate cavity length detuning in a picosecond synchronously pumped optical parametric oscillator based on an aperiodically poled nonlinear crystal. A strong dependence on the sign of the quasi-phase matching period chirp is observed.
Results on high-power oscillators based on Yb:CALGO in thindisk architecture are presented, in fs regime, 28W, 1.3μJ, 300 fs pulses and 20W, 0.9μJ, 197 fs pulses and in cw multimode regime 152W.
We present a mid-infrared optical-parametric-oscillator based on an Yb-frequency comb. The idler can be continuously tuned from 2.7 to 4.8 μm, generating an ideal source for frequency comb spectroscopy in the mid-infrared.
We fabricated sapphire whispering gallery mode cavities using laser-heated pedestal growth. By optimizing the growth condition we fabricated a cavity with a circular cross-section and obtained a Q of 1.6×104.
Simulation of quasi-phase-matching processes for ultrafast pulses in an intra-cavity pumped OPO is presented. Results reveal an effective cross phase modulation which introduces the coupling between OPO and pump cavities.
A Yb:YLF crystal is laser cooled to 150 K from room temperature in an intracavity geometry using a high power InGaAs/GaAs MQW VECSEL operating at 1020 nm with <0.5 nm linewidth.
Intracavity losses of Yb-ion laser oscillators cannot be properly estimated using the traditional Findlay-Clay analysis. This work provides a simple, accurate and dynamic technique to determine them based on the wavelength-dependent gain analysis.
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