来源:《Photonics Research》2019年第02期  作者:MACIEJ KOWALCZYK;TADEUSZ MARTYNKIEN;PAWE? MERGO;GRZEGORZ SOBO?;JAROS?AW SOTOR;
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Ultrabroadband wavelength-swept source based on total mode-locking of an Yb:CaF_2 laser

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We present an ultrabroadband, high-speed wavelength-swept source based on a self-modulated femtosecond oscillator. Photonic crystal fiber was pumped by a mode-locked Yb:CaF2 laser, resulting in a strong spectral broadening from 485 to 1800 nm. The pump laser cavity could be realigned in order to achieve total mode-locking of the longitudinal and transverse TEM00 and TEM01 electromagnetic modes. This led to spatial oscillations of the output beam, which induced modulation of the coupling efficien(本文共计5页)......[继续阅读本文]

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