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(Color online) Absorption and emission spectra of Yb:YAG ceramic doped with Yb and absorption spectrum of Cr:YAG ceramic doped with Cr at room temperature.
(Color online) Schematic diagram for passively -switched Yb:YAG ceramic miniature laser with ceramic as saturable absorber.
(Color online) Average output power as a function of the absorbed pump power for passively -switched ceramic miniature laser. Inset (a) shows the output beam profile and transverse beam profile and (b) shows the measured beam quality factors.
(Color online) (a) Laser emission spectra under different pump powers in this passively -switched Yb:YAG/Cr:YAG all ceramic miniature laser; (b) transmittance curves of -thick , -thick fused silica output coupler (OC), and their transmittance product. Resonant modes are also plotted for illustration.
(Color online) (a) Oscilloscope trace of passively -switched pulse trains; (b) passively -switched laser pulse with pulse width (FWHM) and pulse energy, corresponding to peak power of over .
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