A linear temperature dependence between -70 degrees C and +70 degrees C is reported for the peak stimulated emission cross section of Nd3+ ions in both yttrium aluminum garnet (YAG) and gadolinium scandium gallium garnet (GSGG).
Abstract:A laser-diode-pumped passively-Q-switched intracavity-frequency-doubled Nd:YVO4/YVO4 green laser with a MgO-PPLN and Cr 4+ :YAG is realized. The dependences of pulse width, pulse repetition rate on incident pump power at different small-signal transmissions of Cr 4+ :YAG are measured for the green-light pulses. The corresponding pulse energy and peak power are also been obtained. Pulse energy of the Q-switched Nd:YVO 4 /YVO 4 green laser versus incident pump power
High efficient CW lasers at 1064 nm and 1342 nm were realized in a compact diode-end-pumped Nd:YVO4 slab. The maximum 1064 nm output power of 22.5 W was obtained under the pump power of 56.0 W, corresponding to the maximum optical conversion efficiency and slop efficiency of 40.1% and 50.1%, respectively. When the pump power was 34.7 W, the maximum output power at 1342 nm was obtained to be 4.4 W. The corresponding slope efficiency and the optical conversion efficiency were 17.9% and 12.6%, respectively.
Optical nonlinearities of zeolitic imidazolate framework-67 (ZIF-67) were determined in the near-infrared region. The high TPA cross section and large third-order susceptibility demonstrate the potential of ZIF-67 for nonlinear optical devices.
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