Performance analysis of thermally bonded Er~(3+), Yb~(3+):glass/Co~(2+):MgAl_2O_4 microchip lasers

摘要

The new glass as well as Co~(2+):MgAl_2O_4 saturable absorber synthesis, especially developed for thermal bonding, was described. The procedure of thermal bonding was presented. Generation parameters of continuous wave operation at 1.5 μm wavelength were shown. The threshold below 180 mW and slop efficiency over 10 % was reached. Pulse generation in thermally bonded and unbonded as well as monolithic Er~(3+), Yb~(3+):-glass/Co~(2+):MgAl_2O_4 microchip lasers was compered. The peak power above 10 kW with pulse energy above 32 μJ and pulse width 3.2 ns was achieved.