A compact erbium glass laser for laser ranging is designed and its output characteristics are experimentally studied.Experiment results show that using a 940 nm semiconductor laser pump,when the output power is 12 W,the pump pulse width is 1.6 ms,the passively Q-switched crystal T0 is 92%,the output mirror reflectivity R is 90%,the output will be the pulse laser of center wavelength 1 535 nm,the pulse width will be 5ns,the single pulse energy will be 502 μJ,the repetition frequency will be 10 Hz.The compact laser structure size can be controlled at 32 mm×12 mm×8 mm,weight<10 g.
Er:Yb:glasseye safe laserpassive Q-switchingmicrochip laserwide temperature range
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