Diode-pumped lasers at five eye-safe wavelengths

The authors have built CW, single-frequency, and Q-switched diode-pumped lasers at 2.02 mu m using Tm:YAG and at 2.09 mu m using Tm, Ho:YAG. For CW-pumped Q-switched operation near room temperature, Tm:YAG performed much better. CW diode-pumped Nd:YAG lasers at 1.833 and 0.946 mu m were built. The 0.946- mu m laser was used to pump a Yb, Er:YAG laser, which oscillated at 1.623 mu m and a Yb, Er:Glass laser, which oscillated at 1.534 mu m.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>