Generation of Pulsed Laser Radiation at 1002 nm with a Quantum Defect of 2.6%

Abstract

Low-quantum-defect pulsed oscillation at 1002 nm was achieved with a Yb:LuPO4 miniature crystal rod laser longitudinally pumped by a 976-nm diode laser, with a GaAs semiconductor saturable absorber to induce passive Q-switching. With 17.2 W of pump power absorbed in the crystal rod, an average output power of 0.85 W was generated at a repetition rate of 3.7 kHz, the resulting pulse energy, duration, and peak power were 230 μJ, 5.5 ns, and 41.8 kW, respectively.

Keywords

• Yb laser
• Q-switched
• 4 crystal%22%2C%22default_operator%22%3A%22AND%22%7D%7D%7D"> Yb:LuPO<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">4</sub> crystal
• GaAs saturable absorber.