We examine the performance of a hybrid Q-switched LiNbO3 and Er3+–Yb3+ doped glass waveguide laser as a modulation function of the duty cycle ratio. As the duty cycle ratio decreases, the laser operates at higher peak power and pulse width. At low duty cycle ratio (<1%), we observe variations in the Q-switched pulse shape; while the laser produces 59-W and 200-ns pulses to a 1-kHz repetition rate for a 50% duty cycle, it yields 27-W and 100-ns pulses to a 10-kHz repetition rate for a 0.01% duty cycle.
© 2000 Optical Society of America
Aydin Yeniay, Jean-Marc Delavaux, Jean Toulouse, and William J. Minford, "Duty Cycle Ratio Dependence on the Performance of a Q-Switched Laser with an Er3+-Yb3+ Codoped Glass Waveguide," Appl. Opt. 39, 1430-1434 (2000)