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
Original Manuscript: June 18, 1999
Revised Manuscript: November 8, 1999
Published: March 20, 2000
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)