Abstract
A diode end-pumped doubly Q-switched laser has been realized for the first time to our knowledge by using both an electro-optic (EO) modulator and a saturable absorber. A pulse width is generated by this laser under a pump power of at , which is obviously compressed in comparison with that of from a single actively EO Q-switched laser. Under the same conditions, peak power values of 174.7 and are also obtained. A coupled equation is given to theoretically analyze the experimental data. The experimental and theoretical results show that the doubly Q-switched laser has the advantages of a shorter pulse width and higher pulse peak power in contrast with a singly Q-switched laser.
© 2009 Optical Society of America
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