J. Badziak et S. Jablonski, ULTRASHORT-PULSE GENERATION IN EXCIMER LASERS BY FAST MODE-LOCKING USING ELECTROOPTIC DEFLECTOR, IEEE journal of quantum electronics, 33(3), 1997, pp. 490-499
A novel method for ultrashort-pulse (USP) generation in excimer lasers
employing fast mode locking with the use of an electrooptic deflector
(EOD) is investigated numerically, In this method, a USP is formed by
a train of very short high-contrast-ratio transmission windows produc
ed in a cavity by a modulator composed of an EOD and a diaphragm, The
potential of this method and fundamental properties of USP generation
with its use are demonstrated taking a KrF laser as an example. It is
shown that the application of the EOD driven with both sine and square
wave of voltage enables one to obtain high-contrast-ratio light pulse
s of duration in the range 1-10 ps at the gain duration of only 50-100
ns, The pulses produced with this method are two orders of magnitude
shorter than those attainable with conventional mode locking, The meth
od is capable of being an efficient way for USP generation also in oth
er short-gain-duration lasers.