Experimental study on doubly QML Nd:Lu0.15Y0.85VO4 laser with AO modulator and central SESAM

Abstract

By using double mixed crystal Nd:Lu 0.15 Y 0.85 VO 4 as laser medium, a diode pumped doubly Q switched and mode locked (QML) Nd:Lu 0.15 Y 0.85 VO 4 laser with acousto optic (AO) modulator and cen tral semiconductor saturable absorption mirror (SESAM) is realized for the first time. The Q switched enve lope modulation depth is nearly 100%.The average output power and the pulse width of the Q switched enve lope etc. for different AO modulator repetition rates have been measured. The experimental result show that Nd:Lu 0.15 Y 0.85 VO 4 crystal is an excellent laser medium for doubly QML lasers.