Experimental Study on Doubly QML Nd:Lu_0.15Y_0.85VO₄ Laser
with AO Modulator and Central SESAM¹

T. Feng^a, S. Zhao^a, *, G. Li^a, D. Li^a, K. Yang^a, G. Zhang^a, B. Zhao^b, and Y. Wang^c

^a School of Information Science and Engineering, Shandong University, Jinan 250100, China

^b College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

^c Research Center for Applied Sciences, Academia Sinica, Taiwan, China

*e-mail: shengzhi_zhao@sdu.edu.cn

Received December 3, 2011; in final form, December 5, 2011; published online April 3, 2012

Abstract—By using double-mixed crystal Nd:Lu_0.15Y_0.85VO₄ as laser medium, a diode-pumped doubly
Qswitched and mode-locked (QML) Nd:Lu_0.15Y_0.85VO₄ laser with acousto-optic (AO) modulator and central
semiconductor saturable absorption mirror (SESAM) is realized for the first time. The Q-switched envelope
modulation depth is nearly 100%.The average output power and the pulse width of the Q-switched envelope
etc. for different AO modulator repetition rates have been measured. The experimental result show that
Nd:Lu_0.15Y_0.85VO₄ crystal is an excellent laser medium for doubly QML lasers.

DOI: 10.1134/S1054660X1205009X

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