Continuous wave and passively Q-switched Nd:Lu _xY_1-x VO_4 laser at 134 μm with V^3+:YAG as the saturable absorber

Abstract

we demonstrated a diode-pumped continuous wave and passively Q-switched Nd:Lu x Y 1-x VO 4 laser at 1.34 μm with V 3+ :YAG as the saturable absorber. The crystal Nd:Lu x Y 1-x VO 4 with equal ionic ratio (x = 0.5) shows better laser performance. The maximum continuous wave output power of 1.45 W was obtained with the optical efficiency of 20.1% and the slope efficiency of 24.5%. For the pulsed operation, the minimum pulse width achieved was 42 ns with the pulse repetition frequency of 142 kHz, and the single pulse energy and the peak power were estimated to be 6.62 μJ and 157.6 W, respectively. Opt. Commun. 230(1-3), 191-195 (2004). 12. J. Liu, J. Wang, and J. He, "Diode-pumped passively Q-switched c-cut Nd:GdVO4 laser," Opt. Commun. 219(1-6), 317-321 (2003

Passively Q-switched tri-wavelength Yb^3+:GdAl_3(BO_3)_4 solid-state laser with topological insulator Bi_2Te_3 as saturable absorber

“…For decades, many successful Q-switched lasers have been realized by exploiting a variety of SAs such as transitionelement-doped (Cr 4 [7,8], V 3 [9,10], and Co 2 [11]) host materials and semiconductor saturable absorber mirrors (SESAMs) [12][13][14][15]. However, it should be noted that the applications of these traditional SAs are somehow limited due to their narrow absorption band and high cost.…”

Actively Q-switched performance of a mixed crystal Nd:Lu0.5Y0.5VO4 at 1.34 μm

“…2. The output power linearly increased with the incident pump power, and the max imum output power was 0.48 W at the pump power of 7.26 W with the transmission of 8%, resulting in an optical conversion efficiency of 6.61% and a slope effi ciency of 8.51%, and the threshold pump power was 1.62 W. Compared with the results in [23], the lower output power is because the longer cavity length of 80 mm leads to larger diffraction loss and poorer mode matching. When the couplers with the transmission of 3 and 15% at 1.34 µm were exploited, the highest out put power was 0.34 W and 0.3 W, corresponding to an optical conversion efficiency of 4.68 and 4.13%, respectively.…”

“…And we compared the characteristics of mixed crystal Nd:Lu x Y 1 -x VO 4 with different ionic ratio 0.15/0.85 and 0.5/0.5. The results indicate that the Nd:Lu x Y 1 ⎯ x VO 4 crystal with 0.5/0.5 ionic ratio shows better laser performance for passively Q switching at 1.34 µm and the pulse width of 42 ns was attained [23]. In this paper, the actively Q switched Nd:Lu 0.5 Y 0.5 VO 4 laser performance at 1.34 µm is demonstrated for the first time to the best of our knowledge.…”

Diode pumped Nd:Lu0.5Y0.5VO4-LBO red laser at 671 nm

“…The intracavity frequency doubling of the 1.3 μm solid state laser is one of the most attractive ways to produce an efficient and reliable red light source for the above mentioned applications. The four level 1.3 μm continuous wave laser emission was recently investigated for Nd:YVO 4 , Nd:YAG, and Nd:GdVO 4 [30][31][32][33][34][35][36][37] [44].To the best of our knowledge, the corresponding frequency doubled red lasers have not been reported. In this paper, an efficient CW 671 nm intracavity fre quency doubling red laser based on diode pumped Nd:Lu 0.5 Y 0.5 VO 4 /LBO is demonstrated.…”