Nd:LuVO4 as a true three-level laser

Abstract

We report for the first time a Nd:LuVO 4 laser operating in a continuous wave (CW) on the true three-level laser at 880 nm, based on the 4 F 3/2 -4 I 9/2 transition. CW 345 mW output power at 880 nm is obtained under 18.2 W of incident pump power. Moreover, the intracavity second-harmonic generation (SHG) has also been achieved with a blue power of 37 mW by using a LiB 3 O 5 (LBO) nonlinear crystal. Output powers at 880 and 440 nm versus pump power at 809 nm

Passively Q-switched intracavity frequency-doubled Nd:LuVO4/LBO green laser with a Cr4+:YAG saturable absorber

“…However, the evolution of repetition frequency with increasing the pump power gradually deviated that of theoretical predict when the pump power was greater than 14 W. In such conditions, the pulse to pulse amplitude fluctuation increase, and sometimes the satellite pulse can be observed [8]. The cavity can be slightly tuned to obtain the stable pulse train and to eliminate the satellite pulse.…”

“…Recently, Nd:LuVO 4 has attracted considerable inter est because it has larger absorption and emission cross sections than those of Nd:YVO 4 and Nd:GdVO 4 [5]. Continuous wave Nd:LuVO 4 lasers emitting at differ ent wavelengths have been reported [6][7][8][9][10][11]. Addition ally, various lasers based on the Nd:LuVO 4 crystal, have been developed, including CW [6,7], actively Q switched [7], passively Q switched [13,14], passively mode locking [15], and self Raman lasers [16].…”

“…In a passively Q switched Nd doped laser, various saturable absorbers, such as Cr 4+ :YAG [8], V:YAG [21], GaAs [22], Co:LMA [23], and carbon nanotube [24], were used for the different emission wavelengths. In this work, a passively Q switched green Nd:LuVO 4 laser with a intracavity frequency doubling LBO crystal and a Cr 4+ :YAG saturable absorber was demon strated.…”

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

“…Neodymium (Nd) doped mixed vanadate crystals such as Nd:Gd x Y 1 -x VO 4 and Nd:Gd x Lu 1 -x VO 4 have drawn more interests in the fields of high peak power Q switching and mode locking lasers due to moderate stimulated emission cross section and larger fluores cence bandwidth [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Recently, a novel mixed crystal Nd:Lu x Y 1 -x VO 4 was grown by Fuzhou Univer sity and its continuous wave (CW) and Q switched operation at 1064 nm has been demonstrated success fully by our group.…”

Actively Q-switched intracavity frequency-doubled Nd:LuVO4/LBO green laser with an acousto-optic modulator

“…Compared with Nd:YVO 4 and Nd:GdVO 4 , Nd:LuVO 4 not only have larger absorption and emission cross sections but also preserve high thermal conductivity [4]. Continu ous wave Nd:LuVO 4 lasers have been achieved to emit at different wavelengths including 916 [5], 1066 [6], 1343 [7], and 880 nm under three level operation [8], and 915 nm under direct in band diode pump [9]. Additionally, various pulsed lasers based on the Nd:LuVO 4 crystal have been developed, including actively Q switching [6], passively Q switching [10], mode locking [11], and Q switched mode locking [12].…”