996 resultados para Nd YV O4
Resumo:
aSiSiNSincSiSiNNd
Resumo:
We reported an efficient diode pumped Nd ! YVO, 1 064 nm laser passively mode-locked and Q-switched by a semiconductor saturable absorber mirror(SESAM). At the incident pump power of 7. 5 W, 2. 81 W average output power was obtained during stable CW mode locking with a repetition rate of 111 MHz. The optical conversion efficiency was 37. 5% , and the slope efficiency was 39%. So far as we know, this is the highest optical-optical conversion efficiency with a SESAM at home.
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A diode-pumped CW mode-locked Nd
Resumo:
Nd
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Ultrashort pulses were generated in passively mode-locked Nd:YAG and Nd:GdVO4 lasers pumped by a pulsed laser diode with 10-Hz repetition rate. Stable mode-locked pulse trains were produced with the pulse width of 10 ps. The evolution of the mode-locked pulse was observed in the experiment and was discussed in detail. Comparing the pulse evolutions of Nd:YAG and Nd:GdVO4 lasers, we found that the buildup time of the steady-state mode-locking with semiconductor saturable absorber mirrors (SESAMs) was relevant to the upper-state lifetime and the emission cross-section of the gain medium.
Resumo:
Q,GaAs,Nd:YVO4Q.Q,Q2W.9.2 W,15 ns,4.84 J,330 W,1.16 W;220 kHz360 kHz.
Resumo:
GaAs,NdGd0.42Y0.58VO4QNdGd0.42Y0.58VO4T=10%L=40 mm,8.6 W,3.78 W,43.9%NdGd0.42Y0.58VO4QQ2 W,3.7 W,Q;8.6 W,Q70%,670 kHz,180 ns,1.35 W,15.7%
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A flash-lamp-pumped Nd
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We report a diode end-pumped continuous wave (CW) passively mode-locked Nd:YVO4 laser with a homemade semiconductor saturable absorber mirror (SESAM). The maximum average output power is 5.3 W at the incident pump power of 17 W, which corresponds to an optical-optical conversion efficiency of 31.2% and slope efficiency of 34.7%. The corresponding optical spectrum has a 0.2-nm full width at half maximum (FWHM), and the pulse repetition rate is 83 MHz.
Resumo:
Two semiconductor saturable absorber mirrors (SESAMs), of which one is coated with 50% reflection film on the top and the other is not, were contrastively studied in passively mode-locked solid-state lasers which were pumped by low output power laser diode (LD). Experiments have shown that reducing the modulation depth of SESAM by coating partial reflection film, whose reflectivity is higher than that between SESAM and air interface, is an effective method to get continuous wave (CW) mode-locking instead of Q-switched mode-locking (QML) in low power pumped solid-state lasers. A simple Nd:YVO4 laser pumped by low power LD, in which no water-cooling system was used, could obtain CW mode-locking by the 50% reflector coated SESAM with average output power of ~ 20 mW
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1mNd
Resumo:
,NdYAG,5 W,11 ps200 nsQ,30 nJ,10 Hz2 nJ,15 Q,Q
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NdYAGNdYAG2 W10 ps,100 MHz
Resumo:
(LD)NdYAG500 W-NdYAG47%575 W-26.1%He-Ne
