Diode pumped Nd:YAG laser repetitively Q-switched with Cr4+:YAG

Qinyong Zeng; Yong Wan; Dayong Zhu; Kai Han
September 2009
Optics & Spectroscopy;Sep2009, Vol. 107 Issue 3, p498
Academic Journal
Based on the rate equations of passively Q-switched solid state lasers, the performance of laser at a fixed pump power can be optimized through the proper choice of output coupler and the low-intensity transmission of saturable absorber. A simple expression for optimizing these two parameters is derived in this paper. We also demonstrate the performance of an efficient diode-pumpe Cr4+:YAG passively Q-switched Nd:YAG laser to generate a high-repetition-ate, high-peak power 1064 nm laser pulses, which providing pulses peak power > 10 kW with high repetition rate up to 150 kHz, and the pulse width as short as 6.8 ns.


Related Articles

  • GaInAs/AlAsSb quantum-cascade lasers operating up to 400 K. Yang, Q.; Manz, C.; Bronner, W.; Mann, Ch.; Kirste, L.; Köhler, K.; Wagner, J. // Applied Physics Letters;3/28/2005, Vol. 86 Issue 13, p131107 

    Above room-temperature (T>=400 K) operation of GaInAs/AlAsSb-based quantum-cascade lasers has been demonstrated. The lasers are based on vertical-transition active regions and consist of 25 periods of Ga0.47In0.53As/AlAs0.56Sb0.44 active/injection regions grown lattice-matched on InP substrates...

  • Effect of the active medium temperature on the operation of fast-flow CO2 lasers. Nevdakh, V. V.; Arshinov, K. I.; Gaiko, O. L. // Optics & Spectroscopy;Sep2009, Vol. 107 Issue 3, p371 

    A new formula is obtained for estimating the output power of fast-flow CO2 lasers. It is shown that a higher specific output power of these CO2 lasers in comparison with sealed-off CO2 lasers is caused mainly by the higher saturation intensity of the former. It is concluded that the temperature...

  • CW and passive Q-switching of 1331-nm Nd:GGG laser with Co2+:LMA saturable absorber. Zuo, C.-H.; Zhang, B.-T.; He, J.-L.; Dong, X.-L.; Yang, J.-F.; Huang, H.-T.; Xu, J.-L.; Zhao, S.; Dong, C.-M.; Tao, X.-T. // Applied Physics B: Lasers & Optics;Apr2009, Vol. 95 Issue 1, p75 

    In this paper, the output performances at 1331 nm in continuous-wave (CW) operation and the passive Q-switching regime of a Nd:Gd3Ga5O12(Nd:GGG) laser crystal have been investigated under pumping with diode lasers. A maximum CW output power of 1.5 W was reached at an incident pump power of 7.5...

  • Diode laser coupled to a high-Q microcavity via a GRIN lens. Vassiliev, V.V.; Il’ina, S.M.; Velichansky, V.L. // Applied Physics B: Lasers & Optics;2003, Vol. 76 Issue 5, p521 

    A miniature high-coherent diode laser was developed. Optical feedback from a high-Q microsphere resonator was used to narrow the spectrum of the laser, and a nearly half-pitch gradient-index lens served as a coupling element. As estimated from the variation in frequency-tuning range...

  • Continuous and Pulsed THz generation with molecular gas lasers and photoconductive antennas gated by femtosecond pulses. Cruz, Flavio C.; Nogueira, Giovana T.; Costa, Leverson F. L.; Jarschel, Paulo F.; Frateschi, Newton C.; Viscovini, Ronaldo C.; Vieira, Bruno R. B.; Guevara, Victor M. B.; Pereira, Daniel // AIP Conference Proceedings;4/15/2008, Vol. 992 Issue 1, p383 

    We report THz generation based on two systems: 1) continuous-wave (cw) laser generation in molecular gas lasers, and 2) short pulse generation in photoconductive antennas, gated by femtosecond near-infrared Ti:sapphire lasers. With the first system, we have generated tens of monochromatic cw...

  • Single mode high-contrast subwavelength grating vertical cavity surface emitting lasers. Huang, Michael C. Y.; Ye Zhou; Chang-Hasnain, Connie J. // Applied Physics Letters;4/28/2008, Vol. 92 Issue 17, p171108 

    We present a single mode vertical-cavity surface-emitting laser (VCSEL) utilizing a single-layer, high-contrast subwavelength grating (HCG) based top mirror, which provides both the ultrahigh reflectivity and lateral transverse modes control. Experimentally, we demonstrate that merely 11 HCG...

  • Difference-frequency generation in a butt-join diode laser. Zvonkov, B.; Biryukov, A.; Nekorkin, S.; Aleshkin, V.; Gavrilenko, V.; Dubinov, A.; Maremyanin, K.; Morozov, S. // Semiconductors;Feb2009, Vol. 43 Issue 2, p208 

    The intracavity difference-frequency generation in the middle-infrared region in the GaAs/InGaAs/InGaP butt-join diode lasers with quantum wells is experimentally studied.

  • Diode-pumped lasers for ultra-high peak power. Siebold, M.; Hein, J.; Hornung, M.; Podleska, S.; Kaluza, M.C.; Bock, S.; Sauerbrey, R. // Applied Physics B: Lasers & Optics;Mar2008, Vol. 90 Issue 3/4, p431 

    The generation of the highest laser peak intensities at a high degree of system compactness can be achieved by combining modern diode-pump technologies with the chirped pulse amplification technique. In principle, the spectroscopic properties of the gain medium determine the scaling laws of both...

  • Optoelectronic difference-frequency synthesiser: terahertz-waves for high-resolution spectroscopy. L. Aballea; L. Constantin // European Physical Journal - Applied Physics;Feb2009, Vol. 45 Issue 2, p21201 

    We demonstrate a simple approach for a difference-frequency synthesiser within the terahertz domain. Two near-infrared CW diode lasers are frequency-locked to the resonances of a high finesse Fabry-Perot cavity using the Pound-Drever-Hall technique. Two acousto-optic modulators driven by RF...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics