Enhanced peak power and short pulse operation of planar waveguide CO[sub 2] lasers

Villarreal, F.; Murray, P. R.; Baker, H. J.; Hall, D. R.
April 2001
Applied Physics Letters;4/16/2001, Vol. 78 Issue 16, p2276
Academic Journal
We report a large peak power enhancement and reduction in pulse width for planar waveguide carbon dioxide lasers. Gain modulation through rf discharge power switching produces trains of laser pulses with peak power levels at up to 38 times the cw power level, with a pulse duration as low as 10 μs. Operation at repetition rates in the kHz region preserves the average power (100 W) of the normal cw/long pulse mode of operation. The laser is shown to operate close to the predicted boundaries dictated by thermal loading of the discharge. © 2001 American Institute of Physics.


Related Articles

  • Pulse stretching due to partial temporal overlap of two modes in a TEA CO[sub 2] laser. Nilaya, J. Padma; Biswas, Dhruba J. // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p579 

    Pulse duration as long as 14 μs has been obtained from a single longitudinal mode TEA CO[sub 2] laser. Such stretching occurred under conditions for which oscillation on a higher order transverse mode followed that on the TEM[sub 00] mode with partial temporal overlap between the two. Control...

  • Update on Seeded SM-LWFA and Pseudo-Resonant LWFA Experiments — (STELLA-LW). Kimura, W. D.; Andreev, N. E.; Babzien, M.; Cline, D. B.; Ding, X.; Hooker, S. M.; Kallos, E.; Katsouleas, T. C.; Kusche, K. P.; Kuznetsov, S. V.; Muggli, P.; Pavlishin, I. V.; Pogorelsky, I. V.; Pogosova, A. A.; Steinhauer, L. C.; Stolyarov, D.; Ting, A.; Yakimenko, V.; Zigler, A.; Zhou, F. // AIP Conference Proceedings;2006, Vol. 877 Issue 1, p534 

    The Staged Electron Laser Acceleration — Laser Wakefield (STELLA-LW) experiment is investigating two new methods for laser wakefield acceleration (LWFA) using the TW CO2 laser available at the Brookhaven National Laboratory Accelerator Test Facility. The first is seeded self-modulated...

  • Experimental Evidence for Particle Acceleration by Stimulated Emission of Radiation. Banna, Samer; Berezovsky, Valery; Schächter, Levi // AIP Conference Proceedings;2006, Vol. 877 Issue 1, p51 

    The interaction of electromagnetic radiation with free electrons in the presence of an active medium has several appealing outcomes. Among them the PASER scheme, standing for Particle Acceleration by Stimulated Emission of Radiation. In the framework of this scheme, energy stored in an active...

  • 15-mJ pulses from a 4.3-μm CO2 laser. Brimacombe, R. K.; Reid, J. // Applied Physics Letters;1984, Vol. 45 Issue 8, p813 

    Output energies of 15 mJ/pulse and peak powers of 100 kW/pulse are obtained from a 4.3-μm CO2 laser which is optically pumped by a 10-μm sequence-band CO2 laser. The dominant operating characteristics of the laser and their effect on output energy, line tunability, and scalability are...

  • Efficient extreme ultraviolet plasma source generated by a CO2 laser and a liquid xenon microjet target. Ueno, Yoshifumi; Ariga, Tatsuya; Soumagne, George; Higashiguchi, Takeshi; Kubodera, Shoichi; Pogorelsky, Igor; Pavlishin, Igor; Stolyarov, Daniil; Babzien, Marcus; Kusche, Karl; Yakimenko, Vitaly // Applied Physics Letters;5/7/2007, Vol. 90 Issue 19, p191503 

    We demonstrated efficacy of a CO2-laser-produced xenon plasma in the extreme ultraviolet (EUV) spectral region at 13.5 nm at variable laser pulse widths between 200 ps and 25 ns. The plasma target was a 30 μm liquid xenon microjet. To ensure the optimum coupling of CO2 laser energy with the...

  • Production of Multi-Terawatt Time-Structured CO2 Laser Pulses for Ion Acceleration. Haberberger, Dan; Tochitsky, Sergei; Gong, Chao; Joshi, Chan // AIP Conference Proceedings;11/5/2010, Vol. 1299 Issue 1, p737 

    The UCLA Neptune Laboratory CO2 laser system has been recently upgraded to produce 3ps multi-terawatt 10μm laser pulses. The laser energy is distributed over several 3 ps pulses separated by 18 ps. These temporally structured pulses are applied for laser driven ion acceleration in an H2 gas...

  • Pulse shaping of transversely excited atmospheric CO2 laser using a simple plasma shutter. Hurst, Noah; Harilal, S. S. // Review of Scientific Instruments;Mar2009, Vol. 80 Issue 3, p035101 

    The pulse from a transversely excited atmospheric CO2 laser consists of a sharp spike followed by a long, drawn out tail region spanning about 2–5 μs caused by the nitrogen gas in the laser cavity. The nitrogen tail is undesirable in many applications because it decreases the average...

  • Prospects and Directions of CO² Laser-driven Accelerators. Tochitsky, Sergei; Fiuza, Frederico; Joshi, Chan // AIP Conference Proceedings;2016, Vol. 1777 Issue 1, p1 

    This paper reviews the current status of picosecond CO2 lasers. Prospective technologies for the generation of 10 µm laser pulses at a peak power level of 30 to 200 TW in a single-shot regime and 1 to 10 TW at a high repetition frequency are discussed. Such laser-drivers are useful for shock...

  • Axial Impulse Generation of Lightcraft Engines with ∼ 1 μs Pulsed TEA CO2 Laser. Kenoyer, D. A.; Salvador, I. I.; Myrabo, L. N. // AIP Conference Proceedings;11/10/2011, Vol. 1402 Issue 1, p82 

    A twin Lumonics K922M pulsed TEA CO2 laser system (∼50 ns FWHM spike, with selectable 1.5 or 2.5 μs tail-depending upon laser gas mixture) was employed to experimentally measure the axial impulse behavior of a family of lightcraft engine geometries, using a lightweight ballistic...


Read the Article


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

Try another library?
Sign out of this library

Other Topics