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  • 1
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    Optimization of rod diameter in solid state lasers side pumped with multiple laser diode arrays (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Results of a study to determine the optimum laser rod diameter for maximum output energy in a solid state neodymium laser transversely pumped with multiple laser diode arrays are reported here. Experiments were performed with 1.0 mm, 1.5 mm and 2.0 mm rod radii of both neodymium doped Y3Al5O12 (Nd:YAG) and La2Be2O5 (Nd:BeL) pumped with laser diode arrays having a maximum combined energy of 10.5 mJ. Equations were derived which predict the optimum rod radius and corresponding output mirror reflectivity for a given laser material and total pump energy. Predictions of the equations agreed well with the experiments for each of the laser materials which possessed significantly different laser properties from one another.
    Keywords: LASERS AND MASERS
    Type: In: Solid state lasers III; Proceedings of the Meeting, Los Angeles, CA, Jan. 20-22, 1992 (A93-53052 23-36); p. 153-165.
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Study of multiple optical transitions in 87Rb using laser diodes (1983)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Recent work with laser diodes has indicated their potential usefulness in optically pumping atomic frequency standards. Various optical pumping schemes for (87)Rb incorporating such light sources at two D1 frequencies for experimental situations of either evacuated wall-coated cells or atomic beams are considered. Numerical integration of rate equations governing the level populations with arbitrary pumping light choices of intensity, D1 hyperfine transition(s), and polarization and subsequent calculation of scattered light provide a simplified 0-0 hyperfine signal analysis. By frequency modulating one laser diode, two optical transitions were excited in an evacuated wall-coated cell and a large delta m(F) = 1 hf signal was observed.
    Keywords: LASERS AND MASERS
    Type: NASA. Goddard Space Flight Center Proc. of the 14th Ann. Precise Time and Time Interval (PTTI) Appl. Planning Meeting; p 133-140
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Investigation of laser dynamics, modulation and control by means of intra-cavity time varying perturbation (1975)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The generation of tunable visible, infrared, and ultraviolet light is examined, along with the control of this light by means of novel mode-locking and modulation techniques. Transient mode-locking of the Nd:YAG laser and generation of short tunable pulses in the visible and the alkali metal inert gas excimer laser systems were investigated. Techniques for frequency conversion of high power and high energy laser radiation are discussed, along with high average power blue and UV laser light sources.
    Keywords: LASERS AND MASERS
    Type: NASA-CR-142018 , ML-2404 , REPT-22
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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