Mode-medium Instability and Its Correction with a Gaussian Reflectivity MirrorNational Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990 - Carbon dioxide lasers - 21 pages |
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Common terms and phrases
Alabama aliasing artificial power loss atm and Neg cavity complex gain profile complex gain sheets dielectric constant diffraction ripples edge eliminate the diffraction energy leakage equation evolution of intensity far-field Fast Fourier Transform function Gaussian reflectivity mirror Gaussian-edge resonator Hanning filter hard-edge output mirror Hard-edge resonator beam hard-edge unstable resonator Huntsville improving the beam intensity and phase intensity profile larger Fresnel numbers lasing medium Marshall Space Flight medium effects MMI effects MMI on Neg mode volume NASA Neg is increased number of data number of modulations peak density variation Peak value phase profile phenomenon plot shows plots of beam pressure quality and peak quantitative raised cosine resonator beam quality round-trip losses saturation intensity small Fresnel number soft-edge mirror soft-edge output mirror Space Flight Center Taylor series transverse dimension trial and error truncated units of radians University of Alabama variation in Figures wave