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  • Liquid Cooling a Laser for System Optimization
    crystal, can cause thermal lensing3. These thermal effects in the gain medium can affect the laser wavefronts and therefore the beam quality. With diode-pumped solid-state (DPSS) lasers, the crystal must be cooled and the temperature should be controlled to 0.5°C. (See Figures 1 and 2.). Keeping
  • Laser Beam Expander Theory
    spherical aberration, low wavefront distortion and achroma-. where x is the distance from the waist source and λ is the. ticity. Limitations are that it cannot accommodate spatial. laser wavelength. If λx/πS. filtering or larger expansion ratios. 2 > >1, then: o. S(x) = λx/πSo. Keplerian Beam
  • Bestform Laser Lens Theory
    Simple focusing and collimating of laser light can often be. accomplished by using a single lens element. However. the focused spot size, energy intensity and image quality. are all dependent on, not only the focal length, but also. the laser beam diameter, the lens radii and the center. thickness
  • Adaptive wavefront correction in two-photon microscopy using coherence-gated wavefront sensing
    (11). CGWS is instead based on backscattered light, whereby the majority of the light coming back from the sample is rejected by a coherence gate leaving only that light that has been scattered near the focus. The parameters needed for wavefront correction can thus be determined at low laser power
  • Laser Beam Expander Theory (.pdf)
    aberration, low wavefront distortion and achroma-. where x is the distance from the waist source and λ is the. ticity. Limitations are that it cannot accommodate spatial. laser wavelength. If λx/πS. filtering or larger expansion ratios. 2 > >1, then: o. S(x) = λx/πSo. Keplerian Beam Expanders. Using
  • Bestform Laser Lens Theory (.pdf)
    limited (< 1/4 wave) wavefront distortion. whitepapers_08.indd Bestform Laser Lens Theory. Page 1 of 2. What are Bestforms: Uniform Intensity Distribution. Simple focusing and collimating of laser light can often be. When a diffraction limited lens system is irradiated at. accomplished by using
  • Phase Conjugate Laser Optics - Preface
    of the gain media induces aberrated thermal lenses, which severely. affects the beam quality. It thus results in wavefront aberrations that reduce the. brightness of the source and that evolve when changing the operating conditions of. the source. Adaptive correction of phase aberrations in a laser
  • Laser Tuning with Diffraction Gratings
    and Littman. These methods are shown in Figures 2 and 3. Littman tuning offers higher angular spread and hence narrower spectral feedback; as the angle of incidence is increased toward 90°, however, the efficiency of the grating drops significantly. DS-02051 Laser Tuning TN.qxd TECHNICAL APPLICATION

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