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  • Computer Controlled Variable Attenuator for Lasers (.pdf)
    . ( In Application Note 30 we. Figure 1. The computer controlled variable attenuator. The setup consists of a. described an attenuator that monitors the wavelength of. detector, a single-channel power meter, a Glan-laser polarizer, a 1/2 wave-plate. the laser and provides
  • Computer Controlled Variable Attenuator for Tunable Lasers
    from a tunable laser. It is based on the. From. To. combination of a 1/. Laser. 2 wave-plate and a polarizer. The algorithm. Glan-Laser. Experiment. used to control power operates in a closed loop with. Polarizer. Proportional Integral Derivative (PID) feedback,. compensating for slow changes
  • Variable Attenuator for Lasers
    polarization is rotated by 90°. For a polarizer, we recommend the Newport model. 10GL08AR.16 Glan-Laser Calcite Polarizer. It consists of two. calcite cubes with the optical axis oriented parallel to each. other (Fig. 5a). The electric field of the laser beam at normal. incidence to the polarizer
  • Coherent Anti-Stokes Raman Scattering Microspectrometer
    and invisible radiation emitted by. laser devices can be dangerous to the eyes and appropriate. precautions must be taken when lasers are in use. Only individuals who. are adequately trained in proper laser use and safety procedures. b). should operate the laser devices described herein. The Glan-laser