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Conferences > CLEO > 1994 > CThI > CThI46
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper CThI46

Large dynamic range, linearly variable attenuation of high-power CO2 laser pulses

P. Sakthivel and P. Mukherjee

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Abstract

Linear attenuation of high power CO2 laser pulses using a binary gas mixture has allowed saturation-free operation upto an intensity of 1 MW/cm2.1 However, saturation at higher intensities and the restricted range of linear attenuation (0—30 dB in a 10 cm absorption length) limited the versatility of this attenuator. We report, in this paper, a novel attenuation technique that allows significant (five orders of magnitude) enhancement in the dynamic range, as well as the elimination of intensity-dependent saturation.

© 1994 Optical Society of America

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