July 15, 1980Applied Optics
Computer-controllable wedged-plate optical variable attenuator
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Implication
Experimental evaluation demonstrates precise high-power laser attenuation using wedged plates, highlighting a wide dynamic range and minimal beam deflection.
Key Points
- To design and evaluate a computer-controllable variable optical attenuator capable of handling high peak and average power lasers across broad spectral and dynamic ranges.
- Designed a variable optical attenuator mechanism utilizing Fresnel transmission across two pairs of wedged plates.
- Integrated computerized motorized control to adjust transmission and measured optical performance parameters.
- Demonstrated a 35-dB dynamic range alongside an insertion loss of only 1%.
- Achieved an attenuation precision superior to 1% with beam offset below 0.5 mm and beam deflection below 0.5 mrad.
Cite This Study
Bennett et al. (1980) studied this question.