Optimization of preamplifiers for detection of short pulses of light with photodiodes.
The design of the preamplifier used with photodiodes to detect short pulses of light is presented. Expressions are derived giving the output signal-to-noise ratio in terms of the noise characterization of the amplifier, the characteristics of the detector, and its operating conditions. The frequency response of a vacuum tube amplifier is specified to give the maximum output signal-to-noise ratio. A numerical example is given.
Edwards
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Aeronutronic Division, Philco Corporation,Newport Beach, California, USA.