An optically strobed sample and hold circuit
Abstract
Radiation damaged photoconductors have been shown to be useful devices for sampling repetitive electrical signals with time resolution to less than a picosecond. In previous work, the signal being sampled has generally had to repeat in order to be averaged by a lock-in amplifier for detection. In contrast, the circuit described in this paper is designed to make one sample on a non-repetitive signal with a 10 picoseconds aperture and then hold this sample for a microsecond. The hold time only needs to be long enough for the signal to be A to D converted. This circuit was designed as a prototype with the intent of integrating a number of these circuits in the future for making multiple samples, offset in time, on a single electrical transient signal and thereby capture the transient. This paper will be concerned with the design, fabrication and testing of one of these optically strobed sample and hold circuits.
- Publication:
-
Presented at the IEEE/OSA Topical Meeting on Picosecond Electronics and Optoelectronics
- Pub Date:
- January 1987
- Bibcode:
- 1987peo..meet.....M
- Keywords:
-
- Pulse Repetition Rate;
- Radiation Effects;
- Circuits;
- Photoconductors;
- Electro-Optics;
- Fabrication;
- Surges;
- Electronics and Electrical Engineering