Light Activated Silicon Switch.
Abstract
Light Activated Silicon Switches (LASS) have been fabricated and tested in a radar test modulator with as many as 10 devices being triggered simultaneously in a single series or a series-parallel switching arrangement. The light trigger source was a Q-switched, neodymium doped yttrium alluminum garnet laser emitting a 20 nanosec, 0.1 joule pulse at 60 Hz. Devices were triggered on in 10 nanoseconds at a dI/dt of 4000 A/microsec to peak current of 1800 amperes from a blocking voltage state of 1000 volts. Optical coupling of the laser energy to the LASS devices utilized a system of dielectric beamsplitters which took advantage of the plane polarization and monochromatic nature of the laser beam to maximize the efficiency of coupling. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1972
- Accession Number
- AD0902555
Entities
People
- J. S. Roberts