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Compact Laser Drivers for Photoconductive Semicond

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: HDTRA118C0056
Agency Tracking Number: T2-0310
Amount: $999,415.82
Phase: Phase II
Program: STTR
Solicitation Topic Code: DTRA16A-004
Solicitation Number: 2016.0
Timeline
Solicitation Year: 2016
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-07-16
Award End Date (Contract End Date): 2020-07-15
Small Business Information
6300 Gateway Dr., Cypress, CA, 90630
DUNS: 614108918
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jonathan Parson
 (719) 302-3117
 jparson@sara.com
Business Contact
 Ruth Craig
Phone: (714) 224-4410
Email: rcraig@sara.com
Research Institution
 Texas Tech University
 Amy Cook, J.D.
 P.O. Box 3102
Lubbock, TX, 79409
 (806) 742-3884
 Nonprofit college or university
Abstract
For effective protection against radiated threats, it is important to understand not only the physics of the threats, but also to quantify the effects they have on mission-critical electrical systems. Radiated vulnerability and susceptibility testing requires delivery of high peak power and peak electric fields to distant targets. The most practical solution to simulate such environments on large systems is to develop a modular, optically isolated MV-antenna array. This proposal presents an inexpensive 100 kV Pulse Charger and a low-jitter Laser Trigger System capable of driving gallium arsenide (GaAs) photoconductive semiconductor switches (PCSS) to drive largescale antenna arrays with <300 ps of timing jitter. To prevent damaging the PCSS, the primary charge storage capacitor must be pulse charged in less than 10 us, therefore limiting the voltage seen by the switch. The initial simulations of the proposed pulse charger architecture is capable of delivering 5 J of energy within 7 us with a regulated output voltage of up to 100 kV. The optical parameters required to trigger the PCSSs are 10-300 uJ of ~840-880 nm light.

* Information listed above is at the time of submission. *

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