Share Email Print
cover

Proceedings Paper

Fast optically triggered superconducting opening switches
Author(s): Deepnarayan Gupta; William R. Donaldson; Alan M. Kadin
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

High-Tc superconducting thin films are used to design a new type of opening switch. The superconducting film screens the magnetic flux linkage between the primary and the secondary coils of a transformer. Short laser pulses (150 ps) are used to trigger the transition of the superconductor to its normal state allowing the flux produced by a primary current to couple to the secondary. This results in an induced voltage pulse in the load across the secondary and corresponds to the open state of the switch. Experiments have confirmed the feasibility of this inductively coupled switch, and rise times of 50 ns have been observed for the secondary voltage pulse. The switch has the potential for high current (1 kA) and fast switching times (< 1 ns).

Paper Details

Date Published: 9 June 1993
PDF: 5 pages
Proc. SPIE 1873, Optically Activated Switching III, (9 June 1993); doi: 10.1117/12.146538
Show Author Affiliations
Deepnarayan Gupta, HYPRES (United States)
William R. Donaldson, Univ. of Rochester (United States)
Alan M. Kadin, Univ. of Rochester (United States)


Published in SPIE Proceedings Vol. 1873:
Optically Activated Switching III
R. Aaron Falk, Editor(s)

© SPIE. Terms of Use
Back to Top