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Proceedings Paper

Laser diodes for optical readout of cryo-electronics
Author(s): Lewis A. Bunz; Sergey V. Rylov; Elie K. Track
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Paper Abstract

We report successful coupling of electrical signals from low temperature (4.2 K) superconducting circuitry to room temperature electronics using laser diodes coupled to optical fibers. The techniques used rely on laser diodes operating at low temperatures, and on high gain amplifiers placed outside the low temperature environment. A new superconducting driver circuit is used to step-up the low output of these circuits to a seven millivolt level, sufficient to modulate the laser diodes. By properly choosing the laser source, the power dissipated within the cryogenic environment can be maintained below 400 (mu) W, with further improvements easily reached.

Paper Details

Date Published: 23 June 1994
PDF: 10 pages
Proc. SPIE 2226, Infrared Readout Electronics II, (23 June 1994); doi: 10.1117/12.178492
Show Author Affiliations
Lewis A. Bunz, Hypres, Inc. (United States)
Sergey V. Rylov, Hypres, Inc. (United States)
Elie K. Track, Hypres, Inc. (United States)


Published in SPIE Proceedings Vol. 2226:
Infrared Readout Electronics II
Eric R. Fossum, Editor(s)

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