Laser diodes for optical readout of cryo-electronics

Lewis A. Bunz; Sergey V. Rylov; Elie K. Track

doi:10.1117/12.178492

23 June 1994 Laser diodes for optical readout of cryo-electronics

Lewis A. Bunz, Sergey V. Rylov, Elie K. Track

Proceedings Volume 2226, Infrared Readout Electronics II; (1994) https://doi.org/10.1117/12.178492
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

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.

Citation Download Citation

Lewis A. Bunz, Sergey V. Rylov, and Elie K. Track "Laser diodes for optical readout of cryo-electronics", Proc. SPIE 2226, Infrared Readout Electronics II, (23 June 1994); https://doi.org/10.1117/12.178492

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