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Proceedings Paper

A Fast Radiation-To-Coherent Light Converter
Author(s): C. L. Wang; J. E. Flatley; P. H Stewart; N. Bar-Chaim; K. Y. Lau; I. Ury; R. M. Baltrusaitis; T. J. Davies; B. A. Davis; S. G. Iversen
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Paper Abstract

We have developed a radiation-to-coherent light converter (RCLC) with a monolithically integrated semi-conductor chip that consists of a chromium-doped GaAs photoconductor detector and a GaA1As laser diode. When irradiated, the electric pulse generated by the photoconductor detector modulates the laser diode, which has been biased above the lasing threshold, thus converting a radiation pulse to an electric pulse and then to a light pulse. The laser pulse is then transmitted to a fast recorder through a high-bandwidth optical fiber. In the absence of a single-step x-ray pumped laser, our converter appears to be the first integrated device that can efficiently convert x-ray flux into coherent light. This device has been tested successfully with the 50-ps electron beams of a 17-MeV linear accelerator and with 50-ns x-ray pulses from a Z-pinch plasma source.

Paper Details

Date Published: 7 February 1989
PDF: 7 pages
Proc. SPIE 0987, High Bandwidth Analog Applications of Photonics II, (7 February 1989); doi: 10.1117/12.959687
Show Author Affiliations
C. L. Wang, University of California (United States)
J. E. Flatley, University of California (United States)
P. H Stewart, University of California (United States)
N. Bar-Chaim, Ortel Corporation (United States)
K. Y. Lau, Ortel Corporation (United States)
I. Ury, Ortel Corporation (United States)
R. M. Baltrusaitis, EG&G, Inc. (United States)
T. J. Davies, EG&G, Inc. (United States)
B. A. Davis, EG&G, Inc. (United States)
S. G. Iversen, EG&G, Inc. (United States)

Published in SPIE Proceedings Vol. 0987:
High Bandwidth Analog Applications of Photonics II
Barry T. Neyer, Editor(s)

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