A Fast Radiation-To-Coherent Light Converter

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

doi:10.1117/12.959687

7 February 1989 A Fast Radiation-To-Coherent Light Converter

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

Author Affiliations +

Proceedings Volume 0987, High Bandwidth Analog Applications of Photonics II; (1989) https://doi.org/10.1117/12.959687
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

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.

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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, and S. G. Iversen "A Fast Radiation-To-Coherent Light Converter", Proc. SPIE 0987, High Bandwidth Analog Applications of Photonics II, (7 February 1989); https://doi.org/10.1117/12.959687

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