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15 December 1978 Nuclear Radiation Vulnerability Of Ring Laser Gyroscope
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In spite of the specific differences between laser gyro designs, all ring laser gyroscopes have certain similar elements such as the lasing medium itself, mirrors, windows, and optical detectors. Laser gyros may also include path length control mechanisms, dither motors, magnetic mirrors, and/or Faraday cells. Ring laser gyroscopes are very attractive for a wide range of commercial and military systems. In many military applications they must survive and continue functioning after nuclear radiation exposures. This paper identifies nuclear vulnerabilities of several components common to most ring laser gyroscopes. Particular attention is directed to radiation coloration and bleaching of optically transparent low thermal expansion materials and radiation responses of optical photodetectors. Corroborating experimental results and selected nuclear hardening design guidelines are offered.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
B. C. Passenheim and C. E. Mallon "Nuclear Radiation Vulnerability Of Ring Laser Gyroscope", Proc. SPIE 0157, Laser Inertial Rotation Sensors, (15 December 1978);

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