Tunable Filter Refurbishment.
LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CA PALO ALTO RESEARCH LAB
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This project consisted of replacing quartz birefringment elements in a tunable filter at Lockheed Research Labs. The elements were borrowed from this filter in order to construct the 2 birefringent filter for the 1981 SLCAIR experiment. Four elements were taken from the Lockheed filter to act as a blocking section for the narrowband elements built specifically for the 1981 filter.