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Final technical rept.,
AVCO EVERETT RESEARCH LAB INC EVERETT MASS
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An experimental investigation of a novel unstable resonator configuration is reported. The purpose of the novel configuration is to change the distribution of the uniform-flux area of a standard unstable resonator an annular beam with a hole in the center into a configuration such that a maximum amount of the uniform-flux area is contiguous i.e., provide a much larger region of constant flux. This is accomplished by the present off-axis unstable resonator. The present experimental results indicate no substantial loss of device output power or loss of far-field beam quality by the resonator configuration tested. Additional experimental results are presented indicating the sensitivity of resonator performance due to misalignment of the off-axis resonator.
APPROVED FOR PUBLIC RELEASE