Heterodyne Interferometer For Alignment Of The Two Elements Of A Reflaxicon

Robert A. Field

doi:10.1117/12.959452

31 December 1980 Heterodyne Interferometer For Alignment Of The Two Elements Of A Reflaxicon

Robert A. Field

Proceedings Volume 0251, Optical Alignment I; (1980) https://doi.org/10.1117/12.959452
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

The design of a heterodyne interferometer to align the two elements of a reflaxicon is described. The discussion covers the optical, electro-optical, and mechanical design. In this application the interferometer is required to measure the phase variations across the wavefront of a probe beam that returns from the test optics. The measurement must have high resolution and be completed within about one second. The test wavefront must be corrected to remove system figure errors, alignment optics errors, and dynamic disturbance effects. The corrected wavefront is then processed to separate effects due to each degree of freedom of misalignment of the reflaxicon. Then each degree of freedom can be corrected by commands to mirror mount actuators from an alignment computer.

Citation Download Citation

Robert A. Field "Heterodyne Interferometer For Alignment Of The Two Elements Of A Reflaxicon", Proc. SPIE 0251, Optical Alignment I, (31 December 1980); https://doi.org/10.1117/12.959452

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