Abstract

The results of the development of a much simpler optical configuration for the long-trace profiler (LTP) are presented. The current technique employs a cyclic optical configuration to achieve zero optical path difference for the closely spaced, laterally separated laser beams. The accuracy of measurement is found to remain as good as that in the case of the widely used LTP, although the geometrical alignment problem is simplified significantly.

© 2002 Optical Society of America

Improvements in the accuracy and the repeatability of long trace profiler measurements

Peter Z. Takacs, Eugene L. Church, Cynthia J. Bresloff, and Lahsen Assoufid
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Measurement of the surface profile of a curved optical surface with rotation phase-shifting lateral shear cyclic path optical configuration

Sanjib Chatterjee and Y. Pavan Kumar
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Precise measuring method for detecting the in situ distortion profile of a high-heat-load mirror for synchrotron radiation by use of a pentaprism long trace profiler

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Self-referenced technique for the determination of meridional figure errors of a toroidal mirror with a Sagnac interferometer

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External measurement of dihedral right angles with cyclic optical configuration

Sanjib Chatterjee and Y. Pavan Kumar
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