Abstract

To achieve optimum performance with segmented mirror systems, the individual mirror segments must be aligned with respect to each other. This alignment is often referred to as phasing, and two mirror segments which have met this condition are termed in-phase. Mirror phasing requires that accurate tip, tilt, and piston measurements be made. The Polarization Phase Sensor (PPS) demonstrates a novel approach to mirror segment alignment.

© 1991 Optical Society of America