Title :
Direct measurement of tiled mirror phase difference by multi-wave shearing interferometry
Author :
Mousset, Soazic ; Rouyer, Claude ; Marre, Gabrielle ; Blanchot, Nathalie ; Montant, Sébastien ; Wattellier, Benoit
Author_Institution :
Centre d´´Etudes Scientifiques et Tech. d´´Aquitaine, Commissariat a l´´Energie Atomique, Le Barp
Abstract :
We present a new method based on multi-wave shearing interferometry to measure the relative phase between two independent beams separated by a physical gap. Experimental results show accuracy and sensitivity better than 50 nm.
Keywords :
light interferometers; mirrors; optical design techniques; optical variables measurement; direct measurement; multiwave shearing interferometry; relative phase measurement; tiled mirror phase difference; Atomic measurements; Compressors; Diffraction gratings; Extraterrestrial measurements; Mirrors; Optical interferometry; Optical pulse compression; Optical sensors; Phase measurement; Shearing; (050.5080) Diffraction and gratings: phase shift; (320.5520) Pulse compression;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4628834
