Details

Autor(en) / Beteiligte

• Mosiño, J F
• Gutiérrez-García, J C
• Gutiérrez-García, T A
• Macías-Preza, J M

Titel

Two-frame algorithm to design quadrature filters in phase shifting interferometry

Ist Teil von

• Optics express, 2010-11, Vol.18 (24), p.24405-24411

Ort / Verlag

United States

Erscheinungsjahr

2010

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• The main purpose of this paper is to present a method to design tunable quadrature filters in phase shifting interferometry. From a general tunable two-frame algorithm introduced, a set of individual filters corresponding to each quadrature conditions of the filter is obtained. Then, through a convolution algorithm of this set of filters the desired symmetric quadrature filter is recovered. Finally, the method is applied to obtain several tunable filters, like four and five-frame algorithms.