Open AccessDouble-field-of-view, quasi-common-path interferometer using Fourier domain multiplexing
Author(s) -
Behnam Tayebi,
Farnaz Sharif,
Mohammad Reza Jafarfard,
Dug Young Kim
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.026825
Subject(s) - optics , interferometry , fourier transform , multiplexing , spatial frequency , beam (structure) , sample (material) , physics , reference beam , fourier domain , field of view , frequency domain , computer science , telecommunications , optical coherence tomography , quantum mechanics , computer vision , thermodynamics
We present a quasi-common-path interferometer with a double field of view (FOV). The laser beam of an imaging system is separated into three parts using three mirrors; the first and second beams are used to image two different areas of a sample, while the third beam functions as a reference beam. The reference beam is prepared by making clear area in a sample and projecting it on an image sensor. A double FOV is obtained by Fourier domain multiplexing, whereby two interferometric images corresponding to two different areas of a sample are modulated with two different spatial carrier frequencies. The feasibility of this technique is experimentally demonstrated by imaging two different areas of a test target with a single image sensor.