Open AccessBox-bender: a 3D dispersion and pathlength-matched polarization interferometer
Author(s) -
Stephanie Swartz,
Michael Brand,
Kelvin Wagner
Publication year - 2018
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.43.005218
Subject(s) - optics , interferometry , physics , polarization (electrochemistry) , broadband , dispersion (optics) , chemistry
We present the 3D box-bender interferometer, which folds a Mach-Zehnder into a symmetric box using a polarization-rotating periscope with a 90° geometric phase shift to rotate the polarization in one arm for interfering two broadband orthogonally-polarized beams with equal optical pathlength and dispersion. We demonstrate its utility by interfering the orthogonally-polarized diffracted and undiffracted beams from an acousto-optic tunable filter.