Open AccessFull-field detection of polarization state based on multiplexing digital holography
Author(s) -
Jun Ma,
Yuan Chen,
Shuai Feng,
Nie Shou-Ping
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.224204
Subject(s) - polarization (electrochemistry) , holography , fourier transform , angular spectrum method , optics , multiplexing , orthogonal polarization spectral imaging , physics , stokes parameters , amplitude , digital holography , frequency domain , diffraction , computer science , scattering , telecommunications , chemistry , laser , quantum mechanics , computer vision
Based on digital holography recording system, it is proposed to use both polarization and angular multiplexing techniques to detect a polarization state. Reference beam is divided into two beams with orthogonal polarization directions and equal initial phases. And the beams interfere with the two orthogonal components of object wave respectively, which generates two holograms recorded in one frame. The use of angular multiplexing separates the two orthogonal components of object wave in the Fourier domain by respectively introducing carriers towards different directions. By numerical filtering, inverse Fourier transform and then diffraction calculation, complex amplitude of object wave can be obtained at different distances to the holograms. With the obtained complex amplitude, it is possible to work out both the Stokes parameters and Jones vector, which describe the polarization state of the object wave. The measuring of elliptical polarization state and the characterizing of polarization states at different locations on axis prove the validity of this real-time full-field detection method.