Title :

Equal-efficiency diffraction of unpolarized wideband light with acousto-optic filters

Author(s) :

Dupont, Samuel [Auteur]
Optoélectronique - IEMN [OPTO - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Champagne, Justine [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Optoélectronique - IEMN [OPTO - IEMN]
Kastelik, Jean-Claude [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Optoélectronique - IEMN [OPTO - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 [IEMN-DOAE]
Université Polytechnique Hauts-de-France [UPHF]
INSA Institut National des Sciences Appliquées Hauts-de-France [INSA Hauts-De-France]

Journal title :

JOURNAL OF MODERN OPTICS

Pages :

10 pages

Publisher :

Taylor & Francis

Publication date :

2022

ISSN :

0950-0340

English keyword(s) :

Acousto-optic devices
wavelength filtering devices
birefringence
polarization-selective devices

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

We present the diffraction of unpolarized light over a broad wavelength range using paratellurite Acousto-Optic Tuneable Filters. The diffraction of unpolarized light usually relies on a specific operating point that is ...
Show more >We present the diffraction of unpolarized light over a broad wavelength range using paratellurite Acousto-Optic Tuneable Filters. The diffraction of unpolarized light usually relies on a specific operating point that is sensitive to the wavelength and angle of incidence, resulting in an operating ability over a narrow bandwidth. We present a detuning strategy to eliminate the angular dependence and obtain equal diffraction efficiency for both the linear polarization states over a broad bandwidth. We explain how to find the optimum operating frequency and present its dependency as a function of the wavelength. With the quasi-phase matching condition presented, the diffraction of unpolarized light over the 400 nm to700 nm band is possible with an efficiency of over 80%.Show less >

Language :

Anglais

Popular science :

Non

ANR Project :

Imagerie Spectro-Polarimétrique pour l'Identification Temps Réel

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL