Controlled Multibeam Supercontinuum Generation With a Spatial Light Modulator

Author

Borrego-Varillas, Rocio ; Perez-Vizcaino, Jorge ; Mendoza-Yero, Omel ; Minguez-Vega, Gladys ; de Aldana, Javier R. Vazquez ; Lancis, J.

Author_Institution

Dept. de Cienc. Experimentals, Univ. Jaume I, Castello, Spain

Volume

26

Issue

16

fYear

2014

fDate

Aug.15, 15 2014

Firstpage

1661

Lastpage

1664

Abstract

We report on deterministic femtosecond multifilamentation in fused silica by encoding a diffractive microlens array into a spatial light modulator. The efficiency and focal length of each microlens are modified through the addressing voltage. This allows for a precise control on the energy coupled to the filaments thus obtaining a homogenized supercontinuum pattern from an inhomogeneous irradiance input distribution. Slight changes in the focal length of the microlenses allow for independent tailoring of the supercontinuum spectra.

Keywords

high-speed optical techniques; laser beams; microlenses; optical arrays; optical control; silicon compounds; spatial light modulators; supercontinuum generation; SiO₂; controlled multibeam supercontinuum generation; deterministic femtosecond multifilamentation; diffractive microlens array encoding; focal length; fused silica; homogenized supercontinuum pattern; inhomogeneous irradiance input distribution; spatial light modulator; Arrays; Laser beams; Laser theory; Lenses; Microoptics; Silicon compounds; Ultrafast optics; Optical pulse shaping; optical arrays; supercontinuum generation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2330362

Filename

6832560