Microwave signal generation based on the interaction of mode-locked laser pulses with a nonlinear optical crystal

Author

Braggio, Caterina ; Borghesani, Francesco A. ; Carugno, Giovanni

Author_Institution

Dipt. di Fis. e Astron., Univ. di Padova, Padua, Italy

fYear

2014

fDate

20-23 Oct. 2014

Firstpage

170

Lastpage

172

Abstract

We report about a technique to generate microwave radiation by the irradiation of a nonlinear optical crystal with uniformly spaced, ultrashort optical pulses delivered by a mode-locked laser. By systematically studying the laser polarization and intensity dependence of the microwave signal it is possible to show that it is a nonlinear phenomenon and that it originates from optical rectification. We report in this work wide bandwidth detection of the generated microwave signals, achieved inside a coaxial copper structure.

Keywords

copper; laser beams; laser mode locking; microwave generation; microwave photonics; nonlinear optics; optical harmonic generation; optical materials; Cu; coaxial copper structure; intensity dependence; laser polarization; microwave radiation generation; microwave signal generation; mode-locked laser pulse interaction; nonlinear optical crystal irradiation; nonlinear phenomenon; optical rectification; ultrashort optical pulses; wide bandwidth detection; Crystals; Masers; Measurement by laser beam; Microwave oscillators; Microwave photonics; Optical pulses; microwaves; nonlinear optical crystals; nonlinear optical devices; optical rectification; photodetectors; second harmonic generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP), 2014 International Topical Meeting on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/MWP.2014.6994522

Filename

6994522