Millimeter-wave signal generation device using optical difference frequency generation in LiTaO3 crystal suspended to rectangular waveguide

Author

Takashima, Youichi ; Maejima, Yuto ; Murata, Hidekazu ; Okamura, Yasuyuki ; Kanno, Atsushi ; Kawanishi, Tetsuyas

Author_Institution

Grad. Sch. of Eng. Sci., Osaka Univ., Toyonaka, Japan

fYear

2014

fDate

20-23 Oct. 2014

Firstpage

153

Lastpage

156

Abstract

A new millimeter-wave (MMW) signal generation device using a rectangular waveguide and second order nonlinear optical effect is proposed. Using a T-shaped rectangular waveguide with a suspended LiTaO₃ crystal, adiabatic MMW signal injection into the waveguide is obtainable through optical difference frequency generation in the crystal. This device is easy for coupling to standard rectangular waveguide circuits compared with the proto-type devices where a nonlinear crystal is completely embedded into a rectangular waveguide. Analysis, design and preliminary experimental results are reported.

Keywords

lithium compounds; millimetre waves; optical couplers; optical design techniques; optical frequency conversion; optical waveguides; rectangular waveguides; tantalum compounds; LiTaO₃; T-shaped rectangular waveguide; adiabatic MMW signal injection; millimeter-wave signal generation device; optical coupling; optical design; optical difference frequency generation; second order nonlinear optical effect; suspended lithium tantalate crystal; Nonlinear optics; Optical device fabrication; Optical fibers; Optical polarization; Rectangular waveguides; Difference frequency generation; Nonlinear optical effect; Quasi-phase matching; Rectangular waveguide; Suspended waveguide;

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.2014.6994516

Filename

6994516