Highly efficient SHG in buried waveguides formed using annealed and reverse proton exchange in PPLN

Author

Parameswaran, Krishnan R. ; Route, Roger K. ; Kurz, Jonathan R. ; Roussev, Rostislav V. ; Fejer, Martin M. ; Fujimura, Masatoshi

Author_Institution

Edward L. Ginzton Lab., Stanford Univ., CA, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

752

Abstract

Optical frequency mixers use near-degenerate three-wave mixing in guided-wave quasi-phasematched interactions, where the waveguides were made by annealed proton exchange (APE) in periodically poled lithium niobate (PPLN). We present measurements of linear and nonlinear optical properties of buried waveguides formed by APE followed by reverse proton exchange in PPLN. The symmetry of the buried waveguides results in a four-fold improvement in conversion efficiency over that of APE guides. A spatial mode image is presented, along with a second harmonic generation tuning curve, where a peak efficiency of 150%/W-cm² is observed

Keywords

annealing; dielectric polarisation; ion exchange; lithium compounds; optical fabrication; optical harmonic generation; optical planar waveguides; optical tuning; optical wavelength conversion; LiNbO₃; annealed proton exchange; buried waveguides; conversion efficiency; electric field poling; fundamental transverse modes; optical frequency mixers; periodically poled lithium niobate; quasi-phasematched interactions; reverse proton exchange; second harmonic generation tuning curve; spatial mode image; three-wave mixing interactions; Annealing; Frequency; Image converters; Lithium niobate; Nonlinear optics; Optical harmonic generation; Optical mixing; Optical tuning; Optical waveguides; Protons;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE

Conference_Location

San Diego, CA

ISSN

1092-8081

Print_ISBN

0-7803-7105-4

Type

conf

DOI

10.1109/LEOS.2001.969033

Filename

969033