Resonant waveguide quasi-phase-matched SHG devices with electrooptic phase-modulator for tuning

Author

Fujimura, Masatoshi ; Sudoh, Masaaki ; Kintaka, Kenji ; Suhara, Toshiaki ; Nishihara, Hiroshi

Author_Institution

Fac. of Eng., Osaka Univ., Japan

Volume

2

Issue

2

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

396

Lastpage

400

Abstract

We propose and demonstrate a resonant LiNbO₃ waveguide device for quasi-phase-matched second-harmonic generation (SHG) that employs an electrooptic phase-modulator for frequency tuning. The waveguide cavity for the pump wave consists of an annealed/proton-exchanged channel waveguide and two dielectric mirrors attached to the waveguide facets. SHG experiments were performed using a laser diode at 865-nm wavelength, and a normalized SHG efficiency of 400%/W was obtained. This value is eight times higher than that of a traveling-wave device. The phase modulator allows tuning of the cavity resonance frequency to the pump frequency with a tuning voltage of less than 8.3 V

Keywords

electro-optical modulation; integrated optics; lithium compounds; mirrors; optical harmonic generation; optical materials; optical pumping; optical resonators; optical waveguides; phase modulation; tuning; 8.3 V; LiNbO₃; annealed proton-exchanged channel waveguide; cavity resonance frequency; dielectric mirrors; electrooptic phase-modulator; frequency tuning; laser diode; nm wavelength; normalized SHG efficiency; phase modulator; pump frequency; pump wave; resonant waveguide quasi-phase-matched SHG devices; traveling-wave device; tuning; tuning voltage; waveguide cavity; waveguide facets; Annealing; Dielectrics; Diode lasers; Electrooptic devices; Electrooptical waveguides; Frequency; Laser tuning; Mirrors; Phase modulation; Resonance;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/2944.577401

Filename

577401