Title :
High-performance electro-optic polarisation conversion type modulator for short-wavelength light using periodically poled MgO:LiNbO3
Author :
Inoue, Takeru ; Suhara, Toshiaki
Author_Institution :
Dept. of Electr., Electron. & Inf. Eng., Osaka Univ., Suita, Japan
Abstract :
An electro-optic (EO) polarisation conversion type modulator for short-wavelength light using periodically poled MgO:LiNbO3 is fabricated and the characteristics are evaluated using a tunable GaN laser. High-quality domain-inverted gratings with 3.6 μm were obtained over a 1.0 × 1.0 mm2 area. The maximum conversion efficiency, as high as 91%, was obtained. The wavelength bandwidth was 0.7 nm, which was in good agreement with the calculated value, and high wavelength selectivity was obtained.
Keywords :
diffraction gratings; electro-optical modulation; gallium compounds; laser tuning; lithium compounds; magnesium compounds; optical fabrication; GaN; MgO:LiNbO3; PPMgLN; electrooptic polarisation conversion type modulator; high-quality domain-inverted gratings; maximum conversion efficiency; periodically poled MgO:LiNbO3; short-wavelength light; size 3.6 mum; tunable GaN laser; wavelength bandwidth; wavelength selectivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.2848
