Anamorphic Microlens Coupling Between Tapered Amplifier and Planar PPLN Waveguide

Author

Matsuzawa, Hirofumi ; Sakai, Kiyohide ; Itakura, Shigetaka ; Akiyama, Tomohiro ; Hirano, Yoshihito

Author_Institution

Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan

Volume

24

Issue

4

fYear

2012

Firstpage

306

Lastpage

308

Abstract

We designed an aspheric anamorphic microlens for coupling between a tapered amplifier with a length of 3 mm and a planar-waveguide second-harmonic-generation device consisting of a periodically poled MgO-doped lithium niobate crystal core with a thickness of 3 μm. A coupling efficiency of 35% and corresponding green light generation with a power of 65 mW and conversion efficiency of 7.4% was experimentally demonstrated.

Keywords

aspherical optics; lithium compounds; magnesium compounds; microlenses; optical harmonic generation; optical planar waveguides; semiconductor optical amplifiers; LiNbO:MgO; aspheric anamorphic microlens; conversion efficiency; coupling efficiency; efficiency 35 percent; efficiency 7.4 percent; green light generation; periodically poled MgO-doped lithium niobate crystal; planar PPLN waveguide; planar-waveguide second-harmonic-generation device; power 65 mW; size 3 mum; tapered amplifier; Couplings; Lenses; Microoptics; Optical fiber amplifiers; Planar waveguides; Waveguide lasers; Lenses; optical coupling; optical harmonic generation; semiconductor lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2177818

Filename

6095317