Telecom-Band Directional Coupler Written With Femtosecond Fiber Laser

Author

Eaton, S.M. ; Chen, W. ; Zhang, L. ; Zhang, H. ; Iyer, R. ; Aitchison, J.S. ; Herman, P.R.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont.

Volume

18

Issue

20

fYear

2006

Firstpage

2174

Lastpage

2176

Abstract

A femtosecond fiber laser with 1-MHz repetition rate was optimized to write low-loss waveguides and directional couplers inside bulk borosilicate glass. For the first time, this three-dimensional writing method has produced low insertion loss and near-unity maximum coupling ratio. Results are presented at telecommunication wavelengths of 1310 and 1550 nm

Keywords

borosilicate glasses; fibre lasers; high-speed optical techniques; laser materials processing; optical directional couplers; optical fabrication; optical glass; optical losses; optical waveguides; 1 MHz; 1310 to 1550 nm; borosilicate glass; directional coupler; femtosecond fiber laser; insertion loss; optical waveguides; three-dimensional writing method; Directional couplers; Fiber lasers; Glass; Laser modes; Optical fiber couplers; Optical sensors; Optical waveguides; Telecommunications; Ultrafast optics; Waveguide lasers; Buried optical waveguides; directional couplers; femtosecond laser writing; optical device fabrication; ultrafast laser processing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.884241

Filename

1705522