Gaussian Beams on a Silicon-on-Insulator Chip Using Integrated Optical Lenses

Author

Guanghui Ren ; Nguyen, Thach G. ; Mitchell, A.

Author_Institution

Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia

Volume

26

Issue

14

fYear

2014

fDate

July15, 15 2014

Firstpage

1438

Lastpage

1441

Abstract

An on-chip optical lens, which can launch expanded and well-collimated Gaussian beams in planar free space with control over propagation angles has been designed, fabricated, and characterized. The results agree well with simulations, maintaining a beam width between 26- and 28-μm beam width even after 750-μm propagation in free space on a silicon chip. Changing the position of the launched field enables the propagation angle to be varied. Both continuous and discrete angle variations have been experimentally demonstrated.

Keywords

integrated optoelectronics; lenses; light propagation; optical design techniques; optical fabrication; silicon-on-insulator; Si; beam width; continuous angle variation; discrete angle variation; integrated optical lenses; on-chip optical lens; planar free space; propagation angle; silicon chip; silicon-on-insulator chip; size 26 mum to 28 mum; well-collimated Gaussian beams; Couplers; Lenses; Optical device fabrication; Optical fibers; Optical imaging; Integrated optics devices; collimation; lenses; wave propagation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2326671

Filename

6823140