Subwavelength grating: A new type of microphotonic waveguide and implementations to fiber-chip coupling, waveguide crossing and refractive index engineering

Author

Bock, Przemek J. ; Cheben, Pavel ; Schmid, Jens H. ; Lapointe, Jean ; Janz, Siegfried ; Xu, Dan-Xia ; Densmore, Adam ; Delâge, André ; Lamontagne, Boris ; Hall, Trevor J.

Author_Institution

Inst. for Microstruct. Sci., Nat. Res. Council Canada, Ottawa, ON, Canada

fYear

2010

fDate

1-3 Sept. 2010

Firstpage

31

Lastpage

33

Abstract

We demonstrate a new microphotonic waveguide principle based on subwavelength gratings. We also present several practical implementations of subwavelength waveguides, including a microphotonic fiber-chip coupler with a coupling loss as small as -0.3 dB, a waveguide crossover with an excess loss of 0.02dB/crossing and a PDL of <;;0.1 dB, and a new type of planar waveguide multiplexer.

Keywords

diffraction gratings; multiplexing equipment; optical waveguide components; refractive index; fiber-chip coupling; microphotonic fiber-chip coupler; microphotonic waveguide; planar waveguide multiplexer; refractive index engineering; subwavelength grating; subwavelength waveguides; waveguide crossing; waveguide crossover; Arrayed waveguide gratings; Couplers; Gratings; Propagation losses; Silicon; Strips; Subwavelength; coupler; diffraction; grating; multiplexer; silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Group IV Photonics (GFP), 2010 7th IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-6344-2

Type

conf

DOI

10.1109/GROUP4.2010.5643436

Filename

5643436