Title :
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
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;
Conference_Titel :
Group IV Photonics (GFP), 2010 7th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6344-2
DOI :
10.1109/GROUP4.2010.5643436
