Article

Experimental demonstration of an ultracompact Si-nanowire-based reflective arrayed-waveguide grating (de)multiplexer with photonic crystal reflectors.

Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation,East Building No.5, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
Optics Letters (impact factor: 3.4). 08/2010; 35(15):2594-6. pp.2594-6
Source: PubMed

ABSTRACT An ultracompact reflective arrayed-waveguide grating (AWG) (de)multiplexer based on Si nanowires is demonstrated for the first time (to our knowledge). Each waveguide in the array has an individual photonic crystal (PhC) reflector at its end, making the AWG layout design very flexible. An eight-channel AWG (de)multiplexer with a channel spacing of 400 GHz is demonstrated experimentally. The total size of the fabricated AWG is as small as 134mumx115mum. The excess loss of the fabricated reflective AWG (de)multiplexer is about 3-4 dB, and the crosstalk is about -12dB.

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Keywords

AWG
 
AWG layout design
 
channel spacing
 
de)multiplexer
 
eight-channel AWG
 
fabricated AWG
 
fabricated reflective AWG
 
individual photonic crystal
 
Si nanowires
 
small
 
total size
 
ultracompact reflective arrayed-waveguide grating