2-D array wavelength demultiplexing by hybrid waveguide and free-space optics
- 1 January 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
We demonstrate wavelength demultiplexing into a raster-scanned 8/spl times/9 array by combining a 1/spl times/8 arrayed waveguide grating with a free-space grating multiplexer. 9 diffraction orders from each AWG output are separated onto a 2D array on an InGaAs camera or coupled into a scanned output fiber. This first proof-of-principle device had 0.2 nm channel -20 dB width, >35 dB spectral extinction and 15 to 25 dB insertion loss over the 70 nm operating range.Keywords
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