Wide bandwidth, low loss 1 by 4 wavelength division multiplexer on silicon for optical interconnects

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We demonstrate an add/drop filter based on coupled vertical gratings on silicon. Tailoring of the channel bandwidth and wavelength is experimentally demonstrated. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 6nm channel separation, 3nm bandwidth, a flat top response with < 0.8dB ripple within the 3dB passband, 1dB insertion loss and 16dB crosstalk suppression. The device is ultracompact, having a footprint < 2 X 10−9m2.
Original languageEnglish
Pages (from-to)2401-2409
Number of pages9
JournalOptics Express
Volume19
Issue number3
Early online date24 Jan 2011
DOIs
Publication statusPublished - 31 Jan 2011
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