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Ultra-compact, flat-top demultiplexer using anti-reflection contra-directional couplers for CWDM networks on silicon

Publication Type:

Journal Article

Source:

Opt. Express, OSA, Volume 21, Number 6, p.6733--6738 (2013)

URL:

http://www.opticsexpress.org/abstract.cfm?URI=oe-21-6-6733

Keywords:

Gratings; Integrated optics devices; Waveguides; Wavelength filtering devices

Abstract:

Wavelength-division-multiplexing (WDM) networks with wide channel grids and bandwidths are promising for low-cost, low-power optical interconnects. Wide-bandwidth, single-band (i.e., no free-spectral range) add-drop filters have been developed on silicon using anti-reflection contra-directional couplers with out-of-phase Bragg gratings. Using such filter components, we demonstrate a 4-channel, coarse-WDM demultiplexer with flat passbands of up to 13 nm and an ultra-compact size of 1.2 \&\#x000D7; 10\&\#x02212;3 mm2.

Faculty Member(s): 
Karen.Cheung
Faculty Member(s): 
Lukas.Chrostowski
Research Area(s): 
Photonics and Optics