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  • Title: Compact single-chip VMUX/DEMUX on the silicon-on-insulator platform.
    Author: Feng D, Feng NN, Kung CC, Liang H, Qian W, Fong J, Luff BJ, Asghari M.
    Journal: Opt Express; 2011 Mar 28; 19(7):6125-30. PubMed ID: 21451636.
    Abstract:
    We demonstrate a compact, single-chip 40-channel, dense wavelength division multiplexing (DWDM) variable attenuator multi/demultiplexer (VMUX/DEMUX) by monolithic integration of an echelle grating and high-speed p-i-n VOA on the silicon-on-insulator (SOI) platform. The demonstrated device has a flat-top filter shape, on chip loss of 5.0 dB, low PDL of 0.3 dB after compensation of the polarization dependent frequency (PDF) shift, a fast attenuation response speed of 3 MHz, and an area of only 25 mm by 10 mm.
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