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Fabrication of narrow-band channel-dropping filters

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6 Author(s)
M. Levy ; Microelectron. Sci. Lab., Columbia Univ., New York, NY, USA ; L. Eldada ; R. Scarmozzino ; R. M. Osgood
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The first fabrication and demonstration of narrowband channel-dropping filters, which have recently been proposed for use in high-bit-rate communication systems, is described. The devices use waveguide couplers combined with quarter-wave-shifted distributed-feedback (DFB) resonators and can, in principle, produce resonant transfer of 50% of incident power with sub-angstrom bandwidths. Resonant transfer of power at the expected wavelength and within the expected range of efficiency and bandwidth for this design is shown.<>

Published in:

IEEE Photonics Technology Letters  (Volume:4 ,  Issue: 12 )