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Periodic Microring Lattice as a Bandstop Filter

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4 Author(s)
Chen, W.-Y. ; Lab. for Phys. Sci., College Park, MD ; Van, V. ; Herman, W.N. ; Ho, P.-T.

We have realized a photonic bandgap structure with a linear lattice of 36 periods, with each period consisting of two microrings. This configuration relieves some current stringent fabrication requirements. The microrings were fabricated in benzocyclobutene. As a bandstop filter, the lattice has a low transmission loss of 3 dB, a wide bandgap of 1.6 nm, and a maximum extinction of 25 dB even with weak coupling to the microrings

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 19 )