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DBR-based tunable optical filter

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3 Author(s)
Habbab, I.M.I. ; AT&T Bell Lab., Holmdel, NJ, USA ; Woodward, S.L. ; Cimini, L.J., Jr.

A device structure for implementing a continuously tunable optical filter is described. The proposed filter relies on the creation of a resonant optical cavity between a high-reflectivity mirror and a periodic grating, with a phase control section in between. The filter has only one transmission peak over the entire frequency range, can be tuned in a few nanoseconds, and is suitable for integration with the receiver in a photonic circuit.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:2 ,  Issue: 5 )