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Widely tunable torsional optical filter

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7 Author(s)
Mateus, C.F.R. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Chih-Hao Chang ; Chrostowski, L. ; Yang, S.
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A broad range tunable optical filter using a torsional micromechanical structure is presented. The device has a continuous tuning range over 100 nm, from 1500 to 1600 nm, and the structure eliminates the potential catastrophic discharge problem associated with electrostatic micromachines. Transmission of a 2.5-Gb/s directly modulated 1550-nm vertical-cavity surface-emitting laser through the tunable filter shows no power penalty.

Published in:

Photonics Technology Letters, IEEE  (Volume:14 ,  Issue: 6 )