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A silicon-based moving-mirror optical switch

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8 Author(s)
Dautartas, M.F. ; AT&T Bell Labs., Breinigsville, PA, USA ; Benzoni, A.M. ; Chen, Y.C. ; Blonder, G.E.
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A multimode 2×2 optical switch made from chemically micro-machined silicon piece parts is described. This switch uses microlenses, aligned to fibers by a silicon base, to expand the optical beam and relax alignment tolerances and a pivoting silicon mirrors as the switching mechanism. The moving mirror switch meets or exceeds all the requirements for FDDI applications. The switch loss is typically 0.7 dB and operates at 5 V and 30 mA. The switch insertion/deinsertion time is less than 10 ms, and the optical interruption time is less than 1 ms. The switch design, which minimizes alignments in fabrication and provides for z-axis assembly and the low cost of the high precision piece parts contribute to making this a low-cost switch to manufacture

Published in:

Lightwave Technology, Journal of  (Volume:10 ,  Issue: 8 )

Date of Publication:

Aug 1992

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