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Proceedings Paper

Four-function optical switch with LIGA alignment plates
Author(s): Shanalyn A. Kemme; Olga Blum Spahn; Todd R. Christenson; William C. Sweatt; Joel R. Wendt; D. W. Peters; T. R. Carter; S. Samora
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Paper Abstract

The design and on-going fabrication of an opto-electro- mechanical microsystem that acts as a four-function optical fiber switch will be presented. The four functions of the 2x2 optical switch include 1) Normal mode, where channel A and channel B pass light straight through, 2) Loopback mode, where light originating in channel A is detected in the B leg, 3) Monitor A mode, where a probe pulse is inserted into the channel B and any reflections are detected in the A leg, and 4) Monitor B mode, the compliment of 3) above. High spatial frequency gratings etched in fused silica configure the light beams through free-space substrate-mode propagation. The design for an OTDR-mode transmission grating that normally passes light from an incidence angle of 45 degrees within the silica substrate as well as passes light from a normal incidence straight through the silica will be discussed. A miniature commercial drive motor, positioned with LIGA alignment plates, rotates the optical grating disk into one of the four implemented function positions. The impact of required tolerances and packaging limitations on the optics, LIGA alignment plates, and the complete microsystem will be presented.

Paper Details

Date Published: 15 May 2001
PDF: 7 pages
Proc. SPIE 4284, Functional Integration of Opto-Electro-Mechanical Devices and Systems, (15 May 2001); doi: 10.1117/12.426865
Show Author Affiliations
Shanalyn A. Kemme, Sandia National Labs. (United States)
Olga Blum Spahn, Sandia National Labs. (United States)
Todd R. Christenson, Sandia National Labs. (United States)
William C. Sweatt, Sandia National Labs. (United States)
Joel R. Wendt, Sandia National Labs. (United States)
D. W. Peters, Sandia National Labs. (United States)
T. R. Carter, Sandia National Labs. (United States)
S. Samora, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 4284:
Functional Integration of Opto-Electro-Mechanical Devices and Systems
Michael R. Descour; Juha T. Rantala, Editor(s)

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