Four-function optical switch with LIGA alignment plates

Shanalyn A. Kemme; Olga Blum Spahn; Todd R. Christenson; William C. Sweatt; Joel R. Wendt; D. W. Peters; T. R. Carter; S. Samora

doi:10.1117/12.426865

15 May 2001 Four-function optical switch with LIGA alignment plates

Shanalyn A. Kemme, Olga Blum Spahn, Todd R. Christenson, William C. Sweatt, Joel R. Wendt, D. W. Peters, T. R. Carter, S. Samora

Author Affiliations +

Proceedings Volume 4284, Functional Integration of Opto-Electro-Mechanical Devices and Systems; (2001) https://doi.org/10.1117/12.426865
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

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.

Citation Download Citation

Shanalyn A. Kemme, Olga Blum Spahn, Todd R. Christenson, William C. Sweatt, Joel R. Wendt, D. W. Peters, T. R. Carter, and S. Samora "Four-function optical switch with LIGA alignment plates", Proc. SPIE 4284, Functional Integration of Opto-Electro-Mechanical Devices and Systems, (15 May 2001); https://doi.org/10.1117/12.426865

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