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Proceedings Paper

Bulk micromachined optical Fabry-Perot modulator
Author(s): Jason P. Chaffey; Mike Austin; Igor Switala
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Paper Abstract

A new bulk micromachined Fabry-Perot modulator fabricated using (110) silicon is presented. The modulator has been developed to reduce the alignment and packaging restrictions imposed on surface micromachined Fabry-Perot modulators. The Fabry-Perot modulator consists of two vertical micromachined cantilever mirrors. The modulator is capable of a modulation depth of 7.8dB for modulation frequencies of up to 100kHz making it suitable for multiplexing low bandwidth sensors. Analytical results of the performance of the modulator compared to current microelectromechanical systems (MEMS) modulators are given and experimental results of the fabrication process indicate the practical realisation of the modulator. The design aspects of the modulator are analysed including the trade-off between bandwidth, beam length and drive voltage.

Paper Details

Date Published: 25 March 2004
PDF: 12 pages
Proc. SPIE 5277, Photonics: Design, Technology, and Packaging, (25 March 2004); doi: 10.1117/12.522028
Show Author Affiliations
Jason P. Chaffey, RMIT Univ. (Australia)
Mike Austin, RMIT Univ. (Australia)
Igor Switala, Defence Science and Technology Organisation (Australia)


Published in SPIE Proceedings Vol. 5277:
Photonics: Design, Technology, and Packaging
Chennupati Jagadish; Kent D. Choquette; Benjamin J. Eggleton; Brett D. Nener; Keith A. Nugent, Editor(s)

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