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Proceedings Paper

High-speed MEMS swept-wavelength light source for FBG sensor system
Author(s): Takanori Saitoh; Kenichi Nakamura; Yoshifumi Takahashi; Koichiro Miyagi
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Paper Abstract

A high-speed MEMS swept-wavelength light source (SLS) for an FBG sensor system is proposed and demonstrated. It is basically a multi-mode external-cavity laser diode (LD), and consists mainly of an LD head, diffraction grating, and electromagnetically actuated MEMS scanning mirror. It has a linewidth of 0.03 nm, scan range from 1508 to 1582 nm, scan rate of 0.57 ms and output power of 10 mW. The heart of the MEMS SLS is the MEMS scanning mirror (8 x 6 mm) that changes the oscillation wavelength continuously and rapidly. The scanning mirror is actuated by electromagnetic force derived from a permalloy piece glued on the back of the mirror and a C-shape electromagnet. The MEMS SLS allows construction of a low-cost, simple and high-speed FBG interrogator system.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623604
Show Author Affiliations
Takanori Saitoh, Anritsu Corp. (Japan)
Kenichi Nakamura, Anritsu Corp. (Japan)
Yoshifumi Takahashi, Anritsu Corp. (Japan)
Koichiro Miyagi, Anritsu Corp. (Japan)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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