Abstract
A multiplexed optical fiber Michelson interferometer system that is self-referenced with a stabilizing feedback loop is presented. This system employs fiber Bragg gratings and wavelength division multiplexing technique to combine two optical fiber interferometers that share the same optical path in the main part of the optical system. When one Michelson interferometer, which uses the fiber Bragg gratings as reflective mirrors and is used as reference interferometer, is stabilized by an electric feedback loop, the other interferometer, which is used for the measurement, is also stabilized. This system is therefore suitable for online precision measurement. An active phase-tracking technique is applied for signal processing to achieve high resolution.
| Original language | English |
|---|---|
| Article number | 051011 |
| Pages (from-to) | 051011-1 - 051011-5 |
| Number of pages | 5 |
| Journal | Optical Engineering |
| Volume | 46 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 22 May 2007 |
Bibliographical note
Copyright 2007 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Keywords
- Displacement
- Fiber optics
- Interferometry
- Measurement
- Metrology