Abstract
Self-mixing interference (SMI) effects have been widely used in measuring the distance and displacement and velocity. Conventional methods are fringe counting and phase analysis. The former method has a precision of λ/10 in a multi-mode LD pumped solid-state laser (LDPSSL), while the latter has a precision of nearly λ/50 concerning the multiple reflections. Theoretical analysis and simulation calculations are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 488-492 |
| Number of pages | 5 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4919 |
| DOIs | |
| State | Published - 2002 |
| Externally published | Yes |
| Event | Advanced Materials and Devices for Sensing and Imaging - Shanghai, China Duration: 17 Oct 2002 → 18 Oct 2002 |
Keywords
- Displacement
- Distance
- Fast fourier transform technique
- LD pumped solid-state laser
- Self-mixing interference effect
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