Abstract
A novel, sensitive, simple, and robust strain interrogation technique is analyzed and experimentally tested. By locking a laser wavelength to the midreflection wavelength of a standard fiber Bragg grating and measuring the error signal, we achieve high dynamic strain sensitivity of 45 picostrain/ √Hz rms at 3 kHz, where the dominant noise in the experiment is the laser frequency noise.
| Original language | English |
|---|---|
| Pages (from-to) | 1930-1932 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 23 |
| Issue number | 24 |
| DOIs | |
| State | Published - 15 Dec 1998 |