Fibre interferometry holds many advantages for the online measurement of high precision surfaces. However, the method requires stabilising against path length change due to temperature drift and vibration. A method of stabilising such an interferometer using intensity feedback was examined and shown to be ineffective at low frequencies. A second method, using real-time calculated phase feedback was also investigated, and was observed to be more robust
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.