Passively-coupled, low-coherence interferometric duct profiling with an astigmatism-corrected conical mirror

Fig 6 Excel file “Data fig 6” (one worksheet) with evolution of beam-waists in z, from Zemax model for combined cone mirror and custom lens. Also includes data for other working distances, as mentioned in paragraph 3 of p 10.

Fig 7 Excel file with experimental beam-waist radii (cone and lens) and numbers from Zemax model “Data fig 7” (one worksheet). Fig 11 Excel file with experimental and calculated data for fibre centroid positions in arc array. Also contains data for relative positions of probe and arc array centre axes, before and after adjustment. “Data fig 11” (three worksheets).