Figure 2.

Properties of scattering dot specimen inscribed into the core of standard single mode optical fiber for different inscription parameters. (a) Distributed backscatter intensity; the green shaded (unmodified) segment is used as backscatter reference. (b) integral power of scattering dots; the horizontal lines depict the integral backscatter power levels of segments of unmodified standard fiber for various interrogator pulse widths W. (c) Integral width of peak as determined by OFDR and (d) peak amplitude of individual scattering dots.