Figure 1

Schematic of the SA-BOCDR setup. AMP: electrical amplifier, EDFA: erbium-doped fiber amplifier, ESA: electrical spectrum analyzer, FUT: fiber under test, OSC: oscilloscope, PD: photodiode, PSCR: polarization scrambler.

Schematic of the SA-BOCDR setup. AMP: electrical amplifier, EDFA: erbium-doped fiber amplifier, ESA: electrical spectrum analyzer, FUT: fiber under test, OSC: oscilloscope, PD: photodiode, PSCR: polarization scrambler.