Distributed Fiberoptic Sensor for Simultaneous Temperature and Strain Monitoring Based on Brillouin Scattering Effect in Polyimide-Coated Fibers

<div>Experimental setup of polyimide-coated optical fiber-based BOTDR system. EOM, electro-optic modulator; EDFA, erbium-doped fiber amplifier; FUT, fiber under test; PC, polarization controller; AWG, arbitrary waveform generator; OI, optical isolator; PD, photodetector; FBG, fiber Bragg grating; VOA, variable optical attenuator; OC, optical coupler; DAQ, data acquisition card; CIR, circulator; and PS, polarization scrambler.</div>

International Journal of Optics

fig1

Figure 1

Figure 1: Distributed Fiberoptic Sensor for Simultaneous Temperature and Strain Monitoring Based on Brillouin Scattering Effect in Polyimide-Coated Fibers 

Figure 1 | Distributed Fiberoptic Sensor for Simultaneous Temperature and Strain Monitoring Based on Brillouin Scattering Effect in Polyimide-Coated Fibers 