Table 1.

A summary of the strain/temperature discrimination methods using DOFS configurations.

Method	Configuration	Refs.
Brillouin	Brillouin frequency shift	[10,11]
	Brillouin amplitude effects with LEAF fiber	[12,13]
	Dispersion shifted fiber	[14]
Brillouin and Raman hybrid	Raman–Brillouin gains	[15,16,17]
Brillouin and Rayleight hybrid	Frequency shift	[18]
Rayleight scattering	Fiber with core-offset splicing	[19]
Photonic crystal fiber (PCF)	Brillouin	[11,20,21,22,23]
FBG	Dual wavelength	[24]
FBG on PMF	Polarization-Maintaining Fiber analysis	[25]
OTDR-BOTDA	Time delay	[26]
OFDR	PMF, Rayleigh scattering, auto-correlation function	[27]