Table 5.

Sensing characteristics of different types of all-fiber device structures.

Type of Structure	Sensitivity (dB/°C)	Temperature (°C)	Ref.
MF a with Graphene	0.03	20–75	[27]
MLR b	0.043	25–60	[28]
SPF c with TiO2	0.044	−7.8–77.6	[29]
MF with Graphene	0.1018	30–80	[30]
SPF with rGO d	0.134	−7.8–77	[31]
Runway-type MKR + V2C	0.32	25–70	This work

^a: microfiber. ^b: microfiber loop resonator. ^c: side-polished fiber. ^d: reduced graphene oxide.