Study on the Life-Cycle Health Monitoring Technology of Water-Rich Loess Tunnel

Table 1

Parameters of the optical fiber.

Name	Type	Diameter (mm)	Weight (kg/km)	Operating wavelength (μm)	Refractive index
Sensing optical fiber	NZS-DSS-C07	2	1.2	1.30 to 1.45	1.47
Temperature compensation optical fiber	NZS-DTS-C06	5	15	1.25 to 1.50	1.47