Research on FBG-Based Sensor Networks and Their Coexistence with Fiber Optical Transmission Systems

Table 2

Calculated and detected FBG optical sensor central signal frequencies using both methods.

FBG sensor’s no.	Central peak frequency (THz) obtained by		Difference (GHz)
	Calculated central frequencies	Measured with our proposed peak detection algorithm
1	193.800	193.785	15.166
2	194.008	193.994	14.084
3	194.217	194.201	15.385
4	194.425	194.409	15.642
5	194.633	194.616	17.322
Channel spacing (GHz)	208.285	207.746	0.539