Influence of system configuration on a ratiometric wavelength measurement system,
- Q. Wu, P. Wang, Y. Semenova, G. Farrell
- Meas. Sci. Technol
We derive an analytic equation for a ratiometric wavelength measurement system and analyze the influence of the optical source signal bandwidth. Our investigation shows that in a particular optical sensing system, the higher the bandwidth of the optical signal, the better resolution the system will achieve. Experiments based on two types of optical signals (output signal of a tunable laser and a fiber Bragg grating) were carried out, and experimental results verified both the simulation results and the theoretical analysis.