Abstract
The free-spectral-range (FSR) of the Fabry-Perot cavity can be determined with the null method using an electric-optical modulator, a frequency modulation and the lock-in detection. In this paper, we discuss the reduction of the measurement uncertainty for the FSR. The relative measurement uncertainty (ΔFSR / FSR) of 10–8 order has been estimated.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have