Noise Floor Analysis and Compensation in Long-Range ESA-Free Optical Correlation-Domain Reflectometry

Abstract

We experimentally analyze the distorted noise floor peculiar to the kilometer-order range distributed reflectivity measurement by high-speed optical correlation-domain reflectometry. We also show that this noise floor can be compensated by appropriate filtering.

Compensation of noise floor distortion in long-range simplified optical correlation-domain reflectometry without the use of electrical spectrum analyzer

“…Note that this work is a complement to the preliminary results presented in Ref. 27. The additional value of this extended paper lies in the complemented theory of the cause of distortion of the noise floor as well as further results that support the reliability of the newly developed configuration under arbitrary experimental conditions.…”