1.Introduction

The integratedDVS is a optical module designed based on Rayleigh back-interference sensing technology, which is the core component of the distributed fiber optic vibration sensing system.It is highly integrated and combines multiple functional units in a compact structure for easy installation and system integration.Optically, it has a specific wavelength range and high precision, stable output optical power, good spectral characteristics, and ensures the quality of optical signals.The electrical characteristics are stable, clear operating voltage, lowpower consumption and standardelectrical interface.

2.Characteristics

(1)High sensitivity: It can detect extremely weak vibration signals and has good response to small vibration events.

(2)Distributed measurement: Combined with the data acquisition card, it can realize distributed vibration monitoring of long-distance optical fibers, and obtain vibration information at various locations along the optical fiber in real time.

(3)Excellent performance: the output optical power and wavelength are stable in high and low temperature environments.

(4)Strong anti-interference ability: it has good immunity to electromagnetic interference, environmental noise, etc., and can work stably in complex environments.

(5)Easy to integrate and easy to maintain: small size, easy to install, can be integrated with distributed optical fiber vibration sensing system.

3.Parameters