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FBG Wavelength Interrogator

The FBG Wavelength Interrogator AGSWA is designed to be a robust, reliable and long-term filed operation for the FBG sensing system. Based on a built-in wavelength analysis module, AGSWA can update the data in high accuracy and high frequency.

AGSWA responds directly to the user commands of the optical interrogator core and outputs sensor wavelength data. It provides a single suite of tools for data acquisition, computation, and analysis of optical sensor networks. 

Features of FBG Wavelength Interrogator

  • Built-in Wavelength Module

  • Spectral Diagnostic View for Optimizing Sensor System Setup and Operation

  • High Stability and Reliability

  • Fast, Simple and Repeatable Installation

Application of FBG Wavelength Interrogator

  • Continuous Lifetime Health Monitoring of Bridges, Dams, Buildings, Tunnels, Ships, Aircraft, Trains, and Other Complex Structures

  • Measurements of Fiber Bragg Grating (FBG) Strain Gages, Temperature Probes, Accelerometers, Pressure, Displacement, and Other FBG Sensors

  • 3Simultaneous Static and Dynamic Measurement

Specification of FBG Wavelength Interrogator

Optical Properties

Number of Optical channels

1, 2, 4, 8, 16, 24, 32 or 36


Scan Frequency

5000 Hz


Single Channel

Four Channels

Wavelength Range


Wavelength Repeatibility


Wavelength Resolution

1 pm

Dynamic Range

>30 dB

Standard number of FBG Per Channel





Data Processing Capabilities



Software Features

For spectral analysis, peak detection, data logger, peak tracking, user can read out in temperature, pressure, or strain, etc, save data to excel document

Software support


Mechanical, Environmental, Electrical Properties



Operation Humidity


Operation Temperature

-5° to +50° C

Storage Temperature

-20° to +60° C

Input Voltage

DC 12V

Maximum Power


Product Inquiry
Leading manufacturer of AtGrating’s fiber bragg grating products.
5F, Building B, Chiwan Industry Park, Shaodi Road, Shekou, Nanshan, Shenzhen 518067, China