High-performance FBG Interrogators for precise sensing

State-of-the-art single or multi-channel FBG interrogators with independent or shared sources and dual mode operation: Full spectral sweep or edge detection mode (acoustic emission measurement).

fbgi

Componous FBGIs

All our interrogators are designed and manufactured in-house, offering state-of-the-art spectral resolution and stability. Paired with fully customizable software and dual mode of operation, they can be adapted to a wide range of applications, from simple data logging to advanced signal processing and analysis.

Componous FBGI advantages

The high resolution of the Componous FBGI allows the detection of features that are not resolved by typical commercially available and significantly more expensive FBGI. Example: Diametric loading of FBG.

Fiber Bragg Grating Interrogators (FBGIS)

FBGIs are advanced optical instruments designed to detect and analyze light reflected from fiber optic sensors (FBGs), providing high-precision measurements with fast, real-time response. They can accurately quantify changes in strain, temperature, pressure, vibration, and more, translating the optical signals from FBGs into actionable data for industrial, medical, research and structural monitoring applications.

Product specifications

Table of specs

Number of optical channels

1-4 under shared or individual source configuration

Spectral range (per channel)

10-20 nm (around telecoms C-band, customizable)

Spectral resolution (hardware)

1pm (minimum)

Spectral tuning step (hardware)

2pm

Wavelength accuracy

1 pm at full speed, 0.5 pm at 0.25x speed

(Mode) Full spectrum sampling frequency

10Hz (@5pm)

(Mode) Acoustic Emission sampling frequency

0 – 300 kHz

Data interface

Ethernet (TCP/UDP) | Single board computer (SBC)

Operating conditions

-15ºC - 60ºC

Dimensions

208 mm x 160 mm x 48 mm

Laser wavelength stability

1 pm over 5hrs
3 pm over 13 hrs of continuous operation

Laser power stability

Better than 0.7% over 13 hrs

Optical signal detection dynamic range

36 dB

Maximum optical output power:

1.5 mW / channel (independent sources)
0.4 mW / channel (4 optical output / shared sources)

Power consumption while sweeping spectrally

<5.5W

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