Fisens Sensor Chains

FiSens Sensor Chain

FiSens® FBG Sensor Chains

FBG Sensor Chains for use with FiSpec Interrogators

The FiSens® FBG Sensor Chain is a spliceless chain of multiple high-precision FBG sensors “written” into a single SM800 fiber. When the sensor is paired with a FiSens® interrogator offers a multipoint, distributed sensing solution for temperature or strain measurements. The FBG sensor chains utilize a unique fentosecond (fs-Laser) Laser Inscription method offering an innovative FBG-based solution with best performance together with lowest cost per sensor point on the market.


The following is a summary specification FiSens FBG Sensor Chains. Consult the individual data sheets and manual for detailed performance and interface information.

Sensor Chain Length Up to 500 meters
Number of FBGs Up to 30
Grating Length 1mm
Grating Spacing Min 1mm
Fiber Type High Temperature SM800 single-mode fiber, 5.6µm core, polyimide coated
Fiber Bend Radius Min 5mm
Sensor Capillary Options PEEK, Stainless Steel, Silica
Lead-in Jacketing Options Glass textile sleeving (GL) or Stainless Steel Corrugated Tubing (SST)
Temperature Range -40°C to +350°C
(Depends on selected Fiber, Capillary, and Jacketing Options)

Specifications subject to change without notice
FiSens® is a registered trademark of FiSens GmbH


  • Up to 30 measurement points per fiber
  • Sensor chains up to 500 meters
  • Innovative and automated fs-Laser Inscription Method enables high precision FBG sensor chain manufacturing
  • Temperature measurement precision to 0.1°C
  • Strain measurement precision to 1µε
  • Customizable FBG configurations
  • Stable up to 350°C


  • FC-APC, Standard Connection
  • Sensor chains fabricated from industry-standard SM800 single-mode fiber

Software Support

  • Compatible with FiSens® X100/X150 Interrogator
  • BraggSens software is LabView-based
  • ASCII protocol available for customer software integration
  • Contact Sales for application-specific engineering support


Call 805.389.6600

Ordering Information

Quick Ship Configurations

FBGX100 X100 Interrogator, USB Interface
FBGX150 X150 Interrogator, USB Interface
2-GL-20-100-PE-W Sensor Chain, 2m Textile Jacketed Lead-In, 20 points with 100 mm spacing, PEEK Capillaries, Wide Spectral Range
2-GL-20-100-FI-N Sensor Chain, 2m Stainless Steel Jacketed Lead-In, 20 points with 100 mm spacing, Bare Fiber, Narrow Spectral Range
2-SST-20-100-SSC-N Sensor Chain, 2m Stainless Steel Jacketed Lead-In, 20 points with 100 mm spacing, SST Capillaries, Narrow Spectral Range