Fiber Bragg Grating (FBG) ︱TVS-S-1200
▪ Structural health monitoring in civil engineering
▪ Transportation industry (railway, highway, aerospace)
▪ Energy industry (wind power generation, pipeline monitoring, nuclear reactors, etc.)
▪ Medical temperature and stress-strain monitoring
▪ Sensor packaging
Description
Fiber Bragg grating (FBG) is the use of fiber material photosensitivity, through the UV exposure method to the incident laser coherent field pattern into the fiber core, the refractive index along the axis of the fiber core to produce periodic changes in the fiber core, so as to form a permanent space of the phase grating, its effect is essentially in the fiber core to form a narrow band (transmission or reflection) filter or mirror. When a beam of wide spectrum laser passes through a fiber grating, the wavelength that meets the Bragg condition of the fiber grating will be reflected, and the rest of the wavelength will continue to be transmitted through the fiber grating.
Key Features
▪ High tensile strength
▪ High precision, high resolution
▪ No electromagnetic interference, intrinsically explosion-proof
▪ Small size, light weight
▪ Can achieve absolute measurement
▪ No calibration, strong reuse capability
▪ Cost-effective
Performance Properties
|
Fiber Type |
SMF-28, Polyimide |
|
Wavelength range |
1510～1590nm |
|
Custom center wavelength deviation |
±0.5nm |
|
FBG Length |
~10 mm |
|
Peak Reflectivity (max) |
≥80% |
|
FWHM (- 3 dB) |
0.25 nm (±0.05 nm) |
|
Isolation |
≥15dB |
|
Strain Limits |
7,000 με |
|
Strain Sensitivity |
~ 1.2 pm/με |
|
Operating Temperature Range |
-40~200℃ |
|
Thermal Response |
~ 10pm/℃ |
|
Fiber Coating |
Polyimide |
|
Optical connectors |
FC/APC or LC/APC |
Ordering Information
TVS-S-1200 - AA AA- BB - CC - DD - EE
AAAA：FBG center wavelength, the array, can list multiple wavelength values, unit nm;
BB：The number of FBG, for example, 08, is 8 FBGs array.
CC：When the number of FBG is greater than 1, the center distance of FBG is mm;
DD：Length of optical fibers at both ends (unit: mm);
EE：Fiber connector, FC-FC/APC, LC-LC/APC
