Athermal Packaged FBG
ARTICLE GTL-FBG-AP-850
Fiber Bragg Gratings are sensitive to changes in temperature. Their thermo sensitivity is about 6.7 ppm/ ⁰K (+0.11 pm/ ⁰K at wavelength 1550 nm).
Athermal packaged FBG is intended for passive compensation of FBG thermal sensitivity by expansion coordination of case elements and FBG wavelength shift under the influence of temperature. It allows customers to achieve all advantages of Fiber Bragg Gratings, while preserving high wavelength stability in the wide temperature range.
Typical FBG‘s reflection spectrum
FBG‘s central wavelength variation with temperature for unpacked and athermal packaged gratings
FBG CHARACTERISTICS | ARTICLE GTL-FBG-AP-850 | TOLERANCE/NOTE |
| Wavelength range, nm | 600÷ 2300 | ± 0.1 ÷ ± 1 custom request |
| Types of fiber | Single-Mode, PM, Double clad, LMA | or custom |
| Wavelength to quick order, nm | 633, 650, 852, 976, 1030, 1060, 1064, 1063 ÷ 1078, 1080, 1125, 1150, 1510 ÷ 1580, 1551, 1650, 1874 ÷ 1878, 1900, 1908, 1952, 2300 | ± 0.1 ÷ ± 1 custom request |
| Thermal Wavelength stability (0 ÷ +70 ֩C), nm | < 0.16 | |
| Reflectivity, % | 5 ÷ 99,9 | 2 ÷ 5 custom request |
| Bandwidth (WFHM), nm | 0.05 ÷ 1,2 | custom request |
| FBG Length, mm | 1 ÷ 20 | custom request |
| SLSR, dB | › 8 | custom request |
| FBG Pigtail Length, m | ≥ 0.5 | or custom |
| Tensile Strength, kpsi | › 100 | |
| Optical Connector | Bare fiber, FC/APC, LC/APC | or custom |
| Package dimensions (LxWxH),mm | 66 x 18 х 12 |
