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  

 

 Athermal Packaged FBG (Article GTL-FBG-AP-850)