NORIA is a manufacturing system designed forproducing Fiber Bragg Gratings (FBGs). A deep ultra violet laser (Coherent) and a phase mask (Ibsen Photonics) are used to transfer a periodic pattern into the core of a photosensitive optical fiber. NORIA holds several different masks in a revolver like holder, each mask having a different pattern periodicity. This flexibility allows the end-user to manufacture FBGs from predefined recipes in an automated fashion. In addition, multiple FBGs in an array can be written along the fiber at any desired position using the NORIA tools accurate positioning stage.
KEY FEATURES :
length 10 mm standard feature. Option for smaller FBG lengths down to 1 mm
Full Width Half Maximum (FWHM) <150 pm standard feature, part of predefined recipes
Side Lobe Suppression Ratio (SLSR) >15 dB standard feature, part of predefined recipes
default reflection coefficient >50 % standard feature, part of predefined recipes
central wavelength repeatability ± 50 pm central wavelength accuracy is subject to variations in fiber NA from batch to batch
Illumination profile Gaussian / Tophat Default Gaussian or Tophat profile. Option to define other profiles
Fiber Outer Diameter (excl. coating) 125 μm standard feature, option to accommodate smaller and larger OD fibers e.g. 400, 80, 60, 50 and 40 μm
Fiber coating Acrylate / Polyimide The fiber needs to be window stripped over a
minimum of 20 mm at the desired FBG location.
APPLICATIONS :
Plug & Play system which is directly ready to use after installation
Write multiple FBG’s on a 150 mm length of fiber in one go
Write uniform or apodised FBGs with a length of 1-10 mm
Load the NORIA tool with up to 16 phase masks
Use photo sensitive fibers or hydrogen loaded standard fibers
Easy to operate and load, fiber fixture system for handling loose fiber and fiber reels (option)
Solutions for stripping and recoating available as options