Draw Tower Gratings (DTG®s) written into Low Bend Loss fiber LBL-1550-80 which has a cladding diameter of 80μm and is optimized for operation in the 1550nm wavelength window.
The reduced cladding diameter offers several major advantages compared to standard 125µm fibers:
1) Unobtrusiveness – particularly interesting for embedding applications including carbon composite structures and medical catheters.
2) Increased sensitivity – less force is required to strain the fiber enhancing the performance of sensors based on force or acoustic sensing.
3) Reduced bending radii – lower surface strain levels enabling more compact sensor designs.