| Features Operating Temperature ：–40ºC to +85ºC Wavelength Range ：380-2200nm N.A.：0.22 ± 0.02 Fiber core material ： Square core low hydroxyl pure quartz fiber core Cladded material ： Fluorine doped quartz cladding Coating material ： Double layer UV cured acrylic resin High damage threshold Filter tension 100kpsi Bending radius ： Short term ＞70mm； Long term ＞140mm（@ Fiber core diameter 400x400um） Concentricity Tolerance ：≤30um@ Fiber core diameter 400x400um Non circularity of core ： ≤2%@ Fiber core diameter 400x400um Cladding non-circularity： ≤2%@ Fiber core diameter 400x400um Meets biocompatibility requirements Core package ratio/coating/buffer layer can be customized |