3/ For G652 fibers: G652/SM AUTO mode 4/ Unidentified fiber: AUTO mode Once the correct splice mode has been selected, it is important to calibrate the arc. Once you've selected the right splice mode and calibrated the arc, you're ready to splice !The core difference during fusion splicing involves Mode Field Diameter (MFD, Defined as the diameter at which the light intensity drops from its central maximum to 1/e², it is typically about 15% larger than the physical core diameter. 657A1: These two fibers have. Recommendation ITU-T G. 652 describes the geometrical, mechanical and transmission attributes of a single-mode optical fibre and cable which has zero-dispersion wavelength around 1310 nm. 652 fibre was originally optimized for use in the 1310 nm wavelength region, but can also be used in. If your splicer machine is up to date you should have AUTO splice modes as below: If this is not the case, you need to add these modes manually. The splicer displays estimated loss (e. 15 dB, re-cleave and re-splice. So this fiber. Below, FOA technical advisor Joe Botha provides some interesting data on the splicing compatibility of conventional G. With so many cable designs today, like microcables or high.