Furukawa electric S178, Руководство пользователя

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Operating Instructions
6-15
6.2.7. Performing an Attenuation Splice
The attenuation splice is to splice fibers with a certain splice loss.
1. Modify the parameter “Attenuation” or “Offset” in the Fusion Program for the required
attenuation. Refer to 8.2.1. The maximum value for the attenuation is 10.0dB and offset is
75µm. The following fusion programs are preinstalled for attenuation splice setting by splice
loss and offset.
z ATTN-ATTN 1300: Setting splice loss for 1300nm wavelength
z ATTN-ATTN 1550: Setting splice loss for 1500nm wavelength
z OFST-OFST 1300: Setting fiber offset for 1300nm wavelength.
2. Select the desired Fusion Program for attenuation splice. Refer to 5.3.1.
3. Load the fibers and perform the splice as normal.
4. The several additional arcs are repeated until the estimated splice loss becomes close to
the programmed value.
♦
Make sure to perform an Arc Check before the splice to obtain more accurate attenuation.
♦
The mode field diameter varies depending on the wavelength of the light source. Input
appropriate mode field diameter into the parameter.
♦
The tolerance is approximately within 10%.