70S_Rev1
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Splice Menu
Attenuation splice mode
Attenuation splice mode makes an intentional core axial offset to create attenuation at the
splice point. Two types of attenuation splice modes are included in the splicer as stated
below. Select either "AT1(SM)", "AT1 (DS)", "AT2(SM)", "AT2 (DS) or AT2 (MM) in data
base area at [Fiber Type].
[AT1] mode
[AT1] creates an intentional core axial offset and splices fibers. [AT1] mode provides an
estimated splice loss, but this should be regarded as a reference as the estimated splice
loss may not be correct in some cases, depending on fiber properties. A power meter is
recommended for correct splice loss measurements.
Splicing parameters
Parameter
Description
Target Loss
Sets target splice loss.
Coefficient
If actual splice loss measured does not match [Target Loss], the
“coefficient” can be used to adjust this. This is often more practical
than "Target loss" or "MFD" in terms of accuracy.
MFD-Left
MFD-Right
Sets MFD of fibers to be spliced.
Other Parameters Refer to other splice modes for complete description.
[AT2] mode
This mode allows the users to set a starting core offset value and a finishing core offset
value. Set [Start Offset] manually and then splicing starts. Re-arcing is performed
continuously / automatically until the axial offset reaches [Stop Offset] value. A splice loss
estimate is not performed.
Splicing parameters
Parameter
Description
Start Offset
Sets axial offset amount before splicing.
Stop Offset
Re-arc is continuously performed until axial offset reaches specific
offset amount [Stop Offset]. Axial offset amount decreases as
splicing occurs, so [Stop Offset] must always be smaller than [Start
Offset].
The maximum amount of [Stop Offset] is 80% of [Start Offset].
Other Parameters Refer to other splice modes for complete description.
[AT2] mode provides more stable performance than [AT1] mode, but some variation
may inevitably occur. To decrease variation, set the [Cleave Limit] as low as
possible.
Attenuation splices made with [AT1] / [AT2] modes are not as accurate as power
meter attenuation feedback splicing.
[AT2 (MM)] mode is for attenuation splicing with MM fiber. Cladding alignment is
performed with [AT2 (MM)] mode.