THORLABS vytran GPX3800, Руководство пользователя

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GPX3800 and GPX3850 Glass Processors Chapter 5: Operation
Page 28 TTN047534-D02
Splice Power
This is the amount of power the filament will deliver during the splice. Check the filament
power displayed in the Splice Menu. To change the splice power value, select the power
window and enter the desired splice power in watts. Refer to Figure 9 for typical values.
On-Duration
This is the length of time the filament will receive power during the splicing process.
Check splice time displayed in Splice Menu. To change the splice time, select the splice
time window and enter the desired splice time in seconds. For silica-based fibers, splice
times should be between 2 - 15 s. A splice time of 5 - 7 s is typical for Ø125 µm cladding
fiber.
Pre-Gap
The distance between the fiber end faces established by ‘Gap’ process.
Pre-Push
This is the distance the fibers are pushed together prior to the fusion process. Check the
pre-push distance displayed in the Splice Menu. To change the pre-push distance to
another value, select the pre-push window and enter the desired pre-push distance in
microns.
Hot-Push
This is the distance the fibers are pushed together after being pre-heated by the filament.
Check the hot-push distance displayed in the Splice Menu. To change the hot-push
distance, select the hot-push window and enter the desired hot-push in microns.
Push Velocity
The is the velocity at which the hot push takes place in um/sec.
Hot-Push Delay
This is the length of time the filament will heat up before the hot-push is performed.
Check the hot-push delay displayed in the Splice Menu. To change the hot-push delay,
select the hot-push delay and enter the desired hot-push delay in seconds. A value of
200 milliseconds is a good starting hot-push delay for Ø125 µm fibers.
Argon
This is the flow rate of argon for when the filament turns on. There is always a
background flow rate (typically 0.15 L/min). The argon gas flow rate increases when the
filament is on. FTAV2 filaments typically use an argon flow rate of 0.20 L/min, while
FTAV4 filaments typically use an argon flow rate of 0.35 L/min.
Splice Offset
A splice offset adjusts the offset distance between the cores of dissimilar fibers. When
the normalization process (Section 5.5.2) is run, the View to Splice distance is set such
that the filament is centered along the z-axis between the fibers. A splice offset can help
align the larger core diameter fiber with the smaller diameter core fiber.
Item # FTAV2 FTAV4 FTAV4 FTAV6
Fiber Cladding Diameter (µm) 125 250 400 1000
Pre-Gap (µm) 8 10 15 25
Pre-Push (µm) 5 5 0 5
Hot Push (µm)
14 18 30 40
Hot Push Delay (s)
0.2 0.6 1 1.8
Hot Push Velocity (µm/s) 50 75 100 50
Argon Flow Rate (L/min) 0.20 0.35 0.35 0.50
Splice Power (W) 58 98 120 190
Splice Time (s) 7 7.5 8.5 12
Figure 9 Table of Typical Splice Settings