THORLABS Vytran GPX4000LZ, Руководство пользователя

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GPX4000LZ Glass Processor Chapter 5: Operation
Rev I, September 15, 2021
Page 49
5.14.8 Drawing Tapers
A fiber may be tapered by heating it to its softening point and applying a tensile force. As the fiber elongates, its
cross sectional area will be reduced accordingly. A taper is created by passing the fiber through the fusion source
while pulling on it by driving the fiber holding blocks at different velocities. This process is illustrated below in Figure
33.
Figure 33 Image of Taper in Progress
5.14.9 Taper Properties
The user can precisely define the taper created using the Taper Properties window, which is shown below. It is
accessed by opening the "Splice" menu and then clicking on "Taper Properties".
The first tab in this window (shown in Figure 36) lets the user determine the geometry of the taper. The following
are some brief notes regarding taper terminology.
Figure 34 Taper Dimensions Interface
When the glass processor first starts stretching the fiber and tapering it down, it creates what is referred to in this
document as the "down taper". When the fiber has been tapered down to a certain diameter, the workstation then
maintains a constant rate of stretching so that a length of the fiber will have a region with the reduced, but constant
diameter. This region is referred to as the "waist" of the fiber. After the waist has been created, the glass processor