LDC401 & LDC401A Automated Cleavers
Chapter 10: Accessories
Rev B, July 19, 2017
Page 47
Chapter 10 Accessories
These Cleavers comes in two basic unit configurations:
LDC401:
Produce flat cleaves in fiber with a cladding between Ø80 µm and Ø1.25 mm.
LDC401A:
Produce flat or angled cleaves in fiber with a cladding between Ø80 µm and Ø1.25 mm.
The following accessories are available separately for use with the Cleavers:
Fiber Holder Top Inserts
(Two Required)
Fiber Holder Bottom Inserts
(Two Required)
VHT1 Transfer Clamp
(Optional, Compatible with VHF Series of Bottom Inserts)
Graphite V-Grooves
(Required when Using Fibers
≥
Ø550 µm VHF Series of Bottom Inserts)
10.1. Fiber Holder Inserts
Fiber Holder Inserts, which are designed to hold various sized fibers within the Cleaver, must be purchased
separately. The Bottom Inserts have V-grooves to hold the fiber, while the Top Inserts each feature a recessed, flat
surface that clamps the fiber against the V-groove in the Bottom Insert. Each top and Bottom Insert is sold
individually, as the fiber diameter clamped by the left and right holding blocks may not be the same. Two Top Inserts
and two Bottom Inserts are required to operate the Cleaver. Available Inserts are described below, and the Insert
Selection Guide in Section 10.1 should be used to select the appropriate Inserts for each holding block.
Top Inserts
The table below summarizes the top Fiber Holder Inserts that are available from Thorlabs.
Item #
Side 1 Min/Max
Accepted Diameter
Side 2 Min/Max
Accepted Diameter
VHA00
57 µm / 759 µm
9
275 µm / 970 µm
VHA05
410 µm / 1008 µm
560 µm / 1269 µm
VHA10
812 µm / 1515 µm
1036 µm / 1770 µm
VHA15
1288 µm / 2022 µm
1534 µm / 2268 µm
VHA20
1772 µm / 2505 µm
2032 µm / 2944 µm
VHA25
2278 µm / 3029 µm
N/A
VHA30
2609 µm / 3198 µm
N/A
Bottom Inserts
Bottom Inserts are available in three varieties:
The VHD Series of Fiber Holder Inserts are single-sided, have holes for vacuum suction that aid in
positioning small fibers, and can accommodate fiber sizes up to Ø1.047 mm.
The VHF Series of Fiber Holder Transfer Inserts are designed to work with the VHT1 Transfer Clamps that
aid in moving the fiber between compatible Vytran stations while maintaining coarse alignment. They are
also single-sided and have holes for vacuum suction that aid in positioning small fibers.
The VHE Series of Fiber Holder Inserts are for fibers with claddings >Ø773 µm. They maybe single- or
dual-sided.
Typically, the Transfer Inserts are only be used in the left Fiber Holding Block, as the right Fiber Holding Block
usually clamps the side of the fiber that will be discarded. The right Fiber Holding Block of the LDC401 can accept
9
This side of the VHA00 is flat to provide additional clamping force for fibers with very small diameters.
Summary of Contents for Vytran LDC401
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