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Making Measurements
Cleaning Connections for Accurate Measurements
Figure 2-4. Universal adapters to Diamond HMS-10.
The HMS-10 encases the fiber within a soft nickel silver (Cu/Ni/Zn)
center which is surrounded by a tough tungsten carbide casing, as
shown in Figure 2-5.
Figure 2-5. Cross-section of the Diamond HMS-10 connector.
The nickel silver allows an active centering process that permits the
glass fiber to be moved to the desired position. This process first
stakes the soft nickel silver to fix the fiber in a near-center location,
then uses a post-active staking to shift the fiber into the desired posi-
tion within 0.2 µm. This process, plus the keyed axis, allows very pre-
cise core-to-core alignments. This connector is found on most Agilent
Technologies lightwave instruments.