Before field technicians align and fuse single-mode optical fibers, they must execute a precise preparation protocol to prevent signal attenuation. After stripping the outer polymer buffer from the fiber strands, technicians must clean the bare glass cores with high-purity isopropyl alcohol. Only after this chemical cleaning is completed may the fiber be positioned in the precision cleaver to produce a perpendicular end face. Following the cleave, the prepared fiber is immediately loaded into the fusion splicer's v-groove clamping blocks, just prior to running the automated pre-arc cleaning pulse.
According to the passage, which action must be completed immediately before the optical fiber is positioned in the precision cleaver?
- AStripping the outer polymer buffer from the fiber strands
- Cleaning the bare glass cores with high-purity isopropyl alcoholCevap
- CLoading the prepared fiber into the v-groove clamping blocks
- DRunning the automated pre-arc cleaning pulse
Cevap
Cleaning the bare glass cores with high-purity isopropyl alcohol must be completed immediately before placing the fiber in the precision cleaver.
The passage establishes a direct chronological link by stating that only after chemical cleaning with high-purity isopropyl alcohol is completed may the fiber be positioned in the precision cleaver. Therefore, cleaning the bare glass cores is the immediate precursor step.
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