Which of the following lists the three fusion splicer technologies?

• A. Profile Alignment System (PAS), Local Inject and Detect (LID), and Fixed V-Groove
• B. Profile Alignment System (PAS) and Local Inject and Detect (LID)
• C. Fixed V-Groove only
• D. Local Inject and Detect (LID) only

Answer: (A)

The three fusion splicer technologies that work together to ensure precise alignment and a reliable splice are Profile Alignment System (PAS), Local Inject and Detect (LID), and Fixed V-Groove. PAS uses imaging to align the fiber cores before fusion, improving placement accuracy. LID handles the end-face alignment by locally injecting a signal and detecting it to trigger the arc at the right moment and confirm proper contact. Fixed V-Groove provides a rigid, pre-set groove that holds the fibers in exact positions during the splicing process. Since the question asks for the list that includes all three technologies, only the option naming PAS, LID, and Fixed V-Groove is correct. The other options omit one or more of these technologies, so they don’t cover the full set.