TECHNICAL
supporting both R&D validation and field acceptance testing with greater confidence. Can an OLTS be used to characterise hollow-core fibre?
Yes—within the right context. OLTS testing is particularly useful for:
n Continuity verification
n Confirming correct fibre routing
n Measuring total insertion loss and length on short links or cables without splices For field verification and installation checks, OLTS measurements using two MaxTester 945 units—configured as a light source and power meter—have been successfully used to confirm continuity, total loss, reflectivity and length on hollow- core fibre. Proven in the field, not just on paper Hollow-core fibre represents a fundamental shift in fibre technology—but testing it does not require guesswork or unproven assumptions. EXFO’s HCF testing solutions have been validated through real-world trials in collaboration with fibre manufacturers and leading hyperscalers, ensuring accuracy, scalability and operational relevance. By combining high-dynamic-range OTDRs, single-ended CD/PMD and delay characterisation, flexible OLTS verification, and high-speed BER and latency testing, EXFO delivers a complete, field-ready approach to hollow-core fibre testing— without unnecessary complexity. As HCF moves from innovation to deployment, EXFO remains committed to supporting every phase of its lifecycle with solutions that are proven, practical and trusted.
www.exfo.com
Volume 48 No.2 MAY 2026
99
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