EXFO

EXFO

EXFO is a Canadian test and measurement company founded in 1985 in Quebec City, specializing in fiber optic and network test solutions. EXFO develops instruments for characterizing, certifying, and troubleshooting optical fiber networks, Ethernet and IP networks, and mobile and wireless infrastructure. Their portfolio is widely used by telecommunications service providers, cable operators, and network equipment manufacturers worldwide.

EXFO's solutions span physical-layer fiber testing through high-layer protocol analysis, supporting network technologies including SONET/SDH, OTN, Ethernet (10G to 400G), CPRI, PON, and 5G. Their instruments are recognized for accuracy, portability, and integration into automated test workflows used in both field commissioning and laboratory environments.

Key Product Lines

• Optical Time Domain Reflectometers (OTDRs) — for fiber fault location, loss measurement, and link characterization
• Optical Power Meters — precision measurement of optical signal levels in fiber links
• Fiber Inspection Probes — automated end-face inspection and cleaning for fiber connectors
• Bit Error Rate Testers (BERT) — for protocol conformance and stress testing of high-speed data links
• Network Analyzers and Loopback Tools — for Ethernet and IP service activation and verification
• Return Loss Test Sets — for measuring optical reflectance in fiber installations

Industries Served

EXFO serves telecommunications carriers, internet service providers, cable TV operators, data center operators, and network equipment manufacturers. Their solutions are deployed in fiber-to-the-home (FTTH) rollouts, 5G fronthaul network commissioning, long-haul and submarine cable systems, enterprise campus networks, and R&D laboratories developing next-generation optical and wireless technologies.