The EXFO MPI-800-NS331 is a portable multipath interference (MPI) meter for precise detection and quantification of signal distortion in optical networks. It integrates a DFB laser source, detector, and power meter into a single handheld unit—the only portable MPI measurement instrument available. The device measures amplified reflections that reach the receiver with significant delay, making it essential for characterizing high-speed coherent systems and networks employing distributed Raman amplification. Built for R&D, manufacturing, and field deployment, it delivers reliable performance across demanding environments.
Technical Specifications
• MPI Measurement Range: −55 dB to −20 dB
• MPI Accuracy: ±0.7 dB
• Light Source: DFB laser with adjustable output power from −11.5 dBm to 1 dBm
• Wavelengths: ITU-specified sources in C and L bands
• Operating Modes: Three distinct modes
• ASE Noise Detection: Capable of detecting Amplified Spontaneous Emission noise to prevent measurement misinterpretation
• Battery Life: Approximately 20 hours autonomy per charge
– Key Features
• Rugged, handheld construction with tough casing and rubber bumpers
• Splashproof and temperature-resistant design
• Combined MPI meter, power meter, and light source in one unit
• Compact form factor optimized for field and lab environments
• FCC Part 15 compliant
– Typical Applications
• Characterization of optical fibers and system components
• Qualification of high-speed coherent transmission systems
• Testing in networks with distributed Raman amplification
• In-service and acceptance testing of optical subsystems
• R&D validation of optical networks
– Compatibility & Integration
The MPI-800-NS331 integrates transmitter and receiver functionality, enabling comprehensive fiber and component characterization across various optical network architectures. Its all-in-one design eliminates the need for separate instruments, reducing field deployment complexity.
