The Anritsu MW90010B is a coherent optical time domain reflectometer engineered for precision characterization and fault location in ultra-long submarine fiber optic cables. Using optical heterodyne detection, it delivers high sensitivity and 10 meter resolution across measurement ranges up to 20,000 km—ideal for intercontinental communication lines and networks employing optical amplifier repeaters. The instrument captures detailed waveform data including fault location, cable loss, bending loss, and fiber length.
## Technical Specifications
• **Measurement Range:** Up to 12,000 km standard; up to 20,000 km with MW90010B-003 option
• **Measurement Resolution:** 10 meters
• **Wavelength Tunability:** 1527.60 nm to 1567.13 nm (C-band), selectable in 50 GHz steps
• **Wavelength Accuracy:** ±0.05 nm (20°C to 30°C)
• **Dynamic Range:** ≥18 dB (typical)
• **Dead Zone:** 0.5 km
• **Pulse Width:** 3, 10, 30, 60, 100 µs options
• **Optical Output Power:** 0 to +13 dBm (0.5 dB steps)
• **Repeater Support:** Optical amplifier repeaters ≥80 km separation
• **Fiber Type:** ITU-T G.653 (DSF)
## Key Features
• Built-in tunable light source across full C-band enables DWDM submarine cable measurement without external equipment
• 8.4-inch XGA touchscreen (1024 × 768) with rotary knob and keypad interface
• Real-time measurement, zoom/shift, and 2-point loss analysis functions
• Remote operation via wired Ethernet and Windows Desktop integration
• NETWORKS emulation software (v4.1+) compatibility for post-measurement waveform analysis on Windows PC
• PDF report generation for measurement documentation
• Portable design: <10 kg weight, compact form factor for landing stations and cable vessels
## Typical Applications
• Submarine cable characterization and fault diagnosis
• DWDM cable validation and wavelength-specific measurements
• Long-haul repeater-amplified fiber networks
• On-site testing at cable terminals and maintenance facilities
## Compatibility & Integration
• Operates on ITU-T G.653 dispersion-shifted fiber
• Integrates with Windows-based NETWORKS software for advanced data analysis
• Ethernet connectivity for remote monitoring and control
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