Anritsu ML910B Optical Power Meter

The Anritsu ML910B is a dual-channel optical power meter engineered for precision measurement across fiber optic systems and components. Its two independent input channels enable simultaneous data display and inter-channel processing, delivering the functionality of two separate meters in a single unit. The instrument supports seven types of optical sensors with any two connected simultaneously, providing flexible configuration for diverse measurement scenarios. Wavelength-selectable operation from 0.38 to 1.8 µm enables direct absolute power readout. Relative measurement mode establishes reference values and displays power differences with 0.001 dB resolution, while feed-through sensor configuration cancels source fluctuations for stable optical loss characterization. Sensitivity reaches –90 dBm at 1.3 µm with ±5% accuracy at both 0.85 µm and 1.3 µm (–23 dBm reference). The meter stores up to 3,000 measured values on demand, simplifying field operations. Internal calibration circuitry and automatic zero-point offset adjustment ensure measurement reliability. GP-IB control enables external averaging integration, and PC connectivity supports automated measurement sequences. Display resolution spans 0.001 dB (relative), 0.01 dB (dBm), and 0.1–1% (Watts), with auxiliary bar-graph indication.

– Technical Specifications

• Wavelength range: 0.38 to 1.8 µm
• Sensitivity: –90 dBm at 1.3 µm
• Measurement resolution: 0.001 dB (relative/DIFF mode), 0.01 dB (dBm display), 0.1–1% (Watts display)
• Accuracy: ±5% at 0.85 µm and –23 dBm; ±5% at 1.3 µm and –23 dBm
• Data storage: 3,000 measured values
• Dual independent channels with simultaneous display
• Internal calibration circuit with automatic zero-point offset adjustment

– Key Features

• Two simultaneous input channels eliminate the need for dual-meter setups
• Seven compatible optical sensor types with dual-sensor connectivity
• Relative measurement mode (REL) with reference recall and full-range relative functions
• Feed-through sensor configuration for source-fluctuation cancellation in loss measurement
• Wavelength-direct readout for absolute optical power
• Inter-channel data processing capabilities

– Interfaces & Integration

• GP-IB control for external averaging command
• PC connectivity for automated measurement routines

– Typical Applications

• Optical network testing and maintenance
• Component optical loss characterization
• Dual-point power monitoring and comparison