Santec MPM-211 4-Channel Power Meter Module

The Santec MPM-211 is a 4-channel optical power meter module engineered for simultaneous measurement of optical power across multiple channels in multichannel optical devices and components. This plug-in module integrates into Santec's MPM-210H and MPM-210 mainframes to deliver high-precision power monitoring with extremely low polarization-dependent sensitivity. The InGaAs sensor element provides accurate measurements across the infrared spectrum, ideal for telecommunications, sensing, and component characterization applications requiring parallel channel acquisition.

Technical Specifications

• Channel Count: 4 channels per module


• Wavelength Range: 1250 to 1680 nm


• Power Measurement Range: −80 to +10 dBm


• Measurement Dynamic Range (typical): > 30 dB


• High Dynamic Range (Logging Mode): Typically 50 dB per scan


• Data Logging Capacity: Up to 1 million sampling points per port; 2 memory buffers per port


• Averaging Time: > 50 μs (gain 1, 2, or 3); > 100 ms (auto range mode)


• Sensor Element: InGaAs


• Polarization-Dependent Sensitivity: Extremely low


• Connector Type: FC


• Operating Temperature: 23±5 °C


• Operating Humidity: < 80% non-condensing

Key Features

• High linearity across the measurement range


• Dual memory buffers per port enable continuous logging and data management


• Rapid averaging times support both fast transient capture and precision averaging modes


• Extreme insensitivity to polarization effects minimizes measurement uncertainty in real-world deployed fiber

Typical Applications

• Multichannel optical power monitoring in wavelength-division multiplexed (WDM) systems


• Insertion loss and power distribution testing


• Component characterization in production and R&D environments


• Parallel channel measurements in swept-wavelength test configurations

Compatibility & Integration The MPM-211 module mounts within Santec MPM-210H or MPM-210 mainframes. System-level interfaces

GPIB, TCP/IP, and RS-232C - are provided by the host mainframe. Integration with Santec TSL-Series tunable lasers enables full swept-wavelength test automation for IL and PDL measurement workflows.