The Newport 2936-R is a benchtop optical power meter for single-channel measurement of optical power and energy across CW, pulsed, and modulated light sources. RoHS compliant, it delivers sub-picowatt noise performance with photodiode detectors and supports three detector families—photodiode, thermopile, and pyroelectric—via hot-swappable connectors. The instrument handles pulse frequencies to 250 kHz and integrates true RMS measurement, programmable analog and digital filtering, and real-time statistical analysis on a 5.7-inch full-color TFT LCD.
– Technical Specifications
Measurement Modes
• Average Power (CW), Peak-to-Peak Power, Single Shot Energy (thermopile), frequency measurement up to 250 kHz
• Bandwidth: Up to 400 kHz (range dependent)
• Sampling rate: Up to 250 kHz; 10 kHz accessible to user
Measurement Rates
• Photodiode: 10 kHz CW, 20 kHz peak-to-peak
• Thermopile: Up to 1 kHz
• Pyroelectric: Up to 10 kHz pulses
Accuracy & Resolution
• CW: ±0.2%; Peak-to-peak/pulse-to-pulse/integration: ±1%
• Resolution: 0.0004% of range full scale
• Noise: Sub-picowatt level (photodiode)
Display
• 5.7-inch graphical TFT LCD, ¼ VGA, 20 Hz refresh
• Display modes: 20 mm numeric, bar chart, min/max bar, statistics, analog needle, analog gauge with 10× zoom
Signal Processing
• Five analog filters: 5 Hz, 1 kHz, 12.5 kHz, 250 kHz
• Five digital filter settings; true RMS measurement
– Key Features
• Hot-swappable detector interface—no power cycling required
• 250,000-point internal memory; USB flash drive support
• Data acquisition to on-board memory at up to 10 kHz
• Trigger-in and trigger-out for synchronized operation
• Programmable analog outputs: 0–1 V, 0–2 V, 0–5 V, or 0–10 V
– Compatibility & Integration
Detector Support
• Photodiode (818-xx/DB, 918D): Up to 25 mA input
• Thermopile (818P, 919P): Up to 130 V input
• Pyroelectric (818E): Up to 130 V input
• Integrating spheres (819C, 819D)
Interfaces
• USB (11 Mbps data transfer) and RS-232 for computer control
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