The Newport 1936-R is a single-channel benchtop optical power meter delivering precise measurements of optical power and energy across demanding laboratory and industrial environments. This RoHS-compliant instrument combines high-speed sampling at 250 kHz with bandwidth up to 400 kHz, enabling direct characterization of modulated and pulsed light sources without auxiliary test equipment. The 1936-R measures average power from 1 µW to 20 kW, peak-to-peak power, frequency up to 250 kHz, and single-shot energy with thermopile detectors. True RMS capability ensures accuracy independent of waveform shape.
Technical Specifications
Measurement Range & Performance
• Power: 1 µW to 20 kW
• Frequency: 1 Hz to 250 kHz
• Sampling Rate: 250 kHz (user accessible to 10 kHz)
• Bandwidth: Up to 400 kHz depending on range
• Resolution: 0.0004% of range full scale
• Accuracy: ±0.2% (CW); ±1% (peak-to-peak, pulse-to-pulse, integration mode)
• Noise Level: Sub-picowatt with photodiode detectors
Measurement Modes
• Photodiode detectors: Average power (CW to 10 kHz), peak-to-peak power (to 20 kHz), frequency
• Thermopile detectors: Average power (to 1 kHz), single-shot energy
• Pyroelectric detectors: Pulse repetition up to 10 kHz
• True RMS measurements across all waveform types
– Key Features
• Hot-swappable detector architecture—no power cycling required
• Built-in or in-line detector EEPROM with NIST-traceable calibration data, auto-downloaded upon connection
• 5.7-inch graphical TFT LCD (¼ VGA) with 20 Hz refresh rate
• Multiple display modes: numeric, bar chart, min/max statistics, analog needle
• Measurement units: Watts, dBm, dB, Joules, Amperes, Volts (detector-dependent)
– Detector Compatibility & Integration
Compatible Detectors
• Photodiode: 818-xx/DB, 918D
• Thermopile: 818P, 919P
• Pyroelectric: 818E
• Integrating spheres: 819C, 819D
Input Specifications
• Photodiode detectors: Up to 25 mA
• Thermopile and pyroelectric detectors: Up to 130 V
