Compare Model Drawings, CAD & Specs Availability Price
Optical Power Meter, Benchtop, Single Channel, Power and Energy, RoHS
Optical Power Meter, Benchtop, Dual Channel, Power and Energy, RoHS


  • Number of Channels
    1936-R: 1, 2936-R: 2
  • Bandwidth
    Up to 400 kHz, depending on Range
  • Measurement Rate
    Up to 10 kHz pulses for pyroelectric, Up to 20 kHz for photodiode (peak to peak measurement)
  • Compatible Detectors
    818-xx/DB, 918D (photodiode), 818P, 919P (thermopile), 818E (pyroelectric), 819C, 819D
  • Detector Input
    Up to 25 mA for photodiode, 130 V for thermopile and pyroelectric detectors
  • Sampling Rate
    250 kHz (10 kHz accessible by user)
  • Resolution
    0.0004% of Range Full Scale
  • Accuracy
    ±0.2 % for CW, ±1 % for Peak to Peak, Pulse to Pulse, and Integration Mode
  • Frequency Measurement Range
    1 Hz - 250 kHz
  • Gain Ranges
    8 ranges, 7 decades
  • Analog Output
    0-1 V, 0-2 V, 0-5 V or 0-10 V (user selectable output impedance)
  • Data Storage
    250,000 Point Internal Storage
  • Computer Interfaces
    USB and RS-232
  • Display Mode
    20 mm Numeric, Bar Chart, Min/Max Bar, Statistics, Analog Needle
  • Display Type
    5.7 in. Graphical TFT LCD, ¼ VGA
  • Display Refresh Rate
    20 Hz
  • Photodiode Measurement
    Average Power, Peak-to-Peak Power, Frequency
  • Thermopile Measurement
    Average Power, Single Shot Energy
  • Power Requirements
    90-240 VAC
  • Dimensions
    308 x 216 x 133 mm
  • Operating Temperature
    5 to 40°C, <70% RH
  • Storage Temperature
    -20°C to 60°C, <90% RH
  • CE
  • RoHS


Versatile Graphing Capabilities

The Analog Gauge display mode can be used for tuning adjustments. In the Graph screen mode the power meter acts as an oscilloscope. Users can see in real time the optical power level in their experiment.

Analog Gauge display

Highly Visible Color Display

The 5.7 inch, full color, graphical LED display provides excellent legibility from any angle, in any light condition. It enables both numerical and graphical measurement representation, with a choice of six different display colors. Measurements can also be displayed in formats including numeric, graphic, bar and strip charts.

Software suite including LabVIEW™ and C# samples

The application software, common for 1830-R series and the discontinued 1918-R optical power meter, gives users the flexibility of a command line environment as well as the ability to download collected data directly to a computer for analysis. Advanced programming toolkits such as LabVIEW™ and .Net C# samples will be installed automatically when installing the application software.  Basic USB communication setup programming samples are also provided in C++ and Visual Basic.

Software command line display

Advanced Measurement Capabilities

The 1936-R and 2936-R software gives users the flexibility of a command line environment as well as the ability to download collected data directly to a computer for analysis. True Root-Mean-Square (RMS) measurements, providing the most accurate RMS value regardless of the shape of the input waveform. Additional advanced features include an internal 250,000 data point storage buffer, additional data storage using an external USB flash drive, analog and digital filtering, programmable sample rates, moving statistics, plotting and multiple user-configuration storage.

Extreme Versatility from State-of-the-Art Electronics

For applications requiring measurement of low-power, high-power or energy of continuous or pulsed light sources, Newport’s 1936-R and 2936-R instruments have broken the barrier of temporal measurement performance with calibrated results. This series of power and energy meters have the ability to handle repetition-rates of up to 10 kHz at an unheard sampling rate of 250 kHz. This means that even reasonably high speed dynamical phenomena can be seen using the meter, eliminating a need for an oscilloscope in many cases.

Various Measurement Units

Pulse, peak-to-peak and DC source measurements can be displayed in units of W, dBm, dB, J, A, and V depending on the detector types used. It can handle peak-to-peak measurements of pulses with repetition-rates of up to 4 kHz at a sampling rate of 250 kHz.

Modulated or Pulsed Light Measurement

Newport’s high bandwidth design allows calibrated power measurements of highly fluctuated, modulated, or pulsed sources using photodiode detectors. Frequency measurements can be made in the 1 Hz up to 250 kHz range, using Newport’s Low Power 918D and 818 series photodiode detectors and 819C/D series integrating sphere detectors.

Calibration Report Included

Newport certifies calibration performed using standards traceable to the National Institute of Standards and Technology (NIST) and other recognized national standards laboratories. Included with your new instrument is a comprehensive calibration report. Newport also recommends recalibration every 12 months.

Additional Benefits

  • Color plotting, statistics and on-board data post-processing
  • USB and RS-232 computer interfaces
  • Analog bar graph with 10X zoom
  • Accelerated thermopile based power measurements with fast prediction algorithm
  • USB data transfer up to 11 Mbps
  • Sophisticated automation capabilities in testing and laboratory applications
  • True rms measurements

Ideal for Consumer Products Sector

Recent developments in the consumer products sector – including Lidar, motion recognition and facial recognition – employ high-speed, modulated lasers which require fast optical power meters for accurate and reliable characterization.  As the most advanced and versatile optical meters available, the 1936-R and 2936-R are the best choices for application success.