The Attenuator on/off switch can be automatically recognized by power meter models 1830-R, 1918-R, 1936-R, and 2936-R.Smallest calibration uncertainty specifications in market
Internal temperature sensor for thermal drift compensation
Integrated attenuator, selectable from 10X to 1000X
Attenuator on/off sensor
Free-space and fiber optic measurements
RoHS compliant
The RoHs compliant 918D Series Photodiode Sensors are calibrated photodiode sensors with advanced features to enhance performance.
The 918D Series include a full spectral response calibration utilizing NIST-traceable standardscalibrated with high-precision equipment maintained in Newport’s optical detector calibration facility. Tight calibration facility and process control allows the tightest calibration uncertainty in industry. Each detector is shipped with the calibration data, which is electronically stored inside the detector\'s EEPROM. A certificate of calibration as well as the actual calibration curves and data are shipped with each detector for attenuator and no attenuator modes. To maintain accuracy and guarantee performance Newport recommends annual photodiode detector calibration.
The Attenuator on/off switch can be automatically recognized by power meter models 1830-R, 1918-R, 1936-R, and 2936-R.
The 918D Series Photodiode Sensors are designed to outperform Newport\'s industry proven 818 Series Calibrated Photodiode Sensors, by enhancing their performance with advanced features. They feature integrated calibration data storage, built-in OD1, OD2 or OD3 attenuation filter with an electronic attenuator On/Off sensor, and sensing electronics for temperature drift compensation, making the detector more accurate in temperature changes.
Typical spectral responsivity of Newport\'s low power detectors
Exclusive OD3 attenuator technology extends the calibrated optical dynamic range of our detectors by three decades. Our attenuator design provides high damage threshold and spectral flatness. With the low NEP associated with the photodiodes Newport is using, a wider dynamic range is achieved. For less than 1 mW input power, we recommend to put the attenuator to OFF position (0.1 mW for 918D-UV-OD3R between 200 - 400 nm) to maximize the signal to noise ratio.
Plots of various photodiode characteristics
Newport uses the highest quality semiconductor detector materials available. Available sensor types are silicon (Si), UV-enhanced Si, Germanium, and Indium Gallium Arsenide (InGaAs). Choose 918D-UV-OD3R for 200 - 400 nm wavelength, but note that the maximum measurable power level in 400 - 1100 nm is as low as 50 mW with the attenuator on. Newport’s advanced in-house calibration facility performs the tightest calibrations in the business, further improving the absolute accuracy of our detectors.
1936-R and 2936-R
Benchtop Low Power Optical Meter
Optical Power Meter, High-Performance Hand-Held
Economical Handheld Laser Power Meter
Single Channel USB Optical Power Meter
Please refer to Newport Power Meter and Detector Legacy and Compatibility for a complete list of meters that are compatible with this model.
To directly mount the 918D head to an optical table consider the 918D-BASE-KITR . It has an optical axis height of 1.00 and is compatible with both Imperial and Metric table tops.
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| 918D-BASE-KITR | Base Mounting Kit for 918D Series | Contact Sales |
For a variety of accessories to enhance the detector functionality, see Photodiode Sensor Accessories.
