The NEWPORT 1835-C is currently in stock and available for purchase on our  Sales Page
It is also available for immediate rental.
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the NEWPORT 1835-C Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   NEWPORT 1835-C (1835C)   Description / Specification:    
NEWPORT 1835-C Single Channel High-Performance Optical Meter

The Newport 1835-C Single-Channel High-Performance Optical Meter is compatible with Newport’s low-power 818-series, highpower 818P-series and energy 818E-series detectors, allowing both free-space and fiber pigtailed measurements in the 190–1800 nm range. When using one of these detectors with the 1835-C, a calibration module needs to be attached to the detector, assuring the correct reading at any selected wavelength. DC, peak-to-peak and pulse measurements can be displayed in units of W, dBm, dB, J, Ergs, A, and V. Low-power measurements, in the 100 fW–2 W range, can be accomplished with any one of Newport’s 818 Series silicon, germanium or indium gallium arsenide semiconductor detectors, covering 190–1800 nm wavelengths. High-power measurements, in the 20 mW–300 W range, can be performed with Newport’s 818P and 818T Series thermopile detectors, enabling measurements in the 0.19–11 µm wavelength range. Energy measurements of pulsed laser sources, from 50 mJ–1 J, can be taken with Newport’s 818E and 818J Series family of pyroelectric detectors, operating in the 0.19–20 µm wavelength range. Pulse repetition rates from single shot to 2 kHz can be accommodated. Advanced features include a 2500 data point storage buffer; analog and digital filtering; programmable sample rates; moving statistics; and up to 10 recallable configurations. Specifications. Display Type: 6-digit vacuum fluorescent. Sampling Resolution: 20,000 count <=25 Hz, 4096 count <=1 kHz. Gain Ranges: 7 decades. Current Sensitivity (full-scale): 2.5 nA to 2.5 mA. Voltage Sensitivity (full-scale): 790 µV to 25 V. Resolution: 100 fA, 125 nV. Sampling Rate: Up to 1 kHz single-channel, Up to 500 Hz dual-channel. Bandwidth (-3 dB): DC to 1 MHz(1). Analog Output: 0 to 2.5 V into 50 ohms. DC Accuracy: < ±0.1% typical. Peak-to-Peak Accuracy: ±1% typical. Pulse-to-Pulse Accuracy: ±1% typical. Integration Accuracy: ±1% typical.


Standard Calibration $150.00 *
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*This is a Web introductory price for one calibration of the NEWPORT 1835-C. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.

Related Optical Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Absolute Wavelength Accuracy
Absolute Wavelength Accuracy is the maximum difference between the actual wavelength and the displayed wavelength of the Optical Source. Wavelength is defined as wavelength in vacuum.

Decibel (dB)
A unit of measurement of optical power which indicates relative power. A -10 dB means a reduction in power by 10 times, -20 dB means another 10 times or 100 times overall, -30 means another 10 times or 1000 times overall and so on.

Nanometer (nm)
A unit of measure used to measure wavelength of light, meaning one one-billionth of a meter

Relative Intensity Noise (RIN)
Relative intensity noise (RIN), describes the instability in the power level of a laser. The noise term is important to describe lasers used in fiber-optic communication and LIDAR remote sensing. It is the square of the (spectrally resolved) RMS optical power amplitude divided by the measurement bandwidth and the square of the average optical power, expressed in dB/Hz.

Total Return loss
In an optical fiber, the loss that takes place at any discontinuity of refractive index, especially at an air-glass interface such as a fiber endface, at which a fraction of the optical signal is reflected back toward the source. RL = - 10log10 (Preflected/Preference)

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