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 1935-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 1935-C (1935C)   Description / Specification:    
NEWPORT 1935-C Optical Power Meter

The Newport 1935-C Optical Power Meter is perfect for measurement of low/high-power or low/high energy of continuous or pulsed light sources. This unit can handle repetition-rates of up to 10 kHz at a sampling rate of 250 kHz. Pulse, peak-to-peak and DC source measurements can be displayed in units of W, dBm, dB, J, A, and V. Low-power measurements, of pW to several Watts can be accomplished with any one of the Newport 918D Series Silicon (Si), Germanium (Ge) or Indium Gallium Arsenide (InGaAs) Detectors, covering 190 to 2550 nm wavelengths. The 918D Series includes the model 918D-IG-C1 Detector with a built-in Peltier cooler, designed to work with models 1935T-C and 2935T-C Power/Energy Meters. The internal TE cooler drive electronics featured in these instruments replace an external benchtop driver, providing a more economical and space-saving solution. All 918D Series Detectors have a built-in temperature sensor utilized for sensing and actively compensating for temperature-induced measurement fluctuations. Energy measurements of pulsed laser sources, from 7 mJoule to 20 kJoules can be taken with these meters, using pyroelectric detectors. Pulse repetition rates from single shot to 10 kHz can be measured directly without having to rely on oscilloscope measurements. The Newport 818E Series (Energy Detectors) Pyroelectric Detectors, operating in the 0.19–20 mm wavelength range, are fully compatible with these instruments. True Root-Mean-Square (rms) measurements, providing the most accurate rms value regardless of the shape of the input waveform. Advanced features include user defined display colors, an internal 250,000 data point storage buffer, additional data storage using an external USB flash drive (memory stick), analog and digital filtering, programmable sample rates, moving statistics, plotting and multiple user-configuration storage. Features. Measurement rep-rates up to 10 kHz. True rms measurements. Power measurements, 1 pW – 20 kW. Pulsed and integrated energy measurements, 7 µJ to 20 kJ. Frequency measurement of pulses up to 250 kHz. Accelerated thermopile based power measurements with fast prediction algorithm. Data storage via internal memory or USB and RS-232 computer interfaces. Color plotting, statistics and on-board data post-processing. Analog and digital filtering. Trigger in/out control with alarm levels.


Standard Calibration $150.00 *
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*This is a Web introductory price for one calibration of the NEWPORT 1935-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.

Coherence Length
Average distance over which superimposed waves lose their phase relationships

Linewidth is the width of a spectral line in terms of wavelength, wave number and frequency.

Power Flatness Versus Wavelength
When changing the wavelength at constant power setting and recording the differences between actual and displayed power levels, the power flatness is ± half the span (in dB) between the maximum and the minimum of the measured power levels.

Spectral Width
Spectral Width is the wavelength interval over which the magnitude of all spectral components is equal to or greater than a specified fraction of the magnitude of the component having the maximum value. In optical communications applications, the usual method of specifying spectral width is the full width at half maximum. This is the same convention used in bandwidth, defined as the frequency range where power drops by less than half (at most -3 dB).

Telecom Bands
Optical fiber communications typically operate in a wavelength region corresponding to one of the following Bands. O Band (original): 1260–1360 nm. E Band (extended): 1360–1460 nm. S Band (short wavelengths): 1460–1530 nm. C Band (conventional): 1530–1565 nm. L Band (long wavelengths): 1565–1625 nm. U Band (ultralong wavelengths): 1625–1675 nm

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