A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the EXFO FOT-933 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   EXFO FOT-933 (FOT 933)   Description / Specification:    
EXFO FOT-933 MaxTester Multifunction Loss Tester

The EXFO FOT-933 MaxTester Multifunction Loss Tester allows for the testing of passive optical networks (PONs) at 1310 nm, 1490 nm and 1550 nm, the three wavelengths recommended by the ITU-T (G.983.3) for PONs. It is designed to help network service providers address CAPEX and OPEX issues, enable installers to easily adapt to all network types, and provide CATV operators with a single-unit solution to their backreflection, fiber-length, high-power and bidirectional loss measurement needs. Combined with its video fiber inspection probe, this unit also enables the easy detection of dirty or damaged connectors. Specifications. Detector type: InGaAs. Measurement range: 6 to -73 dBm. Range displayed: Down to -80 dBm. Uncertainty: ± 5 % ± 0.05 nW. Wavelength range: 800 to 1650 nm. Display resolution: 0.01 dB. Calibrated wavelengths: 40. Automatic offset nulling: Yes. Measurement-distance units: kilometers, meters, kilofeet, feet, miles. Source Wavelengths (Standard): 1310 ± 20, 1550 ± 20. Loss range: 60 dB. Source Options; 00 =Without second source, 12C = 850/1300 nm LED 50/125 µm, 12D = 850/1300 nm LED 62.5/125 µm.


Standard Calibration $295.00 *
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*This is a Web introductory price for one calibration of the EXFO FOT-933. 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

Please contact us for your EXFO FOT-933 CALIBRATION and/or EXFO FOT-933 MaxTester Multifunction Loss Tester REPAIR

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