KEYSIGHT N7786C CALIBRATION and KEYSIGHT N7786C REPAIR
 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the KEYSIGHT N7786C Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   KEYSIGHT N7786C   Description / Specification:    
KEYSIGHT N7786C 1240 to 1650 nm Polarization Synthesizer

The Keysight Technologies N7786C Polarization Synthesizer contains a high-speed lithium-niobate based polarization controller and a polarization analyzer that monitors the output signal and provides feedback to the controller. As a polarization stabilizer, it provides a stable output state of polarization (SOP) even with fluctuations and drifts of the input SOP. The stabilized output signal is guided in a standard single-mode fiber (SMF). As an SOP switch, the N7786C cycles through a sequence of SOPs at a chosen rate up to more than 40 kHz. The internal settings for the SOP sequence are first determined with the stabilizer function for rapid direct switching. SOP switching occurs within a few microseconds. An electrical trigger input can be used to synchronize the scrambler with external events. As a traditional scrambler, it varies the output SOP in a random way. Full coverage of the Poincaré Sphere can be achieved within a few milliseconds. As a polarization analyzer, the instrument provides truly high-speed capabilities: 1 M samples can be taken with a sample rate of up to 1 M samples per second, at up to 250 kHz analog bandwidth. It can also be used as a fast-switching polarization controller for single-sweep wavelength dependent PDL measurements in combination with the photonic application software suite (PAS).
Specifications.

Operating wavelength range: 1240 nm to 1650 nm.
Specification wavelength ranges:
  1270 - 1375 nm,
  1375 - 1490 nm,
  1490 - 1620 nm.
SOP cycling time (τ90): < 10 μs.
Remaining SOP error at input SOP movement rate of: Typical < 5.5° at 10 rad/s.
SOP settling time: Typical < 50 ms.
Feedback loop time: Nominal < 150 μs.
SOP measurement uncertainty: Typical 1.5°.
DOP measurement uncertainty: ± 2.0% Typical ± 1.5%.
Insertion loss including reference connectors: Typical < 5.0 dB.
Sensitivity of output power to changing the SOP, peak-peak: Typical < 1.0 dB.
Relative output power measure-ment uncertainty due to PDL: Typical ± 0.1 dB.
Relative output power measurement error due to other factors: Typical ± 0.15 dB.
Input power range: -38 dBm to +19 dBm.
Maximum safe input power: +20 dBm.



 

Standard Calibration $1,200.00 *
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*This is a Web introductory price for one calibration of the KEYSIGHT N7786C. 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
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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