Keysight (Agilent) N4391A REPAIR and Keysight (Agilent) N4391A CALIBRATION

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It is also available for immediate rental.
Custom-Cal has a high success rate in the repair of the Keysight (Agilent) N4391A. 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 (Agilent) N4391A 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 (Agilent) N4391A   Description / Specification:    
Keysight (Agilent) N4391A Optical Modulation Analyzer

The Keysight N4391A Optical Modulation Analyzer offers most sophisticated signal processing algorithms with highest flexibility. The analysis software is based on the industry standard Keysight Vector Signal Analysis (VSA) software with extensions for the optical requirements like dual polarization data processing. This analysis software is the work horse in RF and mobile engineering labs and offers all tools needed to analyze complex modulated (or vector modulated) optical signals. It provides a number of parameters that qualifies the signal integrity of your measured signal. The most common one is the normalized geometric error of the Error Vector Magnitude (EVM) of up to 4096 symbols.
Specifications.

Optical modulation analyzer.
Maximum detectable baud rate: Up to 62 Gbaud.
Sample rate: 4 x 80 Gs/s.
Number of polarization alignment algorithms: 6.

Digital demodulation uncertainty.
Error vector magnitude noise floor: 1.8 %rms.
Amplitude error: 1.1 %rms.
Phase error: 0.9°.
Quadrature error: 0.05°.
Gain imbalance between I and Q: < 0.007 dB.
Image suppression: > 35 dB.
S/N: > 60 dB.
Sensitivity: -20 dBm.

Optical DUT input.
Optical input wavelength range: 1528 nm to 1630 nm.
Maximum input power: +14 dBm.
Maximum input power, damage level: +20 dBm.
Receiver polarization extinction ratio: > 40 dB.
Average input power monitor accuracy: ± 0.5 dB.

Optical local oscillator output.
Optical CW output power: > +14 dBm.
Wavelength range: 1528 nm to 1630 nm.

External local oscillator input.
Optical input wavelength range: 1528 nm to 1630 nm.
External local oscillator input power range: 0 dBm to +14 dBm.
Maximum input peak power (damage level): +20 dBm.
Small signal gain, external laser input to local oscillator output (-20 dBm LO input power): 28 dB @ 1550 nm.
Saturation output power @ -3 dB compression: 15 dBm.

Data acquisition.
Sample rate: Up to 80 GSa/s on each channel.
Data acquisition bandwidth: 20/25/33 GHz upgradable.
Jitter between channels: typ 700 fs.
Noise: 0.6 mV rms @ 10 mV range, 32 GHz bw.
ADC resolution: 8 bit/16 bit (interpolated).
Sample memory per channel: Up to 2 Gs/channel.

Options.
-110, Optical modulation analyzer with 4 channel receiver and analysis software.
-210, Internal local oscillator.
-220, Internal local oscillator and external local oscillator input and local oscillator output.
-500, C band iTLA internal local oscillator.
-501, L band iTLA internal local oscillator.
-510, Fast tunable C & L band local oscillator.



 

Standard Calibration $1,825.00 *
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*This is a Web introductory price for one calibration of the Keysight (Agilent) N4391A. 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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