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Keysight Used
  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
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  • No Customization
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Keysight N7786C


Polarization Synthesizer

Keysight N7786C Polarization Synthesizer
Keysight N7786C Polarization Synthesizer
Keysight N7786C Polarization Synthesizer
Keysight N7786C Polarization Synthesizer
Keysight N7786C Polarization Synthesizer
  • Keysight N7786C Polarization Synthesizer
  • Keysight N7786C Polarization Synthesizer
  • Keysight N7786C Polarization Synthesizer
  • Keysight N7786C Polarization Synthesizer
  • Keysight N7786C Polarization Synthesizer

From USD*$29,455.30 Save 30% List Price 42,079.00 USD*

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Keysight N7786C Polarization Synthesizer
Keysight Used
Keysight N7786C
Polarization Synthesizer
Configuration: 001, 022
Customization available
Shipping: Limited countries only
Warranty: 90 days
Accessories: Not included
Select condition
This will be taken into account for the value estimation of your unit.

KeysightCare Assured: Support. Elevated.
Add complete customer care to your order and get:
• 4-business-hour technical response
• Committed repair coverage
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Cannot ship to:

European Union

Unit only ships within China.

Unit ships worldwide.

Standard Keysight Used For professional and industrial use only
Condition Checked, working Calibrated units perform according to specification. Not calibrated units are operational tested/power up test.
DownloadsKeysight N7786C Data sheetKeysight N7786C User Manual
Support 90 days warrantyFor calibration & service plans contact us.5 years Keysight Care assured on eligible models The product may be End-of-Support
CalibrationTested or calibratedIf there is no certificate in the gallery above, the unit is tested but not calibrated.
AccessoriesNot includedFor help, please contact a Keysight expert
Shipping Limited countries only Check availability
Deal IDE175398624400

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This InstrumentThis Instrument
Keysight Premium UsedKeysight Used
Save up to 70%Save up to 90%
Like New ConditionWorking Condition²
Firmware UpdatedFirmware as Listed
Fully CalibratedCalibration as Listed
New AccessoriesAccessories as Listed
Like-New Warranty
1–5 Years¹
90 days warranty
Customization PossibleLimited Customization

Contact us to check availability of any service, calibration plans, or the possibility to software. New accessories may be able to be added for the United States only. 

  • Comprehensive polarization stabilization/control
  • Fast switching capability
  • Enables single-sweep spectral PDL measurements with photonic application software suite
  • 1240 nm to 1650 nm operating wavelength range
  • Robust, no moving optical part

The Keysight Technologies N7786C contains a high-speed lithium-niobate based polarization controller and a polarization analyzer that monitors the output signal and provides feedback to the controller. This unit can operate in several modes:

  • 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). The output SOP can be defined in the following ways:
    - When the set-and-forget switch in the user interface is activated, the current SOP is stored and maintained, even if polarization changes occur on the instrument input.
    - Defined Stokes: the target output SOP can be defined by the user using the Stokes parameters, which are then set using the polarization analyzer feedback,
    - Defined sequence: the device switches the SOP of the output signal in a chosen pattern with a cycling speed of up to 100 kSOPs/s.
  • 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, the N7786C 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: Up to 1 M samples can be taken with a sample rate of up to 1 M samples per second.
  • As fast-switching polarization controller for single-sweep wavelength dependent PDL measurements in combination with the photonics application software suite (PAS).

Many applications of the N7786C are supported by the built-in user interface. Programming uses a new SCPI command set and the instrument is addressed as a VISA resource.
The instrument comes in a compact form factor of just one rack unit height, with LAN and USB interfaces.

See downloads for more details
Installed Options
See downloads for more details
90 days warranty
Contact us or request a custom quote to check availability of service plans.
Tested or calibrated
Get up to 10% discount on calibration plans ordered with your used Keysight instrument.
Contact us or request a custom quote to check availability.
No accessories included
To order additional accessories, please contact us or request a custom quote
Get up to 10% discount on software ordered with your used Keysight instrument.
Contact us or request a custom quote to check availability.


What are the differences between Keysight Used & Keysight Premium Used?

You will find more information about the differences of Keysight's used equipment standards here.

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

For Keysight Used products, the accessories included are mentioned in each listing on the Keysight Store on eBay or the Keysight Alibaba store.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner.

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