Keysight XP6-class optical polarization and dispersion instruments N7786C
Keysight XP6-class optical polarization and dispersion instruments N7786C
Overview
XP6-class Polarization Analyzer with polarization synthesizer. The Keysight N7786C is a high-speed lithium niobate based polarization controller with built-in polarimeter for monitoring and feedback to set and stabilize sequences of chosen output polarization states.
Applications
Monitoring and measurement of:
State of Polarization (SOP)
Stokes parameters
Degree of Polarization (DOP)
High-speed analysis of SOP/DOP of recirculating signal
Analysis of PM-fiber extinction ratio
Performance analysis of polarization scramblers
Intrusion detection
Key Features
High-speed operation up to 1 M samples/s
Memory for up to 1 M samples
Up to 250 kHz analog bandwidth
Compact size, one rack height unit
Robust, no moving optical parts
Highlights
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
Operation Modes
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:
Polarization Stabilizer
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:
Set-and-forget: When 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
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
SOP Switch
Cycles through a sequence of SOPs at a chosen rate up to more than 40 kHz. SOP switching occurs within a few microseconds. An electrical trigger input can be used to synchronize the scrambler with external events.
Traditional Scrambler
Varies the output SOP in a random way. Full coverage of the Poincare Sphere can be achieved within a few milliseconds.
Polarization Analyzer
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.
Fast-switching Polarization Controller
For single-sweep wavelength dependent PDL measurements in combination with the photonics application software suite (PAS).
Interfaces and Programming
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.
Options
Model Number
Description
N7786C-001
Polarization Synthesizer, 1240 nm to 1650 nm
81000HI
Connector interface E-2000 (physical contact)
81000KI
Connector interface SC
81000NI
Connector interface, connector type FC - narrow key way
81000SI
Connector interface DIN 47256/4108
81000LI
LC Connector interface for source modules
81000FI
Connector interface FC/PC/SPC
Product Images
Frequently Asked Questions
Q: What delivery methods do you use, and what is the delivery time?
A: We ship via EMS, DHL, FedEx, UPS, and TNT with tracking numbers. Delivery typically takes 4-7 business days.
Q: How are duties and taxes handled?
A: Duties and taxes vary by country and are usually the buyer's responsibility. Please check local import regulations for details.
Q: What are your payment terms?
A: We require 100% T/T payment before shipment.
Q: How can I ensure the quality of products purchased internationally?
A: We work with reputable suppliers and conduct thorough inspections before shipping. Warranties are available for most products—please check for specific terms.
Q: What should I do if my shipment is delayed?
A: Check the tracking information provided. If there are delays, contact us or the carrier directly for updates.
Q: Do you offer discounts for bulk orders?
A: Yes, discounts may be available for bulk purchases. Please contact us to discuss your specific requirements.
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