N7753C Optical Return Loss Meter

The N7753C optical return loss meter measures the optical power into and reflected from the device under test and calculates the return loss. A power monitor and the guided user calibration eliminate the effects of dark current and parasitic backscatter for beter accuracy and wide dynamic range.

Power Sensor Modules - Optical Heads - Return Loss Modules

The Keysight Technologies, Inc. optical power measurement modules provide high performance functionality to the Keysight Lightwave Measurement platform.

Method of Implementation (MOI) for USB4 Transmitter & Receiver Return Loss

Method of Implementation (MOI) for USB4 TXRX Return Loss

PCI Express Transmitter & Receiver Return Loss Test MOI

PCIe Gen 4/Gen 5/Gen 6/Gen 7 transmitter and receiver return loss test using Keysight Vector Network Analyzer with Enhanced TDR App.

DisplayPort 2.1b Source & Sink Return Loss Test MOI

DP source and sink return loss test using Keysight Vector Network Analyzer with Enhanced TDR App

Measure Polarization Dependent Loss of Optical Components

Polarization Dependent Loss and Insertion Loss are important for optical components used in fiber-optic communication systems. Explore several approaches for testing!

E5080B Method of Implementation (MOI) for PCIe3.0 TX/RX Return Loss

E5080B MOI for PCIe3.0 TX/RX Hot TDR Compliance Test.

Photonic and Optical Test Catalog

Explore Keysight photonic and optical test solutions engineered for optical device characterization, wavelength measurement, coherent modulation analysis, and high‑speed optical communication testing. This catalog highlights benchtop and modular optical test instruments across multiple capability classes for research, manufacturing, calibration, and coherent system validation.

Eliminate FEC Frame Loss in 400GE Optical Links and Components

Learn how to design and validate FEC-aware 400G systems and components, as well as how to measure and debug FEC errors and unacceptable BER and FLR limits.

World Leading High-Accurate Measurement System for Radio Wave Absorption Rate and Return loss, 2.6GHz - 140GHz

solution brochure.

AE6980T Optical Automotive Ethernet Tx Compliance Test Software

The AE6980T provides the TDFOM measurement and a suite of TDFOM assisted optical measurement parameters based on TDFOM waveform quality penalties. For example, the TDFOM-OMA measurement is computed by taking the measured OMA and subtracting a penalty term derived from the TDFOM calculation.

The Return of Rowhammer

Mitigation tactics against Rowhammer attacks can be circumvented by malicious actors, leaving DDR4 chips vulnerable.

How to Test IEEE 802.3cz nGBASE-AU Optical Automotive Ethernet PHYs

This application note explains how to perform transmitter and receiver compliance testing for IEEE 802.3cz nGBASE-AU optical automotive Ethernet PHYs, covering standards background, optical test architectures, key parameters such as TDFOM, and automated compliance solutions using Keysight test systems.

Secure Non-Return Service

The Secure Non-Return service is intended for Keysight customers looking to maintain full control and protection of data stored on Keysight equipment.

Packet Loss Matters

Find our why zero packet loss matters with Keysight's visibility solutions.

Polarization Dependent Loss (PDL) Measurement

This app note discusses the polarization dependent loss (PDL) measurement process using the 8169A polarization controller.

Insertion Loss Admittance Tunnels

Solution brochure with MWI on Insertion Loss measurements using Keysight vector network analyzers.

Measuring Switching Losses

Learn more about power losses in switching device analysis for power supply testing. This video demonstrates power supply testing options on Keysight XR oscilloscopes.

Analysis of Multimode Insertion Loss Measurements

Learn to measure multimode insertion loss using Keysight Bare Fiber Connection Solutions for making reliable and accurate multimode insertion loss measurements.

Modern Implementations: NDF, True Return Ratio

Examine modern implementations of stability analysis. He introduces the concepts of NDF (Normalized Doppler Factor) and True Return Ratio (TRR), and explains how these metrics can be used to analyze the stability of high-frequency amplifiers.