N4391A Optical Modulation Analyzer

Main characteristics and technical indicators4x 33 GHz system bandwidth, 4 x 40 GHz optical receiver bandwidth1.8% rms EVM specifies typical system noise floor66 Gbaud symbol rateQPSK: 264 Gbit/s; QAM

No. : N4391A
Brand : Keysight

Main characteristics and technical indicators

4x 33 GHz system bandwidth, 4 x 40 GHz optical receiver bandwidth

1.8% rms EVM specifies typical system noise floor

66 Gbaud symbol rate

QPSK: 264 Gbit/s; QAM 16:512 Gbit/s

66 GHz analysis bandwidth

1528 nm to 1630 nm wavelength range

+/- 5 pm (typical) absolute wavelength accuracy

System bandwidths up to 4x 63 GHz are now available. For details, please contact Keysight


N4391A Best in Test Image

The N4391A is a complete high-end optical modulation analyzer for cutting-edge scientific applications in single- or multi-carrier 400 Gbit/s and 1Tbit/s complex modulation transmission systems. Based on the latest Z-Series Keysight oscilloscopes, 40 GHz dual-polarization coherent receivers, and optical modulation vector signal analysis software, it offers flexible analysis tools and intelligent settings to help you easily set up your instrument.


A complete solution with comprehensive calibration, allowing you to perform tests without any disadvantages

Provide a wider range of modulation formats

Designed based on the superior quality Z-Series 4-channel oscilloscope


Company Profile

Our Goals:

service every customer sincerely, focus on technology improvement, to do business with integrity and creditability

Our Objective:

with continuous innovation and improvement, strive to make RPG a leading "one-stop" service brand in Chinese instrument industry

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