81199A Datasheet, PDF (10/17 Pages) Keysight Technologies – Wideband Waveform Center

10 | Keysight | 81195A Optical Modulation Generator Software - Data Sheet
Phase Noise (#OSP)
Overview
The phase noise emulation tab allows artificial phase noise to be added to the waveform
thus emulating laser phase noise/jitter and/or a frequency offset by rotating a complex
IQ pair. The calculation of the phase noise pattern is based on a laser phase noise model
considering three contributions to the phase noise PSD. For details see paper: Narrow
Linewidth CW Laser Phase Noise Characterization Methods for Coherent Transmission
System Applications, S. Camatel, V. Ferrero, Journal of Lightwave Technology, Vol. 26,
No. 17, Sept. 2008.
Details
–  Static frequency offset
–– Range: –2.9 to +2.9 GHz
–  Pattern rotation
–– Generate random phase noise pattern (parameter: linewidth, flicker noise,
random walk noise)
–– Upload user-defined pattern (max. length 1024)
–– Pattern advanced rate: 7.6 kHz to 500 MHz at 64 GSa/s
Display
–  Noise spectrum
Example:
For an advanced rate of 500 MHz, a phase noise spectrum is generated covering
approximately three frequency decades ranging from 500 kHz to 250 MHz.