Keysight N777 C Series - Relative Wavelength Accuracy (Continuous Sweep Mode); Relative Wavelength Accuracy (Stepped Mode)

52 Keysight N777-C Series Tunable Laser Family User’s Guide
3 Definition of Terms
Conditions: As specified.
Measurement: Using a Lightwave signal analyzer and bandwidth set to 3 MHz.
Relative wavelength accuracy (continuous sweep mode)
When measuring the differences between the actual and Logged
wavelength in Continuous sweep mode, the dynamic wavelength accuracy
is ± half the span between the maximum and the minimum value of all
differences.
Figure 21 Relative wavelength accuracy (continuous sweep mode).
Conditions: As specified. No mode-hop.
Relative wavelength accuracy (stepped mode)
When randomly changing the wavelength and measuring the differences
between the displayed and the actual wavelength, the relative wavelength
accuracy is ± half the span between the maximum and the minimum value
of all differences.