Power Flatness Versus Wavelength - Keysight 81940A User Manual

3 Specifications

Power flatness versus wavelength

38
Figure 10 Circular traces on the Poincaré sphere used to calculate polarization
extinction ratio
Specifies ± half the span (in dB) between the maximum and the minimum
actual power levels of the tunable laser source when changing the
wavelength.
Figure 11 Power flatness vs. wavelength
Cond itions:
Uninterrupted tunable laser source output power, constant power setting,
constant temperature.
Keysight 81940A, 44A, 49A, 80A & 89A Compact TLS Modules User's Guide