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Definition of Terms
Agilent 81950A Compact TLS module, First Edition
Power flatness versus wavelength
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 7 Power flatness vs. wavelength.
Conditions:
Uninterrupted tunable laser source output power, constant power setting,
constant temperature.
Power repeatability
The uncertainty in reproducing the power level after changing and re-
setting the power level. The power repeatability is ± half the span between
the highest and lowest actual power (in dBm).
Conditions:
Uninterrupted tunable laser source output power, constant wavelength
setting, constant temperature.
The long-term power repeatability can be obtained by taking the power
N O T E
repeatability and power stability into account.
Specifications
81
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