User`s guide

Specifications Definition of Terms
44 Agilent 81600B Tunable Laser Source Family, Fourth Edition
Power stability
Specifies the change of the power level of the tunable laser source over
time, expressed as ± half the span (in dB) between the highest and lowest
actual power.
Figure 13 Power stability.
Conditions: Time span as specified. Uninterrupted tunable laser source output power,
constant wavelength and power level settings, constant temperature.
Other conditions as specified.
Relative intensity noise (RIN)
Specifies the ratio between the mean-square of the optical power
fluctuation amplitude ∆P
f,B
within a specified frequency range f and for
bandwidth B, and the square of the average optical power P
avg
.
RIN, if expressed as "dB/Hz", is calculated by:
Conditions: As specified.
Measurement: Using an Agilent Lightwave signal analyzer and bandwidth set to 3 MHz.