User`s guide
Definition of Terms Specifications
Agilent 81600B Tunable Laser Source Family, Fourth Edition 49
Measurement: Using an optical powermeter and by performing repeated spectral loss 
measurement on a stable absorption peak from a reference component, 
then analyzing the variation of the determined (interpolated) wavelength of 
the peak.
Wavelength repeatability (stepped mode)
The random uncertainty in reproducing a wavelength after changing and 
re-setting the wavelength. The wavelength repeatability is ± half the span 
between the maximum and the minimum of all actual values of this 
wavelength.
Conditions: Uninterrupted tunable laser source output power, constant power level, 
constant temperature. Other conditions as specified.
Measurement: Using a wavelength meter, averaging time
≥ 1s.
Wavelength resolution
The smallest selectable wavelength increment or decrement.
The wavelength repeatability of the low-SSE output
(if applicable) is the same as the wavelength repeatability of the high 
power output (guaranteed by design).
The long-term wavelength repeatability can be obtained by taking 
the wavelength repeatability and wavelength stability into account.
NOTE
NOTE










