User`s guide

Specifications Definition of Terms
36 Agilent 81600B Tunable Laser Source Family, Fourth Edition
General Definitions
Attenuation mode
An operation mode where the output power is adjusted using the built-in
attenator, rather than by changing the current of the laser diode.
Constant Temperature
Where required, is a stable operating temperature within ±1 K.
Logged wavelength
This is the wavelength measured and recorded by the internal wavelength
meter during a sweep at the corresponding trigger signal. This recorded
wavelength can be read with the logging function.
Stepped mode
In stepped mode the tunable laser source is operated statically, so that a
user's measurement is made at a fixed wavelength of the tunable laser
source. When tuning to a new wavelength, the static specifications are
valid after completion of the tuning operation.
Continuous sweep mode
In continuous sweep mode the tunable laser source is operated
dynamically, so that a user's measurement is made while the wavelength
of the tunable laser source changes in a defined way (given by start
wavelength, end wavelength and sweep speed). During a continuous
sweep the dynamic specifications and the “Logged wavelength” applies.
Applicable only to Tunable Laser Source modules that include a built-
in attenator.
NOTE
The logged wavelength positions during a sweep depend on
environmental conditions and may differ slightly between repeated
sweeps.
NOTE