User`s guide

Definition of Terms Specifications
Agilent 81600B Tunable Laser Source Family, Fourth Edition 47
Figure 16 Signal to source spontaneous emission ratio.
Conditions: Output power as specified. Other contitions as specified.
Measurement: Using an optical spectrum analyzer (OSA) at 0.5 nm resolution bandwidth
(to address the possibility of higher SSE within a narrower bandwidth),
then extrapolated to 1 nm bandwidth. For the low-SSE output, if applicable,
with a fiber Bragg grating inserted between the tunable laser source and
the OSA to suppress the signal, thereby enhancing the dynamic range of
the OSA.
Signal to total source spontaneous emission
ratio
The ratio of signal power to total spontaneous emission power within,
expressed in dB. The total spontaneous emission power is measured over
the specified “Wavelength range”.
Figure 17 Signal to total source spontaneous emission ratio.