7-7
IM AQ6370D-01EN
Analysis
7
Explanation
SMSR
SMSR stands for side-mode suppression ratio.
SMSR represents the difference between the mode peak and the side-mode level. It is
one of the parameters used to evaluate the performance of DFB-LDs and the like.
SMSR
Side mode
Note
For details on SMSR analysis algorithms, see appendix 3, “Details of Analysis Functions.”
Results Display
The analysis results are displayed in the data area.
Analysis results
PK: Mode peak wavelength, level value
2nd PK: Side mode wavelength, level value
Analysis parameter setting value
MODE 1: Set the 2nd peak excluding the
MASK AREA as the side mode.
SMSR MASK: Mask setting range
7.3 SMSR Measurement
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