YASKAWA AQ6370B - Page 327

App-15
IM 735302-01E
Appendix
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App
Index
DFB-LD Analysis Function
The following parameters for DFB-LD light sources are analyzed collectively.
• -XdB WIDTH
• SMSR
Following table shows the details of parameters for DFB-LD analysis.
Parameter Abbreviation Default Value Setting Range Unit Description
-XdB
WIDTH
ALGO THRESH
ENVELOPE /
THRESH / RMS
/PK-RMS
-
THRESH 20.00 0.01 to 50.00 dB
THRESH2 20.00 0.01 to 50.00 dB
Valid only when ALGO is
ENVELOPE.
K 1.00 1.00 to 10.00 -
MODE FIT OFF ON / OFF -
Valid only when ALGO is
THRESH.
MODE DIFF 3.00 0.01 to 50.00 dB
SMSR
SMSR MODE SMSR1
SMSR1 /
SMSR2
-
SMSR MASK ±0.00 0.00 to 99.99 nm
MODE DIFF 3.00 0.01 to 50.00 dB
Concerning the algorithms for DFB-LD analysis, refer to data calculation algorithms for
spectrum widths and SMSR analysis algorithms.
Appendix 3 Details of Each Analytical Functions