Section 11 LabVIEW Measuring Instrument
11-16
MS9710A Appli ;DFB-LD Test
MS9710
DFB-LD
This driver measures DFB-LD and outputs the measurement result.
Input parameters:
ndB Width (dB) (no change) ...... Set a ndB width (1 to 50 dB).
When no value is input, the previous setting is used.
Side Mode (no change)............... Set a side mode (2nd Peak, Left, Right).
When no value is input, the previous setting is used.
Output parameters:
Result [cluster] ........................... The following cluster elements are output.
1. SMSR (dB) ........................... Side mode suppression ratio (If analysis is impossible, –999.99 is output.)
2. ndB Width (nm) ................... Width of spectrum at the level ndB lower than the peak
(If analysis is impossible, –1 is output.)
3. Peak Wavelength (nm) ......... Main peak wavelength (If analysis is impossible, –1 is output.)
4. Peak Level (dBm) ................ Main peak level (If analysis is impossible, –999.99 is output.)
5. Side Mode Peak Wavelength (nm)
.............................................. Side mode wavelength (If analysis is impossible, –1 is output.)
6. Side Mode Peak Level (dBm)
.............................................. Side move level (If analysis is impossible, –999.99 is output.)
7. Mode Offset (nm) ................. Mode offset (difference in wavelength between main peak and sidemode) (If
analysis is impossible, –1 is output.)
8. Stop Band (nm) .................... Stop band (interval between wavelengths of both side modes of main peak) (If
analysis is impossible, –1 is output.)
9. Center Offset (nm) ............... Center offset (difference between main peak wavelength and center wavelength
of both side modes) (If analysis is impossible, –999.99 is output.)
MS9710A Appli ;FP-LD Test
MS9710
FP-LD
This driver measures FP-LD and outputs the measurement result.
Input parameter:
Mode Cut Level (dB) (no change) Mode Cut Level (dB) (no change)
.............................................. Set a mode cut level (1 to 50 dB). When no value is input, the previous setting is used.
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