App-1
IM AQ6376-01EN
Appendix
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App
Index
Appendix 1 GRID Table for WDM Wevelength
Some analytical functions refer to the GRID table for analysis(See the following table.)
The AQ6376 contains the nominal center frequencies specified by the ITU-T (International
Telecommunication Union-Telecommunication sector) G692 as the GRID table. It also
contains two tables: the standard GRID table created according to the pre-defined
wavelength (frequency) range and the custom GRID table that users can edit freely.
List of Analytical Functions with GRID Tables
Function
Item
Parameter Name Setting Parameter
WDM
DISPLAY SETTING
DISPLAY TYPE
DRIFT(GRID)
FILTER PEAK
CROSS TALK
ALGO
GRID
FILTER BOTTOM
CROSS TALK
ALGO
GRID
WDM FILTER PEAK
CAHNEL DETECTION/
ALGO
GRIF FIT
NOMINAL WAVELENGTH
GRID
WDM FILTER BOTTOM CAHNEL DETECTION/
ALGO
GRIF FIT
NOMINAL WAVELENGTH
GRID
Note
Concerning the units of wavelength axis for GRID tables, wavelength values and frequency
values can be changed by the setting of marker units.
The two GRID tables (standard and custom) have different parameter ranges, which are
shown in the following table.
Type
Parameter Range
Standard GRID Table
Start frequency
192.1000 THz(fixed)
Stop frequency
196.1000 THz(fixed)
Reference frequency
88.0000 to 200.0000 THz
Frequency spacing
To be selected from among
200 GHz/100 GHz/50 GHz/25 GHz/12.5GHz
Fixed GRID Table
Start frequency
176.3486 to 229.7924 THz
Stop frequency
176.3486 to 299.7924 THz
Reference frequency
88.0000 to 200.0000 THz
Frequency spacing
0.1 to 999.9 GHz
Standard GRID Table
This GRID table is created with pre-defined wavelength (frequency) ranges. It can be
created in the following manner by setting the reference wavelength (frequency) and
frequency spacing.
Custom GRID Table
Users can edit this GRID table freely. It is created automatically by setting the start/stop
wavelength (frequency), reference wavelength (frequency), and frequency spacing.
Users can add or delete an arbitrary channel to/from the created GRID table or edit
wavelength (frequency) values for each channel there.
Appendix