Document #: GP-UM-PMD-1000-21
Page 17 of 122
When the PMDE key is pressed, the LCD displays 6 menu options on 3 screens:
Use the up and down arrow keys to move between menu options and the ENTER key (the
center key in the arrow keypad) to select the desired option.
1.
SET DISCRETE PMD:
Set a single PMD value (first and second order PMD combination) using the
lookup table. When this option is selected, the LCD displays the following screen.
Use the left and right arrow keys to move the cursor and the up and down arrow
keys to increment the digits to select the index number (ID#) corresponding to the
desired PMD value. There are 6561 PMD values (index numbers 0 to 6560).
PMD values are grouped in the following order: states with DGD only, states with
wavelength independent SOPMD, states with wavelength dependent SOPMD.
The PMD corresponding to the selected index is displayed in the bottom line of
the screen. The value on the left side is the DGD and the value on the right is the
SOPMD.
The PMD setting is changed in real time as the index is incremented.
To observe the effect of the generated PMD on the input signal, press the
MONITOR button. The display returns to the series of three screens showing,
respectively, the SOP and DOP observed by the input polarimeter (before the
PMD generation element), the SOP and DOP observed by the output polarimeter
(after the PMD generation element) and the output power level and current DGD
and SOPMD value. Use the up and down arrow buttons to move between the
monitor screens.
SET PMD ID#:
_ _ _ 0
0.00 ps
0.0 ps2
5. DGD-PMD EMULATION
↑
6. SCAN PMD-MEM BANK
3. SCAN DISCRETE PMD
↑
4. PMD TRACE SCAN
↓
1. SET DISCRETE PMD
↓
2. SET CONTINUOUS PMD
