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Size: 2870
Comment:
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Size: 2878
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 27: | Line 27: |
| || change beam axis ||steer the mirrors at X end ||<:>attachment:red.png || attachment:help.png || | || change beam axis ||steer the mirrors at X end ||<:>attachment:green.png || attachment:help.png || |
| Line 29: | Line 29: |
| || lock the green to X arm || ||<:>attachment:red.png || || | || lock the green to X arm || ||<:>attachment:green.png || || |
| Line 35: | Line 35: |
| || alignment of optics at PSL table || ||<:>attachment:red.png || || || temperature tuning of the lasers || ||<:>attachment:red.png || attachment:help.png || |
|| alignment of optics at PSL table || ||<:>attachment:green.png || || || temperature tuning of the lasers || ||<:>attachment:green.png || attachment:help.png || |
GOAL of this month
to stabilize the arm displacement using the green beat note signal
Action Items
Indicators |
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attachment:green.png complete |
attachment:orange.png intermediate state |
attachment:red.png nothing happened |
attachment:black.png gave up |
Step 1. X arm alignment for IR |
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action |
description |
status |
notes |
setup DC_PD at an available port |
to find a fringe |
attachment:green.png |
attachment:help.png put Thorlabs PDA255 at AS |
align BS, ITMX and ETMX |
to have TEM00 flash |
attachment:green.png |
put a camera at ETMX_TRANS |
place TRANS_MON_PD |
|
attachment:red.png |
|
hook it up TRANS_MON to ADC |
c1iscex |
attachment:red.png |
|
make a simple mod/demod system |
to lock the IR without c1lsc |
attachment:red.png |
attachment:help.png |
feeding back the signal to MCL(?) |
to lock the IR |
attachment:red.png |
attachment:help.png |
add a LOCKIN module into c1sus and c1iscex |
for A2L |
attachment:red.png |
|
A2L for IR |
for precise alignment |
attachment:red.png |
touch PZT1 and PZT2 ? |
Step 2. Re-alignment of green |
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action |
description |
status |
notes |
change beam axis |
steer the mirrors at X end |
attachment:green.png |
attachment:help.png |
rearrange the optical setup at X end |
if necessary |
attachment:red.png |
|
lock the green to X arm |
|
attachment:green.png |
|
overlap the green beam axis to the IR |
using A2L |
attachment:red.png |
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Step 3. Beat note detection |
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action |
description |
status |
notes |
finalize the setup at PSL table |
Electronics, cables and etc.,.. |
attachment:red.png |
|
alignment of optics at PSL table |
|
attachment:green.png |
|
temperature tuning of the lasers |
|
attachment:green.png |
attachment:help.png |
Step 4. Digital control to stabilize X arm |
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action |
description |
status |
notes |
connect VCO signal to ADC |
hook up it to c1ioo |
attachment:red.png |
attachment:help.png |
simulink model refinement |
|
attachment:red.png |
|
DAQ setting |
|
attachment:red.png |
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feedback to ETMX |
|
attachment:red.png |
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medm screen |
|
attachment:red.png |
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