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| = GOAL of this month = . ''' to stabilize the arm displacement using the green beat note signal''' |
= GOALs of this month = . '''1. to stabilize the main PSL laser using the green beat note signal through the actuation on the MC length and use the X arm as a stable reference ''' . '''2. to measure the stability of the beat note and compared with the IR PDH signal ''' . '''3. to answer the question that the green locking is stable enough to hand off the servo to IR ''' |
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| || hook it up TRANS_MON to ADC|| {{{ c1iscex }}}||<:>attachment:red.png || || | || hook it up TRANS_MON to ADC|| {{{ c1iscex }}}||<:>attachment:green.png || || |
GOALs of this month
1. to stabilize the main PSL laser using the green beat note signal through the actuation on the MC length and use the X arm as a stable reference
2. to measure the stability of the beat note and compared with the IR PDH signal
3. to answer the question that the green locking is stable enough to hand off the servo to IR
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 |
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attachment:red.png |
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hook it up TRANS_MON to ADC |
c1iscex |
attachment:green.png |
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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 |
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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:green.png |
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lock the green to X arm |
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attachment:green.png |
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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:orange.png |
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alignment of optics at PSL table |
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attachment:green.png |
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temperature tuning of the lasers |
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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 |
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attachment:red.png |
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DAQ setting |
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attachment:red.png |
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feedback to ETMX |
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attachment:red.png |
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medm screen |
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attachment:red.png |
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