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Revision 13 as of 2011-01-06 20:58:49
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|| align BS, ITMX and ETMX || ||<:>attachment:green.png || put a camera at ETMX_TRANS || || align BS, ITMX and ETMX ||to have TEM00 flash ||<:>attachment:green.png || put a camera at ETMX_TRANS ||

Plan for January

GOAL of this month

  • to stabilize the arm displacement using the green beat note

BR

Action Items

Indicators

attachment:green.png complete

attachment:orange.png intermediate state

attachment:red.png nothing happened

attachment:black.png gave up

BR BR

Step 1. X arm alignment for IR

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

action

description

status

notes

change beam axis

steer the mirrors at X end

attachment:red.png

attachment:help.png

rearrange the optical setup at X end

if necessary

attachment:red.png

lock the green to X arm

attachment:red.png

overlap the green beam axis to the IR

using A2L

attachment:red.png

Step 3. Beat note detection

action

description

status

notes

finalize the setup at PSL table

Electronics, cables and etc.,..

attachment:red.png

alignment of optics at PSL table

attachment:red.png

temperature tuning of the lasers

attachment:red.png

attachment:help.png

Step 4. Digital control to stabilize X arm

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

feedback to ETMX

attachment:red.png

medm screen

attachment:red.png

Advanced_Techniques/Green_Locking/January_2011 (last edited 2012-01-03 23:02:44 by localhost)