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d2:quick_start [2015/09/29 22:54] Michael Radunskyd2:quick_start [2021/08/26 15:26] (current) – external edit 127.0.0.1
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 +====== Quick Setup Instructions ======
 <WRAP right round box 280px> <WRAP right round box 280px>
-[{{:d2:quick_start:d2_electronics_front.jpg?nolink&240||D2 Electronics (front view) }}]+[{{:d2:quick_start:three-in-a-row.jpg?240|D2 Electronics (front view)}}]
 </WRAP> </WRAP>
-====== Quick Setup Instructions ====== +Document Last Updated on ~~LASTMOD~~
 ===== Electronic Modules Initial Setup ===== ===== Electronic Modules Initial Setup =====
  
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 On the back of the modules, attach the two 9-pin D-sub cables across adjacent modules.  (If you have an older system, you will have plug block, not cables.) See pictures below.  Make sure the security key is in place on the Laser Controller.  When the key is in the vertical position (clockwise) it cannot be removed from the Laser Controller and is in the activated position.  You must either have the 50 Ω terminator in place on the Remote Interlock BNC input or have it wired to a door or other safety interlock in your lab. On the back of the modules, attach the two 9-pin D-sub cables across adjacent modules.  (If you have an older system, you will have plug block, not cables.) See pictures below.  Make sure the security key is in place on the Laser Controller.  When the key is in the vertical position (clockwise) it cannot be removed from the Laser Controller and is in the activated position.  You must either have the 50 Ω terminator in place on the Remote Interlock BNC input or have it wired to a door or other safety interlock in your lab.
  
-<WRAP left round box 250px+<WRAP left round box 290px
-[{{ :d2:quick_start:backside.jpg?200|D2 Electronics with new-style power distribution cables (back view)}}]</WRAP>+[{{ :d2:quick_start:backside.jpg?250|D2 Electronics with new-style power distribution cables (back view)}}]</WRAP>
 <WRAP left round box 250px> <WRAP left round box 250px>
 [{{:d2:quick_start:d2_electronics_back.jpg?200 |D2 Electronics with old-style power distribution blocks (back view) }}] [{{:d2:quick_start:d2_electronics_back.jpg?200 |D2 Electronics with old-style power distribution blocks (back view) }}]
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 Make sure the power switch on the System Power module is in the OFF (down) position. Plug power cable into back of System Power module.  Make sure the power switch on the System Power module is in the OFF (down) position. Plug power cable into back of System Power module. 
 ===== Optic Modules Initial Setup ===== ===== Optic Modules Initial Setup =====
-<WRAP right round box 420px+<WRAP right round box 300px
-[{{ {{:d2:quick_start:optic_table_setup.jpg?nolink&400|| Layout of Laser and D2-110 Spectroscopy Module on optics table }}]+[{{:d2:quick_start:100_210.jpg?250|D2-100 Laser and D2-210 Spectroscopy Module on optics table}}]
 </WRAP> </WRAP>
  
-Place the Laser Module on an optics table and bolt to table with 4 1/4-20 screws.+Place the Laser Module on an optics table and bolt to table with (41/4-20 screws.
  
-Align the Spectroscopy Module to the Laser Module, but if using a D2-110 place Spectroscopy Module at least 3” away from the DBR Module. The magnetically shielded D2-210 may be placed closer to the Laser Module.+Align the Spectroscopy Module to the Laser Module.  (If using a D2-110place Spectroscopy Module at least 3” away from the DBR Module.The magnetically shielded D2-210 may be placed closer to the Laser Module.
  
 To help with optical alignment, loosen the four screws that hold each module and gently register the modules by pushing against the screws in the same direction. (This is how they were aligned at Vescent.)  To help with optical alignment, loosen the four screws that hold each module and gently register the modules by pushing against the screws in the same direction. (This is how they were aligned at Vescent.) 
  
 ===== Cabling & Power ===== ===== Cabling & Power =====
 +<WRAP center round important 60%>Never connect or disconnect the D2-105 to/from a laser with the D2-105 energized.  Always power down the D2-105 completely before making connections to the laser.
  
-Locate the 6ft connector cable assembly. Plug the SMA connector into the LASER CURRENT OUTPUT plug and the Hirose connector into the LASER TEMP OUTPUT on the Laser Controller. Make sure that the nearby Laser switch is in the OFF/RESET position (down). While grounded, remove the SMA terminator connected to the Laser. Connect the other end of the SMA cable and Hirose connectors to the DBR module.+Never connect any device to the D2-005 power supply when it is switched on and supplying power.  Always turn off the power supply, make connections to the devices, and then re-energize the power supply. 
 +</WRAP> 
 + 
 +Locate the 6 ft connector cable assembly with SMA connectors on both ends. Plug the SMA connector into the LASER CURRENT OUTPUT plug and the Hirose connector into the LASER TEMP OUTPUT on the Laser Controller. Make sure that the nearby Laser switch is in the OFF/RESET position (down). While grounded, remove the SMA terminator connected to the Laser. Connect the other end of the SMA cable and Hirose connectors to the DBR module.
  
-<WRAP right round box 360px+<WRAP right round box 390px
-[{{ {{:d2:quick_start:full_setup_with_cables.jpg?nolink&340|| Full setup with cables. }}]+[{{:d2:quick_start:full_setup_with_cables.jpg?nolink&340||Full setup with cables.}}]
 </WRAP> </WRAP>
-Find the 6ft SMA BNC cable and Hirose connector cable assembly. Plug the BNC end into the ERROR INPUT on the Laser Servo. Plug the SMA end into the Spectroscopy Module. If you have the older D2-110 Spectroscopy Module, connect the Hirose connector on the Spectroscopy Module to the Temp Cntl Hirose on the D2-125-T.  If you have a D2-210, connect the Hirose connector on the Spectroscopy Module to a spare D-sub 9-pin power I/O on the back of the D2-005 or other D2 module.+Find the 6 ft cable assembly with an SMA on one end and a BNC connector on the other.  It will be bundled with a  cable that has a Hirose connector on at least one end.  If you have the D2-210, the other end of this cable will be a D-sub 9-pin connector.  If you have a D2-110, it will be a second Hirose connector. Plug the BNC end into the ERROR INPUT on the Laser Servo. Plug the SMA end into the Spectroscopy Module.  Connect the Hirose connector to the Spectroscopy Module.  If you have a D2-210, connect the other end of this cable to a spare D-sub 9-pin power I/O on the back of the D2-005 or other D2 module. If you have the older D2-110 Spectroscopy Module, connect the Hirose connector on the on the free end of the cable to the Temp Cntl Hirose on the D2-125-T.
  
-Take one short (~1ft) BNC cable and connect it from the CURRENT SERVO INTPUT on the Laser Controller to the SERVO OUTPUT on the Laser Servo. +Take one short (~1 ft) BNC cable (not included) and connect it from the CURRENT SERVO INTPUT on the Laser Controller to the SERVO OUTPUT on the Laser Servo. 
  
-For Peak-Lock Only: Connect one short (~1ft) BNC from the RF INPUT on the Laser Controller to the RF OUTPUT on the Laser Servo. +For Peak-Lock Only: Connect one short (~1 ft) BNC cable (not included) from the RF INPUT on the Laser Controller to the RF OUTPUT on the Laser Servo. 
  
-Flip the switch on the System Power Module to the ON position. Three LED's (+5V, +15V, -15V) on the System Power modules should glow blue. +Flip the switch on the System Power Module to the ON position. Three LED's (+5 V, +15 V, -15 V) on the System Power modules should glow blue. 
  
-Both the Laser Controller module and the Laser Servo module should have a blue LED glowing next to the label POWER. If not, check that the power cables are properly connected on the back.+Both the Laser Controller module and the Laser Servo module should have a blue LED glowing next to the label POWER. If not, check that the power cables, safety key, and interlock are properly connected on the back.
 ===== Laser Controller ===== ===== Laser Controller =====
  
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 ===== Laser Servo ===== ===== Laser Servo =====
-<WRAP right round box 460px+<WRAP right round box 490px
-[{{ {{:d2:quick_start:d1_sas.jpg?nolink&440|| 795 nm D1 Rubidium Spectroscopy}}]+[{{ {{:d2:quick_start:d1_sas.jpg?nolink&440|795 nm D1 Rubidium Spectroscopy}}]
 </WRAP> </WRAP>
  
-On the Laser Servo, place the LASER STATE switch into the RAMP position. Turn the RAMP AMP knob to max (clockwise). Connect a BNC cable from RAMP TTL on the **back** of the Laser Servo to the trigger input on your oscilloscope. Set trigger to //**positive**// slope. +On the Laser Servo, place the LASER STATE switch into the RAMP position. Turn the RAMP AMP knob to max (clockwise). Connect a BNC cable from RAMP TTL on the **back** of the Laser Servo to the trigger input on your oscilloscope. Set the trigger on the oscilloscope to //**positive**// slope. 
  
-You should see the apropriate hyperfine transitions on the ERROR IN monitor. Adjust the laser current to move the transitions to the left and right. You should see something similar to the figure on the right. +You should see the appropriate hyperfine transitions on the ERROR IN monitor. Adjust the laser current to move the transitions to the left and right. You should see something similar to the figure on the right. 
  
-If you don’t see the hyperfine transitions, don’t panic. More than likely the pickoff beams in the spectroscopy module need adjustment. Make sure all four screws are holding down the DBR and spectroscopy modules. Loosen the spectroscopy module screws and try making small adjustments while looking at the ERROR IN signal. You can also try scanning the laser current.+If you don’t see the hyperfine transitions, more than likely the pickoff beams in the spectroscopy module need adjustment. Make sure all four screws are holding down the DBR and spectroscopy modules. Loosen the spectroscopy module screws and try making small adjustments while looking at the ERROR IN signal. You can also try scanning the laser current.
  
-If you still cannot get spectroscopy, remove the screws to the top of the spectroscopy module and adjust the course steering mirror (see below).+If you have a D2-110 and you still cannot see spectroscopy, remove the screws to the top of the spectroscopy module and adjust the course steering mirror.  Likewise, with the D2-210, you can adjust input PBS.  (See below.)
  
- +<WRAP right round box 460px
-<WRAP right round box 360px+[{{ :d2:d2-210:d2-210_top.jpg?400|Inside the D2-210 Spectroscopy Module}}] 
-[{{ {{:d2:quick_start:d2_110_inside.jpg?nolink&340|| Inside of the D2-110 Spectroscopy Module }}]+[{{ :d2:d2-110:sas-inside-with-zoomin.png?400|Inside the D2-110}}]
 </WRAP> </WRAP>
-<WRAP right round box 220px> 
-[{{ {{:d2:quick_start:d2_110_zoom.jpg?nolink&200|| Zoom in on D2-110 Spectroscopy Module }}] 
  
-</WRAP> 
 If you still cannot get the right signal strength, see the full instructions on aligning the spectroscopy module in [[http://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module_210|D2-210 Saturated Absorption Spectroscopy Module manual]] or the [[http://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module|D2-110 manual]] whichever is appropriate. If you still cannot get the right signal strength, see the full instructions on aligning the spectroscopy module in [[http://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module_210|D2-210 Saturated Absorption Spectroscopy Module manual]] or the [[http://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module|D2-110 manual]] whichever is appropriate.
  
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 Connect a BNC cable from RAMP TTL on the **back** of the Laser Servo to the trigger input on your oscilloscope. Set trigger to //**positive**// slope. Connect a BNC cable from the DC ERROR to your oscilloscope. Connect a BNC cable from ERROR IN to your oscilloscope. Connect a BNC cable from RAMP TTL on the **back** of the Laser Servo to the trigger input on your oscilloscope. Set trigger to //**positive**// slope. Connect a BNC cable from the DC ERROR to your oscilloscope. Connect a BNC cable from ERROR IN to your oscilloscope.
  
-Adjust the Coarse and Fine Current controls on the Laser Controller to place a transition peak at the center of the oscilloscope screen. Reduce the ramp amplitude so you can clearly see the hyperfine transitions (adjust fine current as necessary). As you lower the ramp amplitude and bring it back, you will see the spectroscopy on the oscilloscope expand and contract about a single point on the oscilloscope. The point should be near the center of the oscilloscope. Adjust the horizontal position on the oscilloscope to put this point in the //**exact middle**// of the oscilloscope screen. If you move the spectroscopy so that a hyperfine peak is centered on the oscilloscope, it will be easier to see exactly where this point is. Now as you change the ramp amplitude, the value of the trace at the center of the oscilloscope should not change. Adjust the horizontal position again if necessary.+Adjust the Coarse and Fine Current controls on the Laser Controller to place a transition peak at the center of the oscilloscope screen. Reduce the ramp amplitude so you can clearly see the hyperfine transitions (adjust fine current as necessary). As you lower the ramp amplitude and bring it back, you will see the spectroscopy on the oscilloscope expand and contract about a single point on the oscilloscope. The point should be near the center of the oscilloscope. Adjust the horizontal position on the oscilloscope to put this point in the //**exact middle**// of the oscilloscope screen. If you move the spectroscopy so that a hyperfine peak is centered on the oscilloscope, it will be easier to see exactly where this point is.  The [[https://youtu.be/KtaLKASwC8Y|video located here]] may be useful in executing this step. Now as you change the ramp amplitude, the value of the trace at the center of the oscilloscope should not change. Adjust the horizontal position again if necessary.
  
 ==== Side Lock ==== ==== Side Lock ====
d2/quick_start.1443567295.txt.gz · Last modified: 2021/08/26 14:26 (external edit)