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Vescent D2-210, Quick Start Manual

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Vescent D2-210 Quick Start Manual Download Page 12

Last update: 2019/06/25 22:53 d2:spectroscopy_module_210 https://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module_210

https://www.vescent.com/manuals/

Printed on 2019/08/21 02:55

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https://www.vescent.com/manuals/

 - Product Manuals

Permanent link:

https://www.vescent.com/manuals/doku.php?id=d2:spectroscopy_module_210

Last update: 2019/06/25 22:53

Summary of Contents for D2-210

Page 1: ...greater than 5 MHz for photocurrents of 50 μA and above The high bandwidth of the feedback enables tight solid locking that is immune to vibrations and shock The D2 210 is powered by a cable that plugs into the power connectors on any D2 series electronics module The D2 210 is a significant upgrade to the D2 110 incorporating many suggestions from our customers The module is magnetically shielded t...

Page 2: ...h signal 5 MHz Noise 5 MHz 80 nV Hz Set Temperature 25 to 65 C Temperature Stability 0 1 C Beam Height 0 95 inches Total package Size L x W x H 3 6 x 5 x 1 7 inches Tab 2 Powering the D2 210 The D2 210 requires 5 and 15 VDC and ground to operate The power input is via a female 6 pin Hirose connector HR10A 7TR 6SA 73 Depending on your order configuration you should have received a power cable with t...

Page 3: ...2019 08 21 02 55 3 12 Spectroscopy Module Product Manuals https www vescent com manuals Fig 1 Beam path and component map ...

Page 4: ...pler subtraction option or passed directly to the reference photodiode The remaining portion is passed through a fixed λ 2 waveplate and PBS to split off the pump beam from the probe beam The pump beam is directed to the Output Optics assembly where it is combined with the probe beam on a PBS in a counter propagating configuration The pump beam is dumped through the reflection port of the PBS that sep...

Page 5: ...bers are marked on the connectors are listed below figure 3 below may be useful Fig 3 Pin numbering on female Hirose 6 pin connector Hirose Pin DB 9 Pin if applicable Input Voltage Max Current Draw Notes 1 4 and 5 Signal Power Ground Return path for power rail 2 8 7 V to 15 V 100mA See note below 3 9 7 V to 15 V 100 mA See note below 4 6 and 7 5 V 1 5 A 2 5 A 2 5 A max with Doppler subtraction opti...

Page 6: ...ium 4 5 40 C potassium 8 9 60 C Tab 4 Temperature Loop Gain Adj In newer units there is a middle trimpot for adjusting the gain on the PID temperature loops Higher gain clockwise will result in faster temperature settling until oscillation occurs Temperature Bias Adj Note this adjustment is only available on older D2 210 models For the Doppler subtraction option this control enables the user to in...

Page 7: ...eplate attached to the front plate by magnets can be used to select the splitting fraction of the Tilt Plate PBS Fig 5 Half wave plate adjuster Quick Setup Guide Set the D2 210 in the beam path of the laser so that the beam goes through the center of the 1 input and output holes Loosely apply the four 1 4 20 mounting screws and washers to affix the ...

Page 8: ...he 4 mounting screws 10 In about 20 min a green LED should light visible through the port next to SMA connector 11 indicating the final temperature has been achieved If the spectroscopy does not look similar to the plots shipped with the device proceed to the 12 Alignment Procedure below Use the Balance Adjust control to set the lock point to ground 13 Aligning the Spectroscopy Module The spectrosc...

Page 9: ...t use a small twisting motion To adjust the beam up and down use your other hand to turn the knurled cylinder Place a viewing card in the path of the pump beam as shown Center the beam through the 2 passage Move the viewing card to the output port of the pump probe PBS as shown below Adjust the 1 beam so that it is centered on the output face of the PBS At this point the beams should be well align...

Page 10: ...e sure the saturation beam dump is well centered on the output PBS and then check the quality of the spectroscopy The 2 56 screws holding the input and output optics assemblies can also be loosened to shift the optics assemblies around to improve the spectroscopy Tighten the cone screw farthest from the alignment rod Then tighten the last cone screw The 3 order helps If the spectroscopy changes th...

Page 11: ...2019 08 21 02 55 11 12 Spectroscopy Module Product Manuals https www vescent com manuals Fig 7 Non Doppler subtracted side and peak lock spectra Fig 8 Doppler subtracted side and peak lock spectra ...

Page 12: ...t com manuals doku php id d2 spectroscopy_module_210 https www vescent com manuals Printed on 2019 08 21 02 55 From https www vescent com manuals Product Manuals Permanent link https www vescent com manuals doku php id d2 spectroscopy_module_210 Last update 2019 06 25 22 53 ...

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