d2:spectroscopy_module_212
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d2:spectroscopy_module_212 [2014/12/03 00:29] – [Inputs, Outputs, and Controls] Michael Radunsky | d2:spectroscopy_module_212 [2023/04/18 16:31] (current) – external edit 127.0.0.1 | ||
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=====Description===== | =====Description===== | ||
- | The D2-212 saturated absorption spectroscopy module provides error signals derived from saturated absorption spectroscopy of atomic rubidium, cesium, or potassium. It contains a vapor cell, internal temperature controller, | + | The D2-212 saturated absorption spectroscopy module provides error signals derived from saturated absorption spectroscopy of atomic rubidium, cesium, or potassium. It contains a vapor cell, internal temperature controller, |
+ | |||
+ | =====Purchase Includes===== | ||
+ | * D2-212 Spectroscopy Module | ||
+ | * VPN00463 SMA cable (6ft) | ||
===== Absolute Maximum Ratings ===== | ===== Absolute Maximum Ratings ===== | ||
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=====Inputs, | =====Inputs, | ||
- | < | + | < |
**Input Connector**** (****6-pin circular)** | **Input Connector**** (****6-pin circular)** | ||
- | Power from the D2-series power bus or other power supply are made through a 6-pin circular connector ([[http:// | + | Power from the D2-005 Power Supply, ICE-PB1 Power Buss, or other power supply are made through a Hirose |
- | <WRAP center round box 500px> | + | < |
- | ^ Pin ^ Input Voltage | + | |
- | | 1 | | + | <WRAP center round box 900px>< |
- | | 2 | | + | ^ |
- | | 3 | +5V Ground | + | | 1 |
- | | 4 | | + | | 2 | 8 | |
- | | 5 | -15 V | + | | 3 | 9 | +15 V | 100 mA |
- | | 6 | +15V | + | | 4 | 6 and 7 | |
+ | | 5 | ||
+ | | 6 | 1 and 2 | +5 V Ground | ||
+ | </ | ||
- | <wrap lo> | ||
- | </ | ||
**Signal Output (SMA)** | **Signal Output (SMA)** | ||
Line 96: | Line 102: | ||
< | < | ||
- | < | + | < |
The extent of the trim range can be determined by probing the location shown in <imgref trimpots2> | The extent of the trim range can be determined by probing the location shown in <imgref trimpots2> | ||
- | <WRAP center round box 300px> | + | <WRAP center round box 300px>< |
^ Alkali ^ Turns CW ^ Wiper Voltage | ^ Alkali ^ Turns CW ^ Wiper Voltage | ||
| cesium | 2 | 6.8V | ~30°C | | cesium | 2 | 6.8V | ~30°C | ||
| rubidium | 4-5 | 5.7V | ~40°C | | rubidium | 4-5 | 5.7V | ~40°C | ||
| potassium | 8-9 | 3.9V | ~60°C | | potassium | 8-9 | 3.9V | ~60°C | ||
- | </ | + | </ |
**Window Offset Adjustment** | **Window Offset Adjustment** | ||
Line 128: | Line 134: | ||
- View the output of the servo Error Input monitor on an oscilloscope in DC coupled mode. | - View the output of the servo Error Input monitor on an oscilloscope in DC coupled mode. | ||
- Turn on the laser and ensure it isn't on transition. We are going to ensure the photodetector in the D2-212 isn't saturated by checking its DC level on the oscilloscope. | - Turn on the laser and ensure it isn't on transition. We are going to ensure the photodetector in the D2-212 isn't saturated by checking its DC level on the oscilloscope. | ||
- | - Adjust the λ/2 waveplate on the front of the D2-212 to attenuate the input signal until the DC level on the scope of the Error Input monitor is below 3V. If the DC level is higher than this, the photodetector circuitry may saturated | + | - Adjust the λ/2 waveplate on the front of the D2-212 to attenuate the input signal until the DC level on the scope of the Error Input monitor is below 3V. If the DC level is higher than this, the photodetector circuitry may saturate |
- The module should now be set up for spectroscopy. | - The module should now be set up for spectroscopy. | ||
=====Troubleshooting===== | =====Troubleshooting===== | ||
- | ==== Rubidium | + | ==== Metal Atoms on Vapor Cell Windows ==== |
TBD | TBD | ||
==== Polarization Sensitivity==== | ==== Polarization Sensitivity==== |
d2/spectroscopy_module_212.1417566565.txt.gz · Last modified: 2021/08/26 14:26 (external edit)