ice:ice_quickstart_guide
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====Installing and Using the ICE Control GUI==== | ====Installing and Using the ICE Control GUI==== | ||
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The ICE Control GUI can be found on our Github page [[https:// | The ICE Control GUI can be found on our Github page [[https:// | ||
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The list of board slot numbers on the left hand side of the ICE Control GUI will illuminate, indicating which boards are installed. Boards can be selected from this list by clicking on the numbers to navigate to the control options for the corresponding ICE board. | The list of board slot numbers on the left hand side of the ICE Control GUI will illuminate, indicating which boards are installed. Boards can be selected from this list by clicking on the numbers to navigate to the control options for the corresponding ICE board. | ||
=====Locking a Laser to Spectroscopy===== | =====Locking a Laser to Spectroscopy===== | ||
- | After making all the necessary connections you will need to find spectroscopy. This can be done by enabling the laser through the ICE CS1 menu and setting the **Laser Current** to a value which gives the desired output (see <imgref step_1> | + | After making all the necessary connections you will need to find spectroscopy. This can be done by modifying |
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- | If using a D2-100 DBR laser purchased from Vescent, refer to the documentation which came with the laser to find the approximate **Stage 2** setpoint. Once the desired value is entered, click the **Servo: Off/On** button to engage the temperature servo. The **Temp(C)** field displays the measured temperature of the thermal plant, and **TError(mK)** displays the difference between **TSet(C)** and **Temp(C)** while the values are within the range of the monitor. **TError(mK)** is plotted in the graph below. | + | If using a D2-100 DBR laser purchased from Vescent, refer to the documentation which came with the laser to find the approximate **Stage 2** setpoint. Once the desired value is entered, click the **Servo: Off/On** button to engage the temperature servo. The **Temp(C)** field displays the measured temperature of the thermal plant, and **TError(mK)** displays the difference between **TSet(C)** and **Temp(C)** while the values are within the range of the monitor. **TError(mK)** is plotted in the graph below. |
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- | If your D2-100 documentation | + | It is now safe to enable |
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+ | If your D2-100 documentation is unavailable, | ||
Once spectroscopy has been found, align the feature you want to lock to with the center line on the GUI plots. You can do this either by changing the **Laser Current** supplied to the diode, or by shifting the **Center** dial in the **Ramp** box. Turning **Range** up and down will make your ramp amplitude larger or smaller and show you more or less of your spectroscopy. Whatever is lined up with the center line on the plots is the feature the ICE Box will try to lock to. If you want to lock to a peak, align the top graph with the peak you want, and note that the bottom graph' | Once spectroscopy has been found, align the feature you want to lock to with the center line on the GUI plots. You can do this either by changing the **Laser Current** supplied to the diode, or by shifting the **Center** dial in the **Ramp** box. Turning **Range** up and down will make your ramp amplitude larger or smaller and show you more or less of your spectroscopy. Whatever is lined up with the center line on the plots is the feature the ICE Box will try to lock to. If you want to lock to a peak, align the top graph with the peak you want, and note that the bottom graph' | ||
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- | <WRAP center round important 100%>The intuitive | + | <WRAP center round important 100%>While it may be intuitive to center right on the feature you wish to lock to, it is better |
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Finally, if you are only seeing the spectroscopy on the top graph of the CP1 GUI, and not the peak lock signal on the bottom graph, or if your peak lock signal appears to be small or weak, it is likely that your Phase and Dither settings are incorrect. Generally, it is best to optimize the Phase setting by adjusting the corresponding dial on the GUI, and then minimizing your Dither such that you are still able to reliably lock to the desired feature. The 4MHz frequency dither which is used to generate the peak lock signal is written onto the D2-100 being controlled by the ICE box, so the smaller the dither amplitude can be the better. | Finally, if you are only seeing the spectroscopy on the top graph of the CP1 GUI, and not the peak lock signal on the bottom graph, or if your peak lock signal appears to be small or weak, it is likely that your Phase and Dither settings are incorrect. Generally, it is best to optimize the Phase setting by adjusting the corresponding dial on the GUI, and then minimizing your Dither such that you are still able to reliably lock to the desired feature. The 4MHz frequency dither which is used to generate the peak lock signal is written onto the D2-100 being controlled by the ICE box, so the smaller the dither amplitude can be the better. | ||
- | <WRAP center round important 100%>If using the mouse to drag the position of the GUI dials for dither and phase, note that the corresponding values are not updated until the mouse is released. For this reason, it is recommended that the + and - buttons on the face of the dial are used when attempting to optimize phase and dither. | + | <WRAP center round important 100%>If using the mouse to drag the position of the GUI dials for dither and phase, note that the corresponding values are not updated until the mouse is released. For this reason, it' |
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ice/ice_quickstart_guide.1637708485.txt.gz · Last modified: 2021/11/23 23:01 by 127.0.0.1