Differences

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--- d2:quick_start_opls [2018/06/06 23:07] – [D2-135 Locking] Michael Radunsky
+++ d2:quick_start_opls [2018/12/10 16:09] – Michael Radunsky
@@ Line 25: / Line 25: @@
 === First Laser Alignment ===
-Use a power meter to measure the power out from the fiber connected to the D2-150. Block the laser that has two adjustments and measure the power from the laser with one adjustment that gets coupled into the fiber. Use the two adjustments on the beam splitter that affects the laser position to maximize the power into the fiber. If you cannot measure any light from the fiber, it is often helpful to put light into the fiber (opposite direction from how the system operates) and see how well that light gets back to the laser. Adjust the same beam splitter so the light is aimed directly at the laser source. This should get the alignment close enough to measure the power in the fiber to use for further optimization. Aim for 500 μW of power although a few hundred microwatts should be sufficient. <html><span style="color:red">The detector in the D2-160 or D2-135-FC can be damaged by more than 1 mW input power, so be careful not to couple in too much light.</span></html>
+Use a power meter to measure the power out from the fiber connected to the D2-150. Block the laser that has two adjustments and measure the power from the laser with one adjustment that gets coupled into the fiber. Use the two adjustments on the beam splitter that affects the laser position to maximize the power into the fiber. If you cannot measure any light from the fiber, it is often helpful to put light into the fiber (opposite direction from how the system operates) and see how well that light gets back to the laser. Adjust the same beam splitter so the light is aimed directly at the laser source. This should get the alignment close enough to measure the power in the fiber to use for further optimization. Aim for 500 μW of power although a few hundred microwatts should be sufficient. <color red>The detector in the D2-160 or D2-135-FC can be damaged by more than 1 mW input power, so be careful not to couple in too much light.</color>
 === Second Laser Alignment ===