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Zach Notebook: Difference between revisions
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2.) Blue Photodiode 1 reads out a voltage that is 89% that of Blue Photodiode 2. This was determined by using a 50/50 (really 52/48 determined with power meter) non-polarizing beam splitter and comparing the outputted voltages. This difference could not be fixed by using the bias voltage or input current offset settings on the SRS570 amplifier.
3.) We bought some black poster board this week to block scattered light. It works very well
==Undated==
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