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Jared lab notebook: Difference between revisions
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Need two AWG outputs for evaporative cooling of both FORT lasers. For the FPGA, FORT on/of Channel 14, is a switch to the FORT 1 amplifier, and turns it on or off. The RF in to the amplifier is controlled by the AWG which is triggered from CHannel 10, FORT AWG. OFF means the AWG is triggered.
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--[[User:Jmiles2|Jmiles2]] ([[User talk:Jmiles2|talk]]) 14:25, 14 May 2014 (CDT)
For the AWG/hittite chip on FORT 1, 3db input on CW setting is equivalent to 33 to 33.2 dbm output power, 2 Watts, maybe a tad more. Since I'm not running this all the time, I think slightly more than 2 Watts should be fine. On pulse setting, 0 V input gives 11.5 dbm and -700 mV gives 32.8 dbm. A little over 20 dbm attenuation, that should work fine for what we're doing. The majority of attenuation happens from 0 to -200 mV.
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