Author Topic: Start Diodes - What is best?  (Read 179 times)

May 04, 2017, 09:46:01 AM

Matt Wilkinson

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Start Diodes - What is best?
« on: May 04, 2017, 09:46:01 AM »
Hi all

What start diode setups are stations currently using in their lasers to detect laser fires and trigger a timer start? I'll go and find the details of the Herstmonceux diode and post it here, but i know we use a rather cheap diode in to a threshold discriminator.  Is there anything better out there anyone could recommend? Are people satisfied with their start diodes?

When we moved to kHz SLR and lower energy pulses (from 20mJ to 1mJ), the threshold for a start had to be dropped considerably.  And so alignment is critical.  If it is not optimised we can get large RMS values in our calibrations.