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Signal Questions

aluminumsink

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Jun 8, 2021
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I have a general idea as to how TTL and analog signals change the laser output. But I am curious as to how the voltage of theses methods impact the laser, I have seen different input requirements from drivers and wonder what it all means. Does it matter more for analog than for TTL? Any information you can offer is helpful, thanks.
 



WizardG

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May 9, 2011
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Your question indicates you do not have a general understanding of the difference between TTL and analog inputs. TTL is a digital signal; 1 or zero, high or low. It turns the laser on or off but doesn't dim it (except for PWM). Analog control allows for throttling of the laser, varying the power in direct proportion to the voltage applied.
 




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