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LMG1025-Q1EVM: Unstable Output

Part Number: LMG1025-Q1EVM

Hi Team, 

Trying to use 10 kHz trigger signal, which consists of two successive pulses with 250 ns delay, to trigger LMG1025-Q1EVM. The trigger signal is shown in Figure 1. The two successive pulses have the same pulse width of 88 ns. However, the optical output of laser source for these two successive pulses is different, shown in Figure 2. The output pulse energy and the pulse width between these successive pulses are different. 

Also tried to reduce the trigger pulse width to 50 ns, but the two optical output are still different. Could you please help to solve this problem?



Thank you.