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LMG1025-Q1EVM: LMG1025-Q1EVM

Part Number: LMG1025-Q1EVM

I am trying to pulse a laser diode at the 1-2 nanosecond pulse width. However, there is a long tail the lengthens the pulse to about 10ns. The rise time is 1ns but the tail drags it out to 10ns. What could be causing the tail to be so long? Do you have any recommendations to reduce the tail so the pulse width is within the 1-2ns range. The input pulse into the board is 65ns.

Thank you