sorry to bother you again sir, but i am not getting how the particular pump upper frequency is set. please help if possible, i have gone through the tutorials, it has not been explained how the particular value is obtained, only the value is given directly.
This line has been given in the tutorial “The upper pump reference is set to 1500nm, after the amplifier is pumped at 1450 nm and the signals start from 1546 nm.”