Roberto Braga

2 Questions 12 Answers 0 Followers

Questions related from Roberto Braga

Is the nonlinearity of a PZT applied to interferometry still a problem?

When we use a PZT to provide phase-shifting in interferometric applications we have to be aware of its nonlinearities. Today we have new PZTs, and I would like to know if we still face the...

24 April 2015 4,798 4 View

Do you believe that the mode hopping in the new diode lasers are still a limitation of stability?

We can see the use of diode lasers in dynamic laser speckle applications, however there is still a doubt concerned with its stability if compared to the HeNe lasers.

15 January 2015 3,785 8 View