Silas Chen

4 Questions 2 Answers 0 Followers

Questions related from Silas Chen

Can Fabry-Perot cavity improve stability of a external laser?

Assuming we have a laser which has some noises (amplitude fluctuation or phase jitter and so on), besides we have a very high Q value Fabry-Perot resonator, if we put the noisy laser output into...

26 May 2017 9,839 3 View

Does Photo Diode work on saturation regime at the moment of the incidence of a pulse peak?

As we know commercial silicon photo diode has a low saturation intensity or saturation power, say, 10mW/cm^2 or 1mW etc. So if when a light pulse illuminates on the PD, even though the average...

26 May 2017 5,475 1 View

How can we amplify ultrasound? Any suggestion?

Is it possible that there is a kind of amplifying mechanism, that just like EDFA to amplify 1550 nm optical light, to amplify ultrasound signal?

22 May 2017 8,944 3 View

Is there anyone who has experience in applying photo diode array to detect signals up to several hundred MHz? I can't find suitable commercial product

some single PD can have very fast speed up to GHz, but as for PD array which has a compact package, we didn't found products with corresponding speed. If there is someone has related information,...

22 May 2017 7,458 0 View