Recent content by kicklop

Well, now I see, that I didn't measure the rise time. I measured a fast sharp light pulse and it produced a less sharp one, exactly as you say. Thank you for the clarification. I used a too slow diode and that should be the reason, why the peak signals of continuous and pulse light pulses...

Thank you all for answering the original question. However, I still have a few follow-up comments and questions and I would be glad, if you helped me. Thanks for finding the missing piece. But in my defence, I measured the rise time of the photodiode before looking for the spec sheet, because...

Well, I cannot explain the fast switch, but next week I can look at the electrical circuit, if I read the parameters correctly. The photodiode was built by someone else. On the capacitor was written 100k x 40 V, which should mean, that the capacitance is 100 nF and maximum voltage is 40 V. Can...

In my opinion. If you make voltage signal that has the right maximum value and length of 10 ns, you should be able to open the Pockels cell for 10 ns. I have yet worked only with this Pockels cell and it was already set up. However I measured that the (FWHM) length of pulse cut out from...

Thank you for your response. I attached the spec sheet for the photodiode (APY 13 II) as well as electrical cicuit of the diode. Instead of voltmeter, there is an oscilloscope with 50 Ω termination. I have also measured the response time of the photodiode. Its rise time is 0.5 ns and the fall...

Hello, I have done an experiment with cutting out a pulse from continuous laser using Pockels cell. The setup is cw laser -> Pockels cell with crossed polariazers -> photodiode. The photodiode is connected in reverse bias, a capacitor is connected parallel to photodiode. If I put a half wave...

Hello, I am an undergrad student and I joined to ask a question I couldn't figure out on my own. Regards