Naim Ahmed

4 Questions 6 Answers 0 Followers

Questions related from Naim Ahmed

What is the difference between loaded vs unloaded quality factor for optical microring resonator?

How to calculated the intrinsic or unloaded Q from the loaded Q or transmission spectrum? How can i convert loss coefficient ( cm-1) into dB?

18 April 2018 5,615 1 View

How to calculate the coupling coefficient parameters of a microring resonator?

Hello, I want to analytically calculate the coupling coefficient value of my micro-ring resonator. My ring size is known. I can also extract the FSR, FWHM value from my transmission spectrum. Is...

21 August 2017 3,412 4 View

How to get rid of residual photoresist after pattern developing from the waveguide channel?

I am trying to fabricate a ring structure using deep UV. But the problem is I couldn't resolve the ring as I have some photoresist left between the straight and ring waveguide after development. I...

22 June 2017 893 4 View

How to protect my Hard Mask (SiN) for creating V grooves on Silicon wafer?

Hi I am trying to fabricate V-grooves on Si(100) wafer. I develop SiN Hard mask using PECVD as a protective layer. But during my KOH etching (30% KOH with IPA at 80deg) my hard mask is completely...

20 April 2016 7,581 9 View