Analog photonics interview questions

The interview went fairly well overall. It was primarily technical, with a focus on whiteboard-style questions covering basic optical principles and diffraction concepts. The interviewer asked a few straightforward questions about geometric optics and light propagation, followed by some discussions on diffraction and interference. There were also a few questions related to fiber optics — such as mode propagation, numerical aperture, and coupling efficiency — to test conceptual understanding rather than deep derivations.

First round: Team leader called me for 30 min phone call, asking for a background check. Second round: The possible co-worker called me for 30min, asking for some specific skill set about their needs and my project experience.