Optical Extinction Ratios

One of the many things you will work with during your mathematics career is the optical extinction ratio. Learn about the optical extinction ratio with help from a mathematics educator in this free video clip.

Part of the Video Series: Math Tips

Video Transcript

Hi I'm Jimmy Chang and we're here to talk about an optical extinction ratio. Now the optical extinction ratio is really dependent on noise and power and the ratio is actually a pretty straightforward ratio that looks like this. So the optical extinction ratio is denoted by r sub e and it's equal to P1/P0. Now what P1 is the level of optical power generated when the light source is on and P0 or if you want to say P Null that's fine too is the level of optical power generated when the light source is off. So it's really a ratio of 2 power levels depending on the power of the source itself. So I'm Jimmy Chang and that's a brief introduction as the optical extinction ratio.

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