Extinction Ratio

The ratio of the power of a plane-polarized beam that is transmitted through a polarizer placed in its path with its polarizing axis parallel to the beam's plane, as compared with the transmitted power when the polarizer's axis is perpendicular to the beam's plane.

The extinction ratio is used to describe the Efficiency with which the transmitted Optical Power is modulated over the fiber-optic transport. It’s simply the relationship of the power used in transmitting a logic level “1” (P1) to the power used in transmitting a logic level “0” (P0). Extinction ratio can be defined as a linear ratio, P1/P0; as a power measurement, 10 * log(P1/P0); or as a percentage, (P0/P1) * 100. The convention adopted for logic levels is that Transmission of Light (laser on) represents a logic “1” and no light transmission (laser off) represents a logic “0.”

Sign up for the Timbercon newsletter:

[honeypot website]

By submitting this form, you are consenting to receive marketing emails from: Timbercon, 20245 SW 95th Avenue Tualatin, OR 97062 United States, https://www.timbercon.com/. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email.

This site uses cookies to enhance the user experience, and by browsing this site, you are accepting the receipt of cookies on your browser from this site. To manage use of cookies, please refer to your browser settings. Click here to learn more.