Faraday_isolator.svg
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Summary
Description Faraday isolator.svg |
English:
Faraday isolator allows the transmission of light in only one direction. It is made of three parts, an input polarizer, a Faraday rotator and an analyzer. The value of
magnetic field (B)
and
length (d)
for a give material of
Verdet constant
(
), is chosen in such a way that when the light passes through it along the direction of magnetic field, it will get 45° clockwise turn in polarization.The light going in the forward direction passes through input polarizer and gets 0° polarized and then it passes through Faraday rotator
along the direction of magnetic field (B)
and gets turned 45°
clockwise
along the direction of propagation because of Faraday effect and then it passes through analyzer (45° polarizer), thus light passes through in the forward direction. The light going in the backward direction passes through analyzer (45° polarizer) and gets 45° polarized and then it passes through Faraday rotator
opposite to the direction of magnetic field (B)
and gets turned 45°
anticlockwise
along the direction of propagation thus light gets 90° polarized which is blocked by input polarizer (0° polarizer), thus light does not comes through in the backward direction.
|
Date | |
Source | Own work |
Author | Vigneshdm1990 |
Making of the image
- Some part of this image is based on svg version of Image:Faraday-effect.png by User:DrBob
- This image is made using MS PowerPoint and converted into svg file using https://convertio.co/de/ppt-svg/
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