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Ray tracing optical fiber
Posted Sep 21, 2016, 5:49 a.m. EDT 1 Reply
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Hi, I am supposed to create an optical fiber placed in air and do a ray tracing simulation of this. I have managed to create the fiber and the box filled with air, but when I am creating my rays using release grid I do not really understand how to define the initial coordinates to get my rays inside my optical fiber to then be traced in air when they get out. Maybe this is completely wrong but I am really new to COMSOL and really need to learn how to do this. I have gone through all the tutorials I could find but none of them actually uses a model of an optical fiber to trace their light through.
//Emily
//Emily
1 Reply Last Post Sep 21, 2016, 8:55 a.m. EDT
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Posted:
8 years ago
Hi Emily, this example should serve as a decent starting point:
www.comsol.com/model/transparent-light-pipe-22121
You can either download the model file and documentation from this link, or in COMSOL, go to File>Application Libraries>Ray Optics Module>Tutorials>light_pipe.
Rays will only escape from the fiber if total internal reflection does not occur, as is the case for some values of the pipe curvature in the example.
Dan
www.comsol.com/model/transparent-light-pipe-22121
You can either download the model file and documentation from this link, or in COMSOL, go to File>Application Libraries>Ray Optics Module>Tutorials>light_pipe.
Rays will only escape from the fiber if total internal reflection does not occur, as is the case for some values of the pipe curvature in the example.
Dan