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Phase Angle

Posted 2020/07/05 14:52 GMT-4 Wave Optics Version 5.4 1 Reply

Riddhi Mudaliar
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How can I calculate phase angle at the output ports for 2D model of 2x2 MMI coupler?

1 Reply Last Post 2020/07/06 23:44 GMT-4
Robert Koslover Certified Consultant
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Posted: 5 years ago 2020/07/06 23:44 GMT-4
Updated: 5 years ago 2020/07/06 23:45 GMT-4

I use the RF module and you asked about the wave optics module, but they are usually similar, so.... I use the arg function { arg (put field component here) } applied to the complex field. This gives you the argument (i.e., the phase in radians) of the complex field component in question. You can apply it at a single point or (if you set up a probe with an average over a line) you can apply it to a field average across a port, for better accuracy.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
I use the RF module and you asked about the wave optics module, but they are usually similar, so.... I use the arg function { arg (put field component here) } applied to the complex field. This gives you the argument (i.e., the phase in radians) of the complex field component in question. You can apply it at a single point or (if you set up a probe with an average over a line) you can apply it to a field average across a port, for better accuracy.

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