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tutorial model - step index fibre
Posted 26.01.2011, 07:49 GMT-5 RF & Microwave Engineering 3 Replies
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I am a beginner in comsol. could you please explain how the electric field pattern is being displayed even when we are not giving any input to the fibre.... is it just assuming a field..?
3 Replies Last Post 23.03.2017, 05:01 GMT-4
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Posted:
1 decade ago
Hi
I believe it's sufficient and correct to say that it is because you are doing a "modal analysis".
It's the same for a structural beam, fixed at one end end free elsewhere.
When you do an eigenfrequency analysis (or a mode analysis in optics) you get the eigenmodes, that are the "shapes" of the fields for stable modes (but not any correct useful amplitudes info, these are normalised)
--
Good luck
Ivar
I believe it's sufficient and correct to say that it is because you are doing a "modal analysis".
It's the same for a structural beam, fixed at one end end free elsewhere.
When you do an eigenfrequency analysis (or a mode analysis in optics) you get the eigenmodes, that are the "shapes" of the fields for stable modes (but not any correct useful amplitudes info, these are normalised)
--
Good luck
Ivar
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Posted:
1 decade ago
Dear Sir,
I am absolutely new to COMSOL. I would like to model the spatial
modes (and eventually the dispersion) of a simple step index optical
fiber (with classic core/cladding/jacket construction). How can I do this
using COMSOL please? My optical fiber consists of silica glass and
I have numerical values for the sizes of the core and cladding. Thanks
ever so much for your help!
Cheers,
-Ed
ediskander@hotmail.com
I am absolutely new to COMSOL. I would like to model the spatial
modes (and eventually the dispersion) of a simple step index optical
fiber (with classic core/cladding/jacket construction). How can I do this
using COMSOL please? My optical fiber consists of silica glass and
I have numerical values for the sizes of the core and cladding. Thanks
ever so much for your help!
Cheers,
-Ed
ediskander@hotmail.com
Please login with a confirmed email address before reporting spam
Posted:
8 years ago
Dear Ivar,
Which physics interface do you recommend for the study of effective index, dispersion, and confinement losses versus wavelength in a PCF? Besides, which component of E-field should it be solve for? Three components vector or in-plane vectors?
Which physics interface do you recommend for the study of effective index, dispersion, and confinement losses versus wavelength in a PCF? Besides, which component of E-field should it be solve for? Three components vector or in-plane vectors?