- This topic has 9 replies, 3 voices, and was last updated 9 years, 5 months ago by Damian Marek.
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April 24, 2015 at 9:25 pm #20120musabtr1Participant
Dear all,
Would you please help me to show both of the model field ( Amplitude or intensity ) and waveguide geometry in the one graph for mode solver. I want to see the percentage of confinement for the beam inside the Waveguide.
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May 5, 2015 at 5:02 pm #20472Damian MarekParticipant
One possible way would be to export the fields and refractive index profile to a program like MATLAB. In the OptiMODE Analyzer application you can right click the modes and refractive index profiles for this option.
Regards
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May 8, 2015 at 1:17 am #20577Dr. MohammadMahdi AriannejadParticipant
is there anyway to do it straight ahead with BPM?
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May 8, 2015 at 3:04 pm #20631Damian MarekParticipant
Sure, you can use the Additional Output Data window in the Simulation tab to calculate confinement factor of the field with respect to the waveguide boundaries or fundamental mode.
Cheers
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May 10, 2015 at 8:13 am #20662Dr. MohammadMahdi AriannejadParticipant
would you please let me know more in detail? I totally confuse? which step I need to follow?
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May 12, 2015 at 2:08 pm #20742Damian MarekParticipant
This tutorial covers the basics of monitoring the power along a path. Note: This will result in performing the calculation along the path.
Let me know if that is clear enough!
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May 10, 2015 at 9:21 pm #20671musabtr1Participant
Damian Mark,
right now, I’m using mode solver. can I measure polarization and group index for my Design.
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May 12, 2015 at 2:17 pm #20743Damian MarekParticipant
Hi,
The mode solver will give the different components of the field as well as a description of the type of mode TE/TM or depending on the mode solver it might give the EH/HE fiber mode titles as well.
The mode solver solves for the mode index/effective index, whereas the group index is related to the group velocity. You can calculate it by running a sweep of the wavelength and finding it from the slope of the mode index.
Cheers!
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May 19, 2015 at 12:04 pm #20955musabtr1Participant
Thanks a lot Damian,
I am trying to solve a set of waveguide dimensions, is there any possible way to involve the polarization effect in the group index.
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May 19, 2015 at 1:35 pm #20965Damian MarekParticipant
Hi,
Yes the effective index will be given for different modes of the waveguide, the different polarizations I mentioned above. Two modes with different polarizations will probably have different effective indices (if the waveguide is asymmetrical) and then you can plot these as a function of wavelength and extract the different group indices from there.
Regards,
Damian
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