X polarized and Y polarized light Vs TE and TM mode lights
Dear All,
Often we have seen that CW-laser’s light is fed into polarization splitter to get X polarized light and Y-polarized light. Do these X-polarized light is TE fundamental mode light and Y polarized light is TM fundamentla mode light, respectively? Or Is there any relation between dual polaration communication and TE and TM lights?
Thanking you.
Responses (3):
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Dear All,
Often we have seen that CW-laser’s light is fed into polarization splitter to get X polarized light and Y-polarized light. Do these X-polarized light is TE fundamental mode light and Y polarized light is TM fundamentla mode light, respectively? Or Is there any relation between dual polaration communication and TE and TM lights?
Thanking you. -
Hello Subhash,
the field of the light of a CW laser can be polarized (aligned) to a slow (X-polarization), a fast axis (Y-polarization) or a combination. The filed of the light in optical fiber (cylindrical shape) is an LP01, which is an HE11 mode. The SMF can’t support TE or TM modes.
I hope this clarify the issue.
Regards,
Ahmad -
Thank you sir for respond. I think, I could not convey my question properly.
I am trying to understand that whether x polarized light emitted from CW laser is actually a TE polarized light or not and similarly Y-polarized light is equal to TM polarized light or not as in case of rectangular waveguides (strip, rib or ridge) /devices designed to support TE and TM polarized light. I understand that circular structure of fiber supports LP modes which are hybrid in nature.
Is there any relation between X-polarized light with TE mode light? -
Hello,
the emitted field of the CW laser is electric only no magnetic field emitted. This filed can be aligned to the slow, fast or both axes.
Regards,
Ahmad
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