Example : An optical fiber has a birefringence of 106,=1.5 um. A circularly polarized light beam is launched in the fiber. Calculate the beat length. At what distance from the input point the beam will be linearly polarized? Will it become circularly polarized again?

Example : An optical fiber has a birefringence of 106,=1.5 um. A circularly polarized light beam is launched in the fiber. Calculate the beat length. At what distance from the input point the beam will be linearly polarized? Will it become circularly polarized again?

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Question

Example : An optical fiber has a birefringence of 10-6,2=1.5 um. A circularly polarized light
beam is launched in the fiber. Calculate the beat length. At what distance from the input point
the beam will be linearly polarized? Will it become circularly polarized again?

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