The beat length in a single mode optical fiber is 8 cm when light from – McqOptions

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1.	The beat length in a single mode optical fiber is 8 cm when light from a laser with a peak wavelength 0.6 m is launched into it. Estimate the modal birefringence.
A.	1 10<sup>-5</sup>
B.	3.5 10<sup>-5</sup>
C.	2 10<sup>-5</sup>
D.	4 10<sup>-5</sup>
Answer» B. 3.5 10<sup>-5</sup>

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