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An optical fiber with a step-index profile has a core with a diameter of 4 µm. The core and shell indexes are approximately equal (¹~¹₂), and the difference between them, An=n-₂, is such that An/n, = 2%. Find the minimum wavelength inside the core, ^=¹/¹, for which the fiber operates as a single mode.

An optical fiber with a step-index profile has a core with a diameter of 4 µm. The core and shell indexes are approximately equal (¹~¹₂), and the difference between them, An=n-₂, is such that An/n, = 2%. Find the minimum wavelength inside the core, ^=¹/¹, for which the fiber operates as a single mode.

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An optical fiber with a step-index profile has a core with a diameter of 4 µm. The core and shell indexes are approximately equal (¹¹₂), and the difference between them, An=n-₂, is such that An/n, 2%. Find the minimum wavelength inside the core, ^=/, for which the fiber operates as a single mode.
Transcribed Image Text:An optical fiber with a step-index profile has a core with a diameter of 4 µm. The core and shell indexes are approximately equal (¹¹₂), and the difference between them, An=n-₂, is such that An/n, 2%. Find the minimum wavelength inside the core, ^=/, for which the fiber operates as a single mode.
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