Page 199 - Fiber Bragg Gratings
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176 Chapter 4 Theory of Fiber Bragg Gratings
Figure 4.27: Normalized approximate resonance wavelength for phase-
matched radiation mode coupling for LPG.
Figure 4.28: The computed grating periods for coupling of the LP 01 core
mode to the of the first four LP 0n cladding modes in standard (Corning SMF)
fiber.
2
at the cladding surface to form leaky modes. The loss (to 1/e of the input)
by leakage at the boundary of the cladding and the oil is [57]
