Page 345 - Fiber Bragg Gratings
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322 Chapter 7 Chirped Fiber Bragg Gratings
Figure 7.6: The reflectivity of 4-mm-long, 1-nm chirp SC gratings with 50
(dashed line: N/L g = 12.5 steps/mm), 2 (gray line: N/L g = 0.5 steps/mm), or 3
sections (continuous line: N/L g = 0.75 steps/mm).
Figure 7.7: Theoretical delay of 4-mm-long, 1-nm chirp SC gratings with 50
(dashed line), 2 (grey line), and 3 (continuous line) sections. Notice that even with
so few sections as determined by the simple relationship of Equation (7.2.5), the
characteristics are very similar.
