| Summary: | 碩士 === 國立清華大學 === 通訊工程研究所 === 97 === In this thesis, we consider a class of constructions of fault-tolerant optical 2-to-1 first-in
first-out (FIFO) multiplexers that was studied in one of the authors’ previous work. Such
constructions use a feedback network consisting of an (M + 2) × (M + 2) optical crossbar
switch and M fiber delay lines with delays d1, d2, . . . , dM and can tolerate up to F broken
fibers, where d1, d2, . . . , dM satisfy the condition in (A2) in Chapter 1 and 0 <= F <= M − 1.
We show some properties of the fiber delays in an optimal (in the sense of maximizing the
buffer size) construction among this class of construction. We also obtain a closed-form
expression for the asymptotic construction efficiency of an optimal construction among this
class of construction.
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