Integrated Parallel Spectral OCDMA En/Decoder

Abstract

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Integrated Mach–Zehnder-Based Spectral Amplitude OCDMA on a Passive Optical Network

“…In this layer, an 11-µm-wide fibermatched waveguide (FMW) is etched to efficiently couple to a standard single-mode fiber. The phase codes of the integrated tree are measured and show well resemblance with simulated behavior [14]. The integrated chip, and the simulated and measured fringe patterns (FSR =∼5 nm) are shown in Fig.…”

“…The number of phase codes (or cardinality) of the MZI can be increased by cascading another stage. A parallel spectral E/D (or tree) has been proposed, which is typically placed at the OLT in a PON [13], [14]. Its cost-efficient design uses only a single optical source to simultaneously generate or process a multitude of encoded optical spectra.…”