An SOI based polarization insensitive filter for all-optical clock recovery.
作者： Jinghui Zou , Yu Yu , Weili Yang , Zhao Wu , Mengyuan Ye
DOI: 10.1364/OE.22.006647
关键词:
摘要: We fabricate and demonstrate a compact polarization insensitive filter for all-optical clock recovery (CR) based on silicon-on-insulator (SOI), which consists of microring resonator (MRR) two modified two-dimensional (2D) grating couplers. The distributed Bragg reflectors (DBRs) are introduced to improve the coupling efficiency 2D coupler. MRR works as comb CR, while couplers serve diversity unit achieve operation. A subsequent semiconductor optical amplifier (SOA) performs amplitude equalization. Based this scheme, good signal with 970 fs timing jitter can be achieved at 44 Gb/s from input signals arbitrary states.
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