中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
All-optical latches using carrier reservoir semiconductor optical amplifiers

文献类型:期刊论文

AuthorA. Kotb; K. E. Zoiros and W. Li
SourceOptics and Laser Technology
Issued Date2023
Volume157Pages:9
ISSN0030-3992
DOI10.1016/j.optlastec.2022.108737
English AbstractLightwave communication systems, optical random memories, and photonic encryption/decryption are impor-tant applications that rely on all-optical latches. For the first time, the carrier reservoir semiconductor optical amplifiers (CR-SOAs) are employed to simulate two basic optical latches, Set-Reset (SR) latch, and D Flip-Flop, at a data rate of 120 Gb/s. All-optical NAND and NOT logic operations are used to build these latches, which are implemented using Mach-Zehnder interferometers (MZIs) with CR-SOAs. In the presence of the amplified spontaneous emission noise, the variation of the output quality factor (Q-factor) against the CR-SOA key oper-ating parameters is studied. This is achieved by exploiting and numerically solving a set of coupled partial differential equations that describe the CR-SOAs gain and phase dynamics when operated as nonlinear elements and embedded in MZIs. The results demonstrate that CR-SOAs-based MZIs can achieve a high Q-factor while implementing the logical SR latch and D Flip-Flop at a high speed of 120 Gb/s.
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Language英语