Open AccessOptical regenerative NRZ to RZ format conversion based on cascaded lithium niobate modulators
Author(s) -
Xiaofan Zhao,
Caiyun Lou,
Hang Zhou,
Dan Lu,
Li Huo
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.023657
Subject(s) - lithium niobate , jitter , optics , multiplexing , computer science , signal (programming language) , pulse shaping , phase modulation , electronic engineering , optical modulator , materials science , phase noise , telecommunications , physics , laser , engineering , programming language
Optical regenerative nonreturn-to-zero (NRZ) to return-to-zero (RZ) format conversion using a lithium niobate phase modulator and a lithium niobate intensity modulator is proposed and demonstrated. The key advantage of the proposed format converter is that the converted RZ signal has a very small pulse width, which can be multiplexed to a higher bit rate using optical time division multiplexing technology. The operation can greatly reduce the timing jitter of the degraded NRZ signal due to the regenerative property of the proposed scheme. Besides, the format converter can also support multi-channel operation. An experiment is performed with the feasibility of the scheme demonstrated.