Optical signal processing based on semiconductor optical amplifier and tunable delay interferometer

In this paper, several applications in all-optical signal processing based on a semiconductor optical amplifier (SOA) and variable delayed interferometers (DIs) have been experimentally demonstrated. Wavelength converter based on a nonlinear polarization switch (NPS) and a DI is proposed and present...

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Bibliographic Details
Published in:Frontiers of optoelectronics in China 2011-09, Vol.4 (3), p.308-314
Main Authors: Zhao, Xiaofan, Lou, Caiyun, Feng, Yanming
Format: Article
Language:English
Subjects:
Biomedical Engineering and Bioengineering
Electrical Engineering
Engineering
Physics
Research Article
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Summary:In this paper, several applications in all-optical signal processing based on a semiconductor optical amplifier (SOA) and variable delayed interferometers (DIs) have been experimentally demonstrated. Wavelength converter based on a nonlinear polarization switch (NPS) and a DI is proposed and presented for the wavelength conversion of nonreturn-to-zero (NRZ) signals. An all-optical nonreturn-to-zero to return-to-zero (NRZ-to-RZ) format converter with tunable duty cycles is achieved by the DI with variable delays. The 40 Gb/s reconfigurable optical OR/NOR gate in a single SOA, followed a tunable optical bandpass filter (OBF) and a DI, optical 2R regeneration using an SOA-DI are investigated. It is found that this combinative realization of filters has been endowed with great flexibility and quality for 40 Gb/s optical logic and 2R regeneration.
ISSN:1674-4128
1674-4594
DOI:10.1007/s12200-011-0143-z