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Appl. Sci. 2017, 7(10), 1033; doi:10.3390/app7101033

Fast Reconfigurable SOA-Based Wavelength Conversion of Advanced Modulation Format Data

1
School of Electronic Engineering, Dublin City University, Dublin 9, Ireland
2
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430073, China
This paper is an extended version of paper published in the The Optical Fiber Communication Conference and Exhibition, OFC 2017 held in Los Angeles, 19–23 March 2017.
*
Author to whom correspondence should be addressed.
Received: 31 August 2017 / Revised: 28 September 2017 / Accepted: 3 October 2017 / Published: 10 October 2017
(This article belongs to the Special Issue Applications of Semiconductor Optical Amplifiers)
View Full-Text   |   Download PDF [2765 KB, uploaded 10 October 2017]   |  

Abstract

We theoretically analyze the phase noise transfer issue between the pump and the wavelength-converted idler for a nondegenerate four-wave mixing (FWM) scheme, as well as study the vector theory in nonlinear semiconductor optical amplifiers (SOAs), in order to design a polarization-insensitive wavelength conversion system employing dual co-polarized pumps. A tunable sampled grating distributed Bragg reflector (SG-DBR) pump laser has been utilized to enable fast wavelength conversion in the sub-microsecond timescale. By using the detailed characterization of the SGDBR laser, we discuss the phase noise performance of the SGDBR laser. Finally, we present a reconfigurable SOA-based all-optical wavelength converter using the fast switching SGDBR tunable laser as one of the pump sources and experimentally study the wavelength conversion of the single polarization quadrature phase shift keying (QPSK) and polarization multiplexed (Pol-Mux) QPSK signals at 12.5-Gbaud. A wide tuning range (>10 nm) and less than 50 ns and 160 ns reconfiguration time have been achieved for the wavelength conversion system for QPSK and PM-QPSK signals, respectively. The performance under the switching environment after the required reconfiguration time is the same as the static case when the wavelengths are fixed. View Full-Text
Keywords: all-optical networks; wavelength conversion devices; tunable lasers all-optical networks; wavelength conversion devices; tunable lasers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lin, Y.; P. Anthur, A.; P. Ó Dúill, S.; Liu, F.; Yu, Y.; P. Barry, L. Fast Reconfigurable SOA-Based Wavelength Conversion of Advanced Modulation Format Data. Appl. Sci. 2017, 7, 1033.

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