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Photonics 2014, 1(4), 473-487; doi:10.3390/photonics1040473

Performance Analysis of a Hybrid Raman Optical Parametric Amplifier in the O- and E-Bands for CWDM PONs

1
Department of Electrical Engineering, City College of City University of New York, 160 Convent Avenue, New York, NY 10031, USA
2
Engineering Science & Physics, The College of Staten Island of City University of New York, 2800 Victory Boulevard, Staten Island, NY 10314, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 1 November 2014 / Revised: 25 November 2014 / Accepted: 25 November 2014 / Published: 1 December 2014
(This article belongs to the Special Issue Nonlinear Fiber Optics)
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Abstract

We describe a hybrid Raman-optical parametric amplifier (HROPA) operating at the O- and E-bands and designed for coarse wavelength division multiplexed (CWDM) passive optical networks (PONs). We present the mathematical model and simulation results for the optimization of this HROPA design. Our analysis shows that separating the two amplification processes allows for optimization of each one separately, e.g., proper selection of pump optical powers and wavelengths to achieve maximum gain bandwidth and low gain ripple. Furthermore, we show that the proper design of optical filters incorporated in the HROPA architecture can suppress idlers generated during the OPA process, as well as other crosstalk that leaks through the passive optical components. The design approach enables error free performance for all nine wavelengths within the low half of the CWDM band, assigned to upstream traffic in a CWDM PON architecture, for all possible transmitter wavelength misalignments (±6 nm) from the center wavelength of the channel band. We show that the HROPA can achieve error-free performance with a 170-nm gain bandwidth (e.g., 1264 nm–1436 nm), a gain of >20 dB and a gain ripple of <4 dB. View Full-Text
Keywords: optical parametric amplifier; Raman amplifier; highly nonlinear fiber; coarse wavelength division multiplexing optical parametric amplifier; Raman amplifier; highly nonlinear fiber; coarse wavelength division multiplexing
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

Peiris, S.; Madamopoulos, N.; Antoniades, N.A.; Richards, D.; Dorsinville, R. Performance Analysis of a Hybrid Raman Optical Parametric Amplifier in the O- and E-Bands for CWDM PONs. Photonics 2014, 1, 473-487.

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