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Appl Opt. 2012 Nov 10;51(32):7834-41. doi: 10.1364/AO.51.007834.

Optimization of gain bandwidth and gain ripple of a hybrid Raman/parametric amplifier for access network applications.

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Department of Electrical Engineering, City College of City University of New York, New York 10031, USA.


We describe the mathematical model and present simulation results for the optimization of a hybrid Raman/optical parametric amplifier (HROPA), exhibiting a bandwidth of 170 nm and low ripple that covers the top half of the wavelength plan (e.g., 1441 to 1611 nm) of next generation coarse wavelength division multiplexed passive optical network systems. We show that a critical parameter in the proper amplifier parameter optimization is the inclusion of the fourth-order dispersion coefficient (β(4)). Omission of β(4) can lead to over-estimation or underestimation of the gain bandwidth, and hence its inclusion in the analysis of the HROPA is necessary.


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