Investigation of Dual-Pump FOPA Performance in a 4-Channel 40 Gbps WDM Transmission System

Olonkins, Sergejs; Bickovs, Vladislavs; Salgals, Toms; Bobrovs, Vjačeslavs; Ivanovs, G.

doi:10.5755/j01.eie.23.6.19699

Cited by 2 publications

(2 citation statements)

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“… = Figure 8 shows  for the case of P1 = 1W and P2 = 0.8W is the closest to zero if compared to the other three cases, so its gain drops at its wavelength near the central wavelength drops is the minimum. It is because if the pumps are placed far from the ZDW, lower gain will be obtained [2]. To optimize p   , p   was varied from 11.25nm to 41.25nm with an increment of 10nm, while c  and other parameters were fixed as given in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…The demand for ultra-fast telecommunication system has been dramatically increased due to the pandemic of COVID-19 which reduces face to face meeting and traveling but an increase of online meeting, teaching, presentation and training. Fiber-optical parametric amplifier (FOPA) which offers high flat gain and broad bandwidth of 10 to 100nm [1,2] can increase the transport capacity of fiber communication systems. Besides, FOPA also provides other functionalities such as adjustable center frequency and gain spectra, phase conjugation, wavelength conversion, pulsed operation for signal processing and 0-dB noise figure [3] has made FOPA overcome conventional amplifier such as RAMAN amplifier and (RA) and Erbium-doped fiber amplifier (EDFA).…”

Section: Introductionmentioning

confidence: 99%

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Investigation Of Dual-Pump Fiber Optical Parametric Amplifier Performance Driven by Energy Transfer Between Four-Wave Mixing Process

Tay

Cholan

Othman

2021

ARFMTS

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Fiber optical parametric amplifier (FOPA) is operated based on energy transfer from pump waves to signal wave and at the end of the fiber, an idler wave is generated. This process is called four-wave mixing (FWM). Even though effects of higher-order dispersion coefficients, fiber length, fiber nonlinearity, fiber attenuation, pump powers, pump wavelength separation and distance of central pump wavelength with ZDW on gain profiles have been examined by previous researchers, but on different fiber or numerically studied using the Optisys system, analytical model or different amplitude equations. Thus, in this study, the above-mentioned parameters on the gain performance of dual pump fiber optical parametric amplifier (FOPA) using highly nonlinear shifted fiber (HNL-DSF) as a medium will be numerically investigated using ode45 function in Matlab. The gain at a certain wavelength can be obtained by solving 4 coupled amplitude equations with fiber loss and pump depletion that govern the four-wave mixing (FWM) process of pumps, signal and idler waves. Simulations results indicate positive gives poor or no gain, meanwhile, an addition of to negative widens the bandwidth, but there is no significant effect with the addition of . Besides, an increase of fiber length, nonlinearity and pump powers improve gain performance, but an increase of fiber loss decays the gain amplitude. Increment of pump separation will enhance flatness of gain at wavelength far from central wavelength but results in an increase of gain reduction at the central wavelength. Lastly, must be positive, not too small and not bigger than 1.125nm to get a high, broader and lesser ripples gain.

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Section: Resultsmentioning

confidence: 99%