Two-photon absorption effects on self-phase-modulation-based 2R optical regeneration

We theoretically investigate the influence of two-photon absorption (TPA) on the performance of self-phase-modulation-based signal regenerators using a split-step Fourier method. Simulations with 40-Gb/s return-to-zero data bit streams show that a device with TPA can improve the signal (higher outpu...

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Bibliographic Details
Published in:IEEE photonics technology letters 2006-05, Vol.18 (10), p.1185-1187
Main Authors: Lamont, M.R.E., Rochette, M., Moss, D.J., Eggleton, B.J.
Format: Article
Language:English
Subjects:
Absorption
Chalcogenides
Devices
Fiber nonlinear optics
Fourier analysis
Nonlinear optics
Nonlinearity
Optical devices
optical fiber devices
Optical filters
Optical pulse shaping
Optical refraction
Optical signal processing
Optical variables control
Optimization
Repeaters
Simulation
Streams
Switching
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Summary:We theoretically investigate the influence of two-photon absorption (TPA) on the performance of self-phase-modulation-based signal regenerators using a split-step Fourier method. Simulations with 40-Gb/s return-to-zero data bit streams show that a device with TPA can improve the signal (higher output Q-factor) significantly more than a device with no TPA, and that the figure of merit of chalcogenide is close to optimal. This contrasts with the effects of TPA on nonlinear switching, which are always detrimental
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.874718