Performance enhancement of pre-spectrum slicing technique for wavelength conversion
| Autor: | Harith Ahmad, David I. Forsyth, O.M. Kharraz, Abu Bakar Mohammad, Sulaiman Wadi Harun, Mohamad Dernaika |
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| Rok vydání: | 2015 |
| Předmět: |
Amplified spontaneous emission
Materials science business.industry Optical communication Physics::Optics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Four-wave mixing Wavelength Optics Narrowband Fiber Bragg grating Dispersion-shifted fiber Electrical and Electronic Engineering Physical and Theoretical Chemistry business Plastic optical fiber |
| Zdroj: | Optics Communications. 350:154-159 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2015.03.051 |
| Popis: | This paper details a proposal and successful demonstration of an ultra-narrow and very high optical signal-to-noise ratio wavelength converted channel that was generated from an efficient ultra-narrow pre-spectrum sliced probe channel via four-wave mixing in a highly non-linear fiber medium. An array of narrowband fiber Bragg grating filters acted as a discriminative component to pre-spectrum slice the probe channel from backward amplified spontaneous emission, which, in turn, induced an additional fiber Bragg grating filtering mechanism within an erbium-doped fiber medium in a saturable configuration. A resultant optical signal-to-noise ratio of more than 70 dB in the probe channel gave rise to a 40 dB optical signal-to-noise ratio in the converted channel. These outcomes indicate the proposed scheme is highly suitable for practical, cost-effective wavelength conversion in any “pre-spectrum sliced” optical communication system. |
| Databáze: | OpenAIRE |
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