کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6888273 | 1444920 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A VCSEL-based backbone extended-reach optical fibre network: Supporting up to 10â¯Gbps flexible access networks for Africa
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
In this paper, using vertical cavity surface-emitting lasers (VCSELs) and Raman amplification, a low power consuming, energy-efficient and cheap technique to transmit high speed data signals over optical fibre is experimentally demonstrated. Several channels are joined through dense wavelength division multiplexing (DWDM) technique and transmitted over a single fibre link. With a 24.7â¯dBm forward Raman pump, a 8â¯dB flat gain is distributed over a spectral width of 5.2â¯nm (650â¯GHz). Moreover, different wavelength paths are realized by tuning the emission of the VCSEL from 1546.8â¯nm to 1552â¯nm while adjusting its bias currents. In realizing extended-reach, two DWDM/flexible channels spaced at 50â¯GHz and with each transmitting at 10â¯Gbps have been transmitted for 76.8â¯km while incurring a 3.2â¯dB power penalty as measured at a bit-error-rate (BER) threshold of 10â9. In a typical network, the wavelength adjustment of the VCSEL avoids incidences of denial of service whenever there is either fibre-cuts, increased network traffic or channel collisions. Finally, by combining Raman amplification and chromatic dispersion mitigation using negative dispersion shifted fibres, this work presents robust VCSEL-based technique that is tailored to provide 10â¯Gbps per channel for backbone optical fibre supporting long-haul access networks in Africa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 43, July 2018, Pages 126-130
Journal: Optical Fiber Technology - Volume 43, July 2018, Pages 126-130
نویسندگان
D. Kiboi Boiyo, T.B. Gibbon, E.K. Rotich Kipnoo,