Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber
The ever-increasing demand for the transmission capacity has stimulated intensive investigations, in terms of both new transmission window of standard single mode fiber (SSMF) and new fiber utilizing the spatial domain. Multi-band wavelength division multiplexing (WDM) transmission exploring the ext...
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10663998/ |
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| author | Tangyanjun Lan Junjiang Xiang Gai Zhou Meng Xiang Songnian Fu Yuwen Qin |
| author_facet | Tangyanjun Lan Junjiang Xiang Gai Zhou Meng Xiang Songnian Fu Yuwen Qin |
| author_sort | Tangyanjun Lan |
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| description | The ever-increasing demand for the transmission capacity has stimulated intensive investigations, in terms of both new transmission window of standard single mode fiber (SSMF) and new fiber utilizing the spatial domain. Multi-band wavelength division multiplexing (WDM) transmission exploring the extended wavelength band, besides traditional C+L band, is an attractive solution for the rapid and cost-effective enhancement of transmission capacity. To this end, here we demonstrate the U-band WDM transmission over 125-km G.652.D fiber, when the C-band amplified spontaneous emission (ASE) source acts as the incoherent pump for Raman amplification (RA). Meanwhile, bidirectional long short-term memory neural network (BiLSTM-NN) is applied to inversely design the spectral shape of two C-band ASE sources. After the optimization through inverse design, the ROP variation at the U-band can be less than 1.2 dB under different net Raman gains. Consequently, we can experimentally achieve a net Raman gain of ∼15 dB over a 3 dB bandwidth of around 2.1 THz at the U-band, under the condition of distributed bidirectional Raman pump configuration. Finally, the performance of the U-band RA is experimentally verified by transmitting three-wavelength 20 GBaud DP-QPSK signals, when the threshold of 7% HD-FEC can be successfully reached. |
| format | Article |
| id | doaj-art-b2cdca3978d3458cafee49e1516f6db7 |
| institution | OA Journals |
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| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
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| series | IEEE Photonics Journal |
| spelling | doaj-art-b2cdca3978d3458cafee49e1516f6db72025-08-20T02:38:10ZengIEEEIEEE Photonics Journal1943-06552024-01-011651610.1109/JPHOT.2024.345387010663998Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D FiberTangyanjun Lan0Junjiang Xiang1https://orcid.org/0000-0001-5185-5322Gai Zhou2https://orcid.org/0000-0001-6278-5964Meng Xiang3https://orcid.org/0000-0002-3052-2251Songnian Fu4https://orcid.org/0000-0003-3330-9170Yuwen Qin5https://orcid.org/0000-0001-9879-1514Institute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaInstitute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaInstitute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaInstitute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaInstitute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaInstitute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, ChinaThe ever-increasing demand for the transmission capacity has stimulated intensive investigations, in terms of both new transmission window of standard single mode fiber (SSMF) and new fiber utilizing the spatial domain. Multi-band wavelength division multiplexing (WDM) transmission exploring the extended wavelength band, besides traditional C+L band, is an attractive solution for the rapid and cost-effective enhancement of transmission capacity. To this end, here we demonstrate the U-band WDM transmission over 125-km G.652.D fiber, when the C-band amplified spontaneous emission (ASE) source acts as the incoherent pump for Raman amplification (RA). Meanwhile, bidirectional long short-term memory neural network (BiLSTM-NN) is applied to inversely design the spectral shape of two C-band ASE sources. After the optimization through inverse design, the ROP variation at the U-band can be less than 1.2 dB under different net Raman gains. Consequently, we can experimentally achieve a net Raman gain of ∼15 dB over a 3 dB bandwidth of around 2.1 THz at the U-band, under the condition of distributed bidirectional Raman pump configuration. Finally, the performance of the U-band RA is experimentally verified by transmitting three-wavelength 20 GBaud DP-QPSK signals, when the threshold of 7% HD-FEC can be successfully reached.https://ieeexplore.ieee.org/document/10663998/Raman amplifierneural networkinverse designWDM transmission |
| spellingShingle | Tangyanjun Lan Junjiang Xiang Gai Zhou Meng Xiang Songnian Fu Yuwen Qin Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber IEEE Photonics Journal Raman amplifier neural network inverse design WDM transmission |
| title | Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber |
| title_full | Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber |
| title_fullStr | Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber |
| title_full_unstemmed | Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber |
| title_short | Inverse Design of Incoherent Raman Pump Sources for U-Band WDM Transmission Over 125 km G.652.D Fiber |
| title_sort | inverse design of incoherent raman pump sources for u band wdm transmission over 125 km g 652 d fiber |
| topic | Raman amplifier neural network inverse design WDM transmission |
| url | https://ieeexplore.ieee.org/document/10663998/ |
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