Experimental optimization of the scheme of second-order Raman amplifiers based on ultra-long span systems

Chi, Ronghua

doi:10.1016/j.rinp.2020.103195

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…Distributed Raman amplification (DRA) and ROPA are very beneficial technologies to enlarge the transmission distance in long-haul WDM transmission systems thanks to their excellent low noise characteristics [2,[6][7][8][10][11][12][13][14][15]. Especially, an optimized combination of a DRA and a ROPA, was recently proposed to demonstrate an enhancement of optical signal to noise ratio (OSNR) and a long-distance terrestrial field-trial [7,8].…”

Section: Et Al / Design Of Ultra-long-distance Optical Transport Netw...mentioning

confidence: 99%

Design of ultra-long-distance optical transport networks based on high-order remotely pumped amplifier

Chi

Gui

et al. 2022

JHS

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In order to further increase the span length of the Optical Transport Network (OTN) transmission system, a combination of Raman amplifier and remotely optical pumped amplifier (ROPA) configuration scheme is recommended. Optimal EDF length, optimal ROPA position and OTN span limitation are obtained through simulations. A field-trial with 8*10 Gb/s in 380 km span system is carried out with the amplifier configuration of Raman amplifier plus first-order and second-order remotely pumped amplifier. By adding a second-order remote pump laser, the transmission limit is increased from 77.5 dB to 80.7 dB. Through detailed analysis of the system, it is concluded that the second-order remote pump can effectively transfer the pump power to the first-order remote pump wavelength, which greatly increases the pump power at the gain module, thereby increasing the gain of the RGU and reduce its noise. Moreover, the introduction of the second-order remote pump effectively weakened the self-excited effect and overcomes the shortcomings of the low pump power threshold of the first-order remote pump.

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Section: Et Al / Design Of Ultra-long-distance Optical Transport Netw...mentioning

confidence: 99%

Design of ultra-long-distance optical transport networks based on high-order remotely pumped amplifier

Chi

Gui

et al. 2022

JHS

Self Cite

View full text Add to dashboard Cite

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L-U-band multiwavelength Brillouin-Raman fiber laser assisted by a broadband pump source

Al-Alimi,

Cholan,

Zainol Abidin

et al. 2023

Opt Quant Electron

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Low cost high-order Raman amplifier assisted enhanced remotely pump amplifier technology for ultra-long span OTN system

Chi

2021

Results in Physics

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Experimental optimization of the scheme of second-order Raman amplifiers based on ultra-long span systems

Cited by 6 publications

References 7 publications

Design of ultra-long-distance optical transport networks based on high-order remotely pumped amplifier

Design of ultra-long-distance optical transport networks based on high-order remotely pumped amplifier

L-U-band multiwavelength Brillouin-Raman fiber laser assisted by a broadband pump source

Low cost high-order Raman amplifier assisted enhanced remotely pump amplifier technology for ultra-long span OTN system

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