0.55 Tb/s heterogeneous Nyquist-WDM superchannel using different polarization multiplexed subcarriers

Sharma, Divya; Prajapati, Yogendra Kumar; Tripathi, Rajeev

doi:10.1007/s11107-019-00872-w

Cited by 6 publications

(7 citation statements)

References 34 publications

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“…The proposed Nyquist‐only PM16‐ QAM superchannel exhibits increased SEDP by a factor of 2.78 and 8.5 than that of the Zhou et al 39 and Silva et al 40 reported work, respectively. In comparison to Sharma et al, 27 the proposed MLR‐based Nyquist‐WDM superchannel exhibits improved SE by 26%, increased system capacity by 82%, and excellent enhanced SEDP in the presence of PSCF by PM‐8QAM and PM‐16QAM subcarriers by 167%. It is also noteworthy that the proposed MLR‐based Nyquist‐WDM subcarrier exhibits enhanced transmission reach of 21%–25% over proposed Nyquist‐only subcarrier in the presence of PSCF.…”

Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 72%

“…Due to carrying separate coherent receivers as per modulation formats, PM‐8QAM subcarrier travels further and results in higher transmission reach instead of PM‐16QAM due to lower OSNR requisite 27 . Here, ref 4,27,38 . are simulation study, while ref 37,39,40 .…”

Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 99%

“…In jTable 3, a chart is presented to compare the proposed Nyquist-only and MLR-based terabit Nyquist-WDM superchannel at 33.33 GHz with other existing literature through SSMF and PSCF. To make an effective comparison, similar 27 Here, ref. 4,27,38 are simulation study, while ref.…”

Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 99%

“…They transmitted four subcarriers of contrast modulation formats PM‐16QAM, PM‐8QAM, PM‐QPSK, and PM‐BPSK, with 27.75 Gbaud over pure silica core fiber (PSCF) together with hybrid optical amplification. They achieved excellent SE of 4.5 bit/s/Hz and coverage of 2300 and 5500 km for PM‐16QAM and PM‐QPSK subcarriers 27 …”

Section: Introductionmentioning

confidence: 99%

“…They achieved excellent SE of 4.5 bit/s/Hz and coverage of 2300 and 5500 km for PM-16QAM and PM-QPSK subcarriers. 27 In this paper, we aim terabit capacity superchannel, where each subcarrier works at a baud rate of 27.75 Gbaud for PM-16QAM and PM-8QAM modulation formats. Here, 11% overhead is considered in the actual baud rate of 25 Gbaud, 7% due to the forward error correction (FEC) and 4% due to Ethernet.…”

Section: Introductionmentioning

confidence: 99%

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Independent and mixed transmission of 166.5 Gb/s PM‐8QAM and 222 Gb/s PM‐16QAM Nyquist‐wavelength division multiplexed superchannel for long‐haul metro network

Sachan

Sharma

Prajapati

et al. 2021

Int J Communication

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Summary This paper investigates the Nyquist‐wavelength division multiplexed (Nyquist‐WDM) terabit superchannel by employing independent and mixed line rate (MLR) transmission of different polarization‐multiplexed quadrature amplitude modulation (PM‐QAM) subcarriers. Here, terabit superchannel transmission including forward error correction overhead is successfully achieved by employing either 7 × 166.5 Gb/s PM‐8QAM or 5 × 222 Gb/s PM‐16QAM or both 2 × 166.5 Gb/s PM‐8QAM and 3 × 222 Gb/s PM‐16QAM simultaneous transmission. Considering linear filtering penalties and nonlinear propagation effects, the proposed superchannel is transmitted over standard single‐mode fiber (SSMF) and pure silica core fiber (PSCF) along with erbium‐doped fiber amplifier (EDFA) at 19.8‐ and 15.12‐dB span loss for SSMF and PSCF, respectively. The performance of both terabit superchannels is analyzed in terms of maximum reach, good spectral efficiency, highest transmission capacity, and optimum launch power with variation in channel spacing from 50‐GHz fixed ITU‐T grid to 29 GHz, at an acceptable bit error rate (BER). To achieve BER 4 × 10−3, MLR‐based 166.5 Gb/s PM‐8QAM and 222 Gb/s PM‐16QAM suffer a penalty of 5.5‐ and 9.2‐dB OSNR over Nyquist‐only 7 × 166.5 Gb/s PM‐8QAM and 5 × 222 Gb/s PM‐16QAM transmission at the advent of a flexible multi‐flow transponder. It is observed that at 33.33‐GHz Nyquist spacing over PSCF, 5 × 222 Gb/s PM‐16QAM and 7 × 166.5 Gb/s PM‐8QAM superchannels deliver a reach up to 1800 and 2970 km, while MLR approach results in extreme reach of 2250 and 3600 km over PSCF as per MLR PM‐16QAM and PM‐8QAM subcarriers, respectively. Hence, an appreciable spectral efficiency–distance product (SEDP) is achieved due to PSCF at Nyquist spacing of 33.33 GHz with 5.25 bit/s/Hz spectral efficiency. A good link power budget is also calculated for the proposed MLR‐based Nyquist‐WDM superchannel. MLR‐based PM‐16QAM and PM‐8QAM subcarriers deliver excellent SEDP of 11,812 and 18,900 bit/s/Hz·km, respectively, which is, to the best of author's knowledge, better on comparing with the other existing literature for single‐core channel explorations.

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Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 72%

Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 99%

Section: Results and Discussion: A Comparison With Existing Literaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Independent and mixed transmission of 166.5 Gb/s PM‐8QAM and 222 Gb/s PM‐16QAM Nyquist‐wavelength division multiplexed superchannel for long‐haul metro network

Sachan

Sharma

Prajapati

et al. 2021

Int J Communication

Self Cite

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Proposal of PPM-RZ-mQAM scheme for suppressing nonlinear phase noise in high spectral ultra-DWDM system

Abdulzahrah

Hmood

2021

Opt Quant Electron

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Detailed performance investigation and BER characterization of S+C+L band-WDM transmission system

Moosa

Fyath

2023

Optik

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0.55 Tb/s heterogeneous Nyquist-WDM superchannel using different polarization multiplexed subcarriers

Cited by 6 publications

References 34 publications

Independent and mixed transmission of 166.5 Gb/s PM‐8QAM and 222 Gb/s PM‐16QAM Nyquist‐wavelength division multiplexed superchannel for long‐haul metro network

Independent and mixed transmission of 166.5 Gb/s PM‐8QAM and 222 Gb/s PM‐16QAM Nyquist‐wavelength division multiplexed superchannel for long‐haul metro network

Proposal of PPM-RZ-mQAM scheme for suppressing nonlinear phase noise in high spectral ultra-DWDM system

Detailed performance investigation and BER characterization of S+C+L band-WDM transmission system

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