Bidirectional 50 Gb/s/λ WDM-PON based on optical intensity modulation and direct detection

Zhang, Zhiguo; Zhang, Bingbing; Ju, Cheng; Chen, Xue

doi:10.1007/s11082-016-0751-3

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…One way to achieve colorless ONUs is to apply identical wavelength-tunable lasers in all ONUs. 13,14 The laser is tuned to the preassigned wavelength when the ONU is installed. The main disadvantages of this method are the limited tuning range and the instability of the wavelength.…”

Section: Introductionmentioning

confidence: 99%

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A novel multi‐ary PolSK modulation for downstream signal in wavelength reusing wavelength division multiplexing passive optical network

Qiu,

Lu,

et al. 2024

Micro & Optical Tech Letters

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A novel modulation, that is, multi‐ary polarization shift keying (PolSK) modulation is proposed for wavelength division multiplexing passive optical networks (PONs) to achieve colorless optical network units. The downstream signal applies the proposed multi‐ary PolSK to eliminate the induced crosstalk to the remodulated amplitude shift keying upstream signal. Different from traditional PolSK, there are more than two polarization states in the proposed multi‐ary PolSK, so it provides higher bit rates and spectra efficiency. Four‐ary and 6‐ary PolSK are demonstrated and evaluated by simulation. The results show the proposed multi‐ary PolSK supports high‐speed downstream signal in future PONs with very low crosstalk induced to the remodulated upstream signal.

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Section: Introductionmentioning

confidence: 99%

“…One way to achieve colorless ONUs is to apply identical wavelength‐tunable lasers in all ONUs 13,14 . The laser is tuned to the preassigned wavelength when the ONU is installed.…”

Section: Introductionmentioning

confidence: 99%

A novel multi‐ary PolSK modulation for downstream signal in wavelength reusing wavelength division multiplexing passive optical network

Qiu,

Lu,

et al. 2024

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

Injection-locked range and linewidth measurements at different seed-laser linewidths using a Fabry–Pérot laser-diode

Ratkoceri

Batagelj

2018

Opt Quant Electron

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SOA Assisted Wavelength Reusing for 25G Colorless PON With Low-Cost 10G EAM

Huang

et al. 2022

IEEE Photonics J.

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This paper demonstrates a C-band 25G colorless passive optical network (PON) based on semiconductor optical amplifier (SOA) and 10G electro-absorption modulator (EAM). The experimental results show that the SOA in the optical network unit (ONU) can erase the downlink signal by taking advantage of the gain saturation feature, realizing the reuse of downstream wavelength. Meanwhile, the SOA gain can compensate for the EAM loss by optimizing the current and injection power. Apart from this, equalization algorithms at the optical line terminal are investigated for linear and nonlinear impairments compensation. Besides, the system robustness to the ASE and the maximum transmission speed are also evaluated. Finally, the system capacity can reach up to 25 Gbps with NRZ format at a bit-error ratio threshold of 2 × 10 −2 , proving that this system is a promising technology for future high-speed colorless 2 × 25G or 4 × 25G Wavelength division Multiplexing (WDM) PON system.

show abstract

Bidirectional 50 Gb/s/λ WDM-PON based on optical intensity modulation and direct detection

Cited by 3 publications

References 12 publications

A novel multi‐ary PolSK modulation for downstream signal in wavelength reusing wavelength division multiplexing passive optical network

A novel multi‐ary PolSK modulation for downstream signal in wavelength reusing wavelength division multiplexing passive optical network

Injection-locked range and linewidth measurements at different seed-laser linewidths using a Fabry–Pérot laser-diode

SOA Assisted Wavelength Reusing for 25G Colorless PON With Low-Cost 10G EAM

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