Optical Amplified 40-Gbps Symmetrical TDM-PON Using 10-Gbps Optics and DSP

Yin, Shuang; Houtsma, Vincent; Veen, Doutje van; Vetter, Peter

doi:10.1109/jlt.2016.2614767

Cited by 17 publications

(15 citation statements)

References 20 publications

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“…Some approaches, mainly based on PAM4 modulation, are based on 25 GHz electrical bandwidth components, which are still expensive for both photonics and RF components, and present limited optical power budgets and reach [5]. Several works have explored different techniques to achieve high bit rate links using ~10 GHz electrical bandwidth components [6,7]. The main goal is to increase the bit count per Hz, so most of the proposals use Optical Frequency Division Multiplexing (OFDM), Discrete Multitone (DMT), SubCarrier Multiplexing (SCM) or MultiCAP modulation schemes to make use of their bit loading capabilities.…”

Section: Introductionmentioning

confidence: 99%

50 Gb/s Transmission using OSSB-MultiCAP Modulation and a Polarization Independent Coherent Receiver For Next-Generation Passive Optical Access Networks

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et al. 2021

J. Lightwave Technol.

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In this paper, a spectrally efficient version of multiband Carrierless Amplitude Phase modulation (MultiCAP) based on Optical Single-Sideband (OSSB) techniques is proposed for its use in high capacity access links. The proposed system consists of four 2.5 GBd OSSB-MultiCAP bands with quadrature amplitude modulation and uses an insensitive polarization receiver to avoid optical polarization issues and adjustments at the receiver side. This scheme has been experimentally evaluated and can provide an aggregated transmission rate of 50 Gb/s over 50 km of standard single mode optical fiber using only 10G electronic and photonic devices in C-band with a sensitivity of -23.2 dBm and a measured optical power budget of 25.2 dB. 40 Gb/s transmission over 50 km with a sensitivity of -27.5 dBm and a measured power budget of 32.5 dB is also demonstrated.

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Section: Introductionmentioning

confidence: 99%

50 Gb/s Transmission using OSSB-MultiCAP Modulation and a Polarization Independent Coherent Receiver For Next-Generation Passive Optical Access Networks

Barrio

Izquierdo

Altabás³

et al. 2021

J. Lightwave Technol.

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“…Much effort has been made to delivering beyond 10 Gb/s data by using existing 10-G, optics in order to upgrade the capacity of PONs in a cost and energy-efficient manner. Example demonstrations include 25 Gb/s, 40 Gb/s, or 50 Gb/s electrical Duobinary [2][3][4][5][6], optical Duobinary [3,[5][6][7], and four-level pulse amplitude modulation (PAM-4) [2,[4][5][6]8]. More complex multi-band or multi-carrier modulation schemes [9,10] have also been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

“…These schemes have shown the feasibility of supporting 25 Gb/s or 40 Gb/s data rates using 10-G transmitters [2,3,7,8] and/or 10-G receivers [2,3], and thus they can offer low-cost solutions. The measurements use either optical domain dispersion compensation [2,3], or simple digital signal processing (DSP) for dispersion compensation [4][5][6][7][8]. DSP is vital for enabling a practical low-cost realization of high-speed next-generation (NG) PON, without changing the optical infrastructure.…”

Section: Introductionmentioning

confidence: 99%

“…A low complex maximum likelihood estimation equalization has also been considered for the first time. This work distinguishes from previous work [4][5][6] where comparison between different modulation formats is made by using DSP with similar complexities, and with the same feedforward equalizer (FFE)/decision feedback equalizer (DFE) tap count and maximum likelihood sequence estimation (MLSE) state count, although Duobinary schemes can use a smaller number of MLSE states. An analysis and comparison of the complexity of all equalization strategies are also undertaken in the present contribution.…”

Section: Introductionmentioning

confidence: 99%

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DSP-Based 40 GB/s Lane Rate Next-Generation Access Networks

et al. 2018

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To address the continuous growth in high-speed ubiquitous access required by residential users and enterprises, Telecommunication operators must upgrade their networks to higher data rates. For optical fiber access networks that directly connect end users to metro/regional network, capacity upgrade must be done in a cost-and energy-efficient manner. 40 Gb/s is the possible lane rate for the next generation passive optical networks (NG-PONs). Ideally, existing 10 G PON components could be reused to support 40 Gb/s lane-rate NG-PON transceiver, which requires efficient modulation format and digital signal processing (DSP) to alleviate the bandwidth limitation and fiber dispersion. The major contribution of this work is to offer insight performance comparisons of 40 Gb/s lane rate electrical three level Duobinary, optical Duobinary, and four-level pulse amplitude modulation (PAM-4) for incorporating low complex DSPs, including linear and nonlinear Volterra equalization, as well as maximum likelihood sequence estimation. Detailed analysis and comparison of the complexity of various DSP algorithms are performed. Transceiver bandwidth optimization is also undertaken. The results show that the choices of proper modulation format and DSP configuration depend on the transmission distances of interest.

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“…Recently, to solve the mentioned challenges, single-carrier modulation formats combined with time-domain equalization (TDE) have been widely investigated for PON [9]- [11]. Feed-forward equalizer (FFE) and decision feed-back equalizer (DFE) are effectively to handle channel distortions while their computational complexity are directly related to tap numbers [12], [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental Demonstration of 40-Gb/s I-SC-FDM With 10G-Class Optics and Low-Complexity DSP for Next-Generation PON

et al. 2018

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Low cost and low energy consumption are two important issues for the upgrade of next-generation passive optical network (PON). In this paper, we experimentally demonstrated a 40-Gb/s PON downstream transmission employing interleaved single carrier frequency-division multiplexing (I-SC-FDM) modulation and joint frequency-time domain equalization. At the transmitter, low peak-to-average power ratio and low-complexity signal is generated using simplified encoding structure of phase rotation and complex-to-real transform. At the receiver, the digital signal processing is of low computational complexity since very few taps of joint equalization are needed. 10G-class optics are used both in transmitter and receiver to maintain a low-cost system. Experimental results indicate that total 28.6 dB link power budget over 20 km transmission in C-band was successfully achieved without using any optical amplifier or optical dispersion compensation fiber, which supports up to 1 : 256 optical splitter ratio in PON systems. The proposed scheme is of great reference significance in the next-generation PON systems.

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Optical Amplified 40-Gbps Symmetrical TDM-PON Using 10-Gbps Optics and DSP

Cited by 17 publications

References 20 publications

50 Gb/s Transmission using OSSB-MultiCAP Modulation and a Polarization Independent Coherent Receiver For Next-Generation Passive Optical Access Networks

50 Gb/s Transmission using OSSB-MultiCAP Modulation and a Polarization Independent Coherent Receiver For Next-Generation Passive Optical Access Networks

DSP-Based 40 GB/s Lane Rate Next-Generation Access Networks

Experimental Demonstration of 40-Gb/s I-SC-FDM With 10G-Class Optics and Low-Complexity DSP for Next-Generation PON

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