VSB Modified Duobinary PAM4 Signal Transmission in an IM/DD System With Mitigated Image Interference

Li, Jingchi; An, Shaohua; Zhu, Qingming; Su, Yikai

doi:10.1109/lpt.2020.2975839

Cited by 11 publications

(4 citation statements)

References 14 publications

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“…Optimized utilization of communication resources is the indeed demand of exponentially growing internet traffic. 1 The polarization multiplexed dual polarization differential quadrature phaseshift keying (DP-DQPSK) enables the increase in the data-transmission rate without deploying multiple fibers more efficiently. DP-DQPSK is more advantageous than the intensity modulation schemes in terms of more immunity to the noise, chromatic dispersion and higher-order nonlinearities.…”

Section: Introductionmentioning

confidence: 99%

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Design of a single laser source-based extreme parallel data-transmission link

Sharma,

Singh

2024

Opt. Eng.

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Exponentially increasing network traffic requires hundreds of terabits per second data transmission rate, consuming around 9% of the electricity worldwide. Massive parallel optical links demanded to support the data transmission capacity, but not favorable in terms of scalability, energy consumption, complexity, cost, and size. A single laser source followed with semiconductor optical amplifier based optical frequency comb enabling data transmission of 6.78 Tbps over an 80 km singlemode fiber (SMF) is a possible solution to reduce the energy consumption, complexity, cost, and area. The data transmission over 80 km SMF also makes it suitable for inter-data center communication. So, in the proposed work, the evenly spaced and phase-coherent 113 frequency lines individually modulated using differential quadrature phase-shift keying at the bit rate of 30 Gb∕s and then multiplex using polarization and wavelength multiplexing technique to transmit signal over 94.4 km (80 km single core and single mode fiber and 14.4 km dispersion compensating fiber). The proposed work has also carried out the detailed analysis of optical frequency comb parameters required for its application in telecommunication. Following the procedure mentioned earlier, a signal at the minimum quality factor of 23 dB with total transmission rate of 6.78 THz for 226 users is achieved at the receiving end, making the work suitable for telecommunication and inter-data-center communication applications.

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Section: Introductionmentioning

confidence: 99%

“…Optimized utilization of communication resources is the indeed demand of exponentially growing internet traffic 1 . The polarization multiplexed dual polarization differential quadrature phase-shift keying (DP-DQPSK) enables the increase in the data-transmission rate without deploying multiple fibers more efficiently.…”

Section: Introductionmentioning

confidence: 99%

Design of a single laser source-based extreme parallel data-transmission link

Sharma,

Singh

2024

Opt. Eng.

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“…The architecture used an ADC (analog-to-digital converter) to sample and quantize the data and then used a CMOS logic circuit to implement multi-draw balancing and forward error correction in a DSP (digital signal processor), to alleviate bandwidth degradation and linearity constraints in traditional architectures [17]. Compared with the existing references, the transmitter rate was not high, the PAM4/NRZ modulation was adopted more often, and the study of the duo-binary PAM4 modulation was concentrated in the optical channel [14,15,18,19]. The transmitter designed in this paper is used in the electrical channel with a rate of 112 Gb/s and adopts the duo-binary PAM4 modulation, which has more concentrated energy and higher bandwidth utilization.…”

Section: Introductionmentioning

confidence: 99%

“…A 112 Gb/s SerDes transmitter is designed based on the duo-binary PAM4 modulation technology. Under the condition of limited bandwidth transmission, the duo-binary PAM4 modulation can keep the bit error rate at a lower level than the PAM4 modulation, reducing the bandwidth requirement [10,11,18,20]. This paper describes the general circuit architecture of the transmitter, the critical module of the transmitter is analyzed in detail, and the simulation results are given.…”

Section: Introductionmentioning

confidence: 99%

A 112 Gb/s DAC-Based Duo-Binary PAM4 Transmitter in 28 nm CMOS

Tang

Shi

et al. 2022

Electronics

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To reduce the high bit error rate of serial transceivers under strong channel attenuation, a low-power 112 Gb/s SerDes transmitter was designed using a duo-binary PAM4 modulation technology. By adopting duo-binary PAM4 modulation technology, the problem of the low bandwidth utilization of a high-speed PAM4 (pulse amplitude modulation 4) signal was improved. The problem of high jitter caused by charge sharing and the limited bandwidth of a 4:1 high-speed MUX was improved by using precharging auxiliary transistors. The system power consumption of the transmitter was reduced by using a 7-bit weighted voltage-driven digital-to-analog converter (DAC). The transmitter was designed with a 28 nm CMOS process and powered by a voltage of 0.9 V. The simulation results showed that when the channel attenuation was 20.9 dB, the transmitter could work at 112 Gb/s, the power consumption was 2.02 pJ/bit, and the linearity was 96.7%.

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Means to Accelerate Transfer of Information Between Integrated Circuits

Melikyan

2023

Machine Learning-Based Design and Optimization of High-Speed Circuits

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VSB Modified Duobinary PAM4 Signal Transmission in an IM/DD System With Mitigated Image Interference

Cited by 11 publications

References 14 publications

Design of a single laser source-based extreme parallel data-transmission link

Design of a single laser source-based extreme parallel data-transmission link

A 112 Gb/s DAC-Based Duo-Binary PAM4 Transmitter in 28 nm CMOS

Means to Accelerate Transfer of Information Between Integrated Circuits

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