Cost-Effective C-Band 50-Gb/s PON Implemented by Using a 2-Bit DAC and Linear Electrical Equalizer

Che, Yi; Kim, Hoon

doi:10.1109/lpt.2023.3234044

Cited by 4 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although EDFAs were used in the previous experiments [21,30,34], we believe that a costeffective SOA is required to make this system more attractive, such that it is cheap and integrable with other components, including a PD [4]. Then, the SOA would be located on the receiver side since the input power should be reduced to reduce the BER degradation (especially for the PAM-N signal) due to the nonlinear transfer characteristics arising from gain saturation [36,37]. The large noise figure of an SOA (compared to an EDFA) should also be considered [37].…”

Section: Discussionmentioning

confidence: 99%

“…Then, the SOA would be located on the receiver side since the input power should be reduced to reduce the BER degradation (especially for the PAM-N signal) due to the nonlinear transfer characteristics arising from gain saturation [36,37]. The large noise figure of an SOA (compared to an EDFA) should also be considered [37]. Therefore, it is necessary to demonstrate a transmission experiment using a SiP transmitter and a receiver integrating an SOA and a PD.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Two-Channel OTDM System for Data-Center Interconnects: A Review

Bae

Kim

2023

Sensors

View full text Add to dashboard Cite

It has been proposed to implement the >100 Gb/s data-center interconnects using a two-channel optical time-division multiplexed system with multilevel pulse-amplitude modulation. Unlike the conventional four-channel optical time-division multiplexed system which requires an expensive narrow pulse, the two-channel system can be implemented cost-effectively using a wide pulse (which can be simply generated using a single modulator). The two-channel system is expected to be practically available using an integrated transmitter in a chip due to the recent advances in photonics-integrated circuits. This paper reviews the current stage of research on a two-channel optical time-division multiplexed system and discusses possible research directions. Furthermore, it has been demonstrated that 200 Gb/s signals can be generated by using modulators with only 17.2 GHz bandwidth. Therefore, the use of the phase-alternating pulse can make the multiplexed signal robust to chromatic dispersion, enabling the 200 Gb/s 4-level pulse-amplitude-modulated signal to be transmitted over 1.9 km of standard single-mode fiber.

show abstract