Narrow spectrum VCSEL development for high performance 100G transceivers and increased transmission distance over multimode fiber

Chorchos, Łukasz; Makarov, O. Yu.; Kropp, J.‐R.; Shchukin, V. A.; Kalosha, V. P.; Turkiewicz, J. P.; Ledentsov, N. N.

doi:10.1117/12.2578216

Cited by 6 publications

(7 citation statements)

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“…Corning Inc. also presented the 52-Gbit/s PAM-4 data transmission carried by the SM VCSEL [49]. VI-Systems observed that the 850-nm and 910-nm SM VCSELs carried the 106-Gbit/s PAM-4 data to achieve the IEEE802.3cm standard in the future [50]. The related reports about the PAM-4 data transmission carried by the VCSEL are summarized in Fig.…”

Section: Wut-vis [36]mentioning

confidence: 99%

“…In 2015, the 850-nm VCSEL carrying the 112-Gbit/s PAM-4 data over 200-m MMF was demonstrated by Zuo et al [32]. In 2016, Castro and co-workers enhanced the data rate of the PAM-4 transmission to 50 Gbit/s in the 200-m wideband MMF case via a pre-distortion technology [33]. Szczerba et al further employed the data pre-emphasis process to improve the data rate to 94 Gbit/s for the PAM-4 transmission carried by 850-nm VCSEL [34].…”

Section: B Encoding the Vcsel With The Pam-4 Data Format For Upgrading The Data Centersmentioning

confidence: 99%

“…WUT-VIS [50] NTU [48] Corning-NTU -NYCU [49] GIT [45] NTU [46] SJTU [43] SJTU [42] SU [41] NTU [40] GIT-CUT [39] NTU [38] Finisar [35] Huawei-Keysight [37] CUT [34] Panduit [33] CUT [31] Huawei [47] Huawei [32] CUT [30] [40]. In BtB and 300-m OM4 MMF conditions, the data rates of the PAM-4 transmission can be respectively obtained as 64 Gbit/s and 48 Gbit/s [40].…”

Section: Wut-vis [36]mentioning

confidence: 99%

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Review of VCSELs for Complex Data-Format Transmission Beyond 100-Gbit/s

Cheng

Su³

et al. 2021

IEEE Photonics J.

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The developing progress on the structural design and data algorithms to enable the vertical-cavity surface-emitting lasers (VCSELs) for transmitting multiple complex data formats beyond 100-Gbit/s has been reviewed in this paper. Up to now, academic and industrial institutions still keep their research pace on studying how to improve the allowable data rate of various data formats carried by the VCSEL device. Persistent efforts are endeavored not only to achieve the IEEE802.3 standards for data center applications but also to initiate the new era of wired and wireless network coverage. To date, the highest allowable data rates of the single-VCSEL-based optical link for transmitting the NRZ-OOK format at 80 Gbit/s in the BtB case, the PAM-4 format at 168 Gbit/s over 150-m OM5 MMF, and the QAM-OFDM format at 224 Gbit/s in the BtB case have been achieved in 2021. For the high-level complex data-format transmission with rigorous demand of the signal-to-noise ratio (SNR), this work demonstrates the most up-to-date 32-ray quadrature amplitude modulation generalized frequency division multiplexing (32-QAM GFDM) data algorithm with optimized amplitude and K value for encoding the multimode (MM) VCSEL. To achieve the higher spectral-usage efficiency based on the SNR spectrum for maximal transmission data rate, the bit-loading discrete multi-tone (DMT) technique is implemented by rearranging each subcarrier to the appropriate QAM levels. By utilizing 32-QAM GFDM and bit-loading DMT, the maximal data rate in the back-to-back case could respectively achieve 119.5 Gbit/s and 130 Gbit/s when operating the MM VCSEL at 55 o C. After propagating through OM5 MM fiber (MMF), the transmission capacity of the VCSEL operated at 55 o C would decrease to 93.8 Gbit/s for 32-QAM GFDM and 83 Gbit/s for bit-loading DMT owing to the modal dispersion in OM5 MMF.

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Section: Wut-vis [36]mentioning

confidence: 99%

Section: B Encoding the Vcsel With The Pam-4 Data Format For Upgrading The Data Centersmentioning

confidence: 99%

Section: Wut-vis [36]mentioning

confidence: 99%

See 1 more Smart Citation

Review of VCSELs for Complex Data-Format Transmission Beyond 100-Gbit/s

Cheng

Su³

et al. 2021

IEEE Photonics J.

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“…After 44 years of development, remarkable progress has been made on the development of VCSELs, and many researchers have demonstrated ultra-fast VCSELs with modulation bandwidths of up to 30 GHz [22,[61][62][63][64][65]116]. Some of the selected works on 850 nm VCSELs are shown in Figure 16 and Table Y e a r Note: This table summarizes the maximum data rates and 3-dB bandwidths at RT (unless stated otherwise) reported in these manuscripts.…”

Section: Historical Review Of Modern 850 Nm Vcsels and Features Of Ne...mentioning

confidence: 99%

“…Valuable progress has been made in the development of devices and advanced modulation formats to enable high modulation responses and energy-efficient and rapid data transmission using VCSELs in the last few decades. Significant achievements have been made in the improvement of 850 nm VCSELs' modulation bandwidths, and the fastest reported 3 dB modulation bandwidth to date is ∼30 GHz [22,[61][62][63][64][65]116]. On the other hand, more work has to be done to standardize and commercialize these high-speed 850 nm VCSELs in commercial transceivers to enable the future 800 GbE and 1.6 TbE Ethernets.…”

Section: Features Of Next-generation Vcselsmentioning

confidence: 99%

Recent Advances in 850 nm VCSELs for High-Speed Interconnects

et al. 2022

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Vertical-cavity surface-emitting lasers (VCSELs) have made remarkable progress, are being used across a wide range of consumer electronic applications, and have particularly received much attention from the telecom and datacom industries. However, several constraints are thus currently being tackled to improve the device characteristics and modulation formats to meet the various demanding requirements of the future 800 GbE and 1.6 TbE Ethernet standards. This manuscript discusses the device characteristics and the key considerations in the device designs and optimizations. Finally, we elucidate the latest developments and vital features of modern 850 nm VCSELs for high-speed interconnects.

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70 Gbps PAM-4 850-nm oxide-confined VCSEL without equalization and pre-emphasis

Liu,

Tang,

et al. 2024

J. Semicond.

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Narrow spectrum VCSEL development for high performance 100G transceivers and increased transmission distance over multimode fiber

Cited by 6 publications

References 0 publications

Review of VCSELs for Complex Data-Format Transmission Beyond 100-Gbit/s

Review of VCSELs for Complex Data-Format Transmission Beyond 100-Gbit/s

Recent Advances in 850 nm VCSELs for High-Speed Interconnects

70 Gbps PAM-4 850-nm oxide-confined VCSEL without equalization and pre-emphasis

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