Discrete Multitone Modulation for High-Speed Data Transmission over Multimode Fibers using 850-nm VCSEL

Lee, S.C.J.; Breyer, F.; Randel, S.; Cardenas, D.; Boom, H.P.A. van den; Koonen, A.M.J.

doi:10.1364/ofc.2009.owm2

Cited by 25 publications

(16 citation statements)

References 2 publications

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“…In most short range optical transmission systems, the channels show similar features such as a low-pass frequency response and very good channel condition (very high SNR) at low frequency part [3][4][5]. The Gaussian low-pass filter channel model has been proved to be suitable for the POF systems [24].…”

Section: Gaussian Low-pass Filter Channel Modelmentioning

confidence: 99%

PN-PAM scheme for short range optical transmission over SI-POF — an alternative to Discrete Multi-Tone (DMT) scheme

Peng

Liu

Hélard

et al. 2017

J. Eur. Opt. Soc.-Rapid Publ.

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Background: How to deal with the time-dispersive channel is the main challenge faced by the short-range optical communication systems. In this work a novel pseudo-noise sequence (PN) assisted pulse-amplitude modulated (PN-PAM) transmission scheme for short-range optical communication systems is proposed in this work. With the help of the PN based channel estimation, minimum-phase pre-filter and reduced-state sequence estimation based equalizer, the proposed PAM transmission scheme can significantly reduce the training overhead for channel estimation in the classical PAM systems using decision feedback equalizer (DFE). In addition, the proposed PAM transmission scheme can effectively avoid the error propagation phenomenon in the classical DFE. Results: Theoretical study shows that the proposed PAM scheme can achieve a 1.5 dB SNR gain with PAM-8 modulation over 50 m step-index polymer optical fiber (SI-POF) channel at a desired BER level of 1 × 10 −3 and 1.2 Gbps transmission rate. Furthermore the hardware experiment using commercially available components proves the improvements in the proposed PAM transmission scheme. Conclusion:The novel PAM transmission scheme is compared to the optimized discrete multi-tone (DMT) transmission with bit-loading. The experimental results show that for a transmission distance less than 50 m over SI-POF, DMT systems outperform the PAM systems. However, for a SI-POF transmission over the distance longer than 50 m, the proposed scheme can reach a better performance than the DMT systems thanks to the advantage of a lower peak-to-average-power ratio.

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Section: Gaussian Low-pass Filter Channel Modelmentioning

confidence: 99%

PN-PAM scheme for short range optical transmission over SI-POF — an alternative to Discrete Multi-Tone (DMT) scheme

Peng

Liu

Hélard

et al. 2017

J. Eur. Opt. Soc.-Rapid Publ.

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show abstract

“…All of these require very fast electrical interfaces and suffer from low tolerance to modal dispersion compared to pass-band modulation formats [8]. Using discrete multitone (DMT) at an 850 nm window enabled a high transmission distance of 500 m MMF with a bit rate of 30-Gbps [9].…”

Section: Introductionmentioning

confidence: 99%

Enabling 4-Lane Based 400 G Client-Side Transmission Links with MultiCAP Modulation

Tatarczak

Olmedo

Zuo

et al. 2015

Advances in Optical Technologies

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We propose a uniform solution for a future client-side 400 G Ethernet standard based on MultiCAP advanced modulation format, intensity modulation, and direct detection. It employs 4 local area networks-wavelength division multiplexing (LAN-WDM) lanes in 1300 nm wavelength band and parallel optics links based on vertical cavity surface emitting lasers (VCSELs) in 850 nm wavelength band. Total bit rate of 432 Gbps is transmitted over unamplified 20 km standard single mode fiber link and over 40 km link with semiconductor optical amplifier. 70.4 Gb/s transmission over 100 m of OM3 multimode fiber using off-the-shelf 850 nm VCSEL with 10.1 GHz 3 dB bandwidth is demonstrated indicating the feasibility of achieving 100 Gb/s per lane with a single 25 GHz VCSEL. In this review paper we introduce and present in one place the benefits of MultiCAP as versatile scheme for use in a number of client-side scenarios: short range, long range, and extended range.

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“…Single-cycle SCM with 16-QAM has been demonstrated in links using VCSELs and MMFs [3], with the transmitter operating in real time and the digital processing on the receiver side being implemented off-line. Discrete multi-tone modulation, which is a multiple subcarrier scheme, has been demonstrated at 30 Gbps for the same type of link [4], also with off-line processing. The main advantages of the multiple subcarrier approaches are easier electronic equalization and increased robustness to effects of modal dispersion due to reduced symbol rates.…”

Section: Introductionmentioning

confidence: 99%

4-PAM for High-Speed Short-Range Optical Communications

Szczerba

Westbergh

Karout

et al. 2012

J. Opt. Commun. Netw.

124

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Abstract-In this work, we compare 4-pulse amplitude modulation and on-off keying modulation formats at high speed for short-range optical communication systems. The transmission system comprised a directly modulated verticalcavity surface-emitting laser operating at a wavelength of 850 nm, an OM3+ multimode fiber link, and a photodetector detecting the intensity at the receiver end. The modulation formats were compared both at the same bit-rate and at the same symbol rate. The maximum bit-rate used was 25 Gbps. Propagation distances up to 600 m were investigated at 12.5 Gbps. All measurements were done in real time and without any equalization.

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Discrete Multitone Modulation for High-Speed Data Transmission over Multimode Fibers using 850-nm VCSEL

Abstract: Lee, S.C.J.; Breyer, F.; Randel, S.; Cárdenas, D.; van den Boom, H.P.A.; Koonen, A.M.J.

Cited by 25 publications

References 2 publications

PN-PAM scheme for short range optical transmission over SI-POF — an alternative to Discrete Multi-Tone (DMT) scheme

PN-PAM scheme for short range optical transmission over SI-POF — an alternative to Discrete Multi-Tone (DMT) scheme

Enabling 4-Lane Based 400 G Client-Side Transmission Links with MultiCAP Modulation

4-PAM for High-Speed Short-Range Optical Communications

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