Performance analysis of 40 Gb/s free space optics transmission based on orbital angular momentum multiplexed beams

Singh, Mehtab; Atieh, Ahmad; Grover, Amit; Barukab, Omar

doi:10.1016/j.aej.2021.10.043

Cited by 53 publications

(14 citation statements)

References 31 publications

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“…14(a)) [178]. Such FSO links have been studied using different types of beams such as nonuniformly correlated Bessel beams (NUCBs) [179], Airy beams [180][181][182][183][184], OAM beams [185][186][187][188], and complex multi-vortex beams [189]. Since BG beams change from a Bessel structure to an annular ring, this is a disadvantage for long-range communication.…”

Section: Optical Communicationmentioning

confidence: 99%

Self-healing of structured light: a review

Shen

Pidishety

Nape

et al. 2022

J. Opt.

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Self-healing, a counterintuitive but significant effect in structured light, that granting a light field the ability to reconstruct itself after a partial obstruction placed in its propagation path. Here, we will give a comprehensive review of the history and development of self-healing effects, especially highlighting its importance in vector vortex beams carrying spin and orbital angular momenta. Moreover, an unified zoology of self-healing, structured light is proposed to unveil a deeper understanding of its physical mechanism and provide a bird's eye view on diverse forms of self-healing effects of different kinds of complex structured light. Finally, we outline the open challenges we are facing, potential opportunities and future trends for both fundamental physics and applications.

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Section: Optical Communicationmentioning

confidence: 99%

Self-healing of structured light: a review

Shen

Pidishety

Nape

et al. 2022

J. Opt.

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“…The attenuation for light fog, moderate fog, heavy fog, and clear conditions is 9, 16, 22, and 0.14 dB/km. [21][22][23][24] In FSO transmission, the variation in atmospheric pressure and temperature along propagation path induces turbulence effects. The gamma-gamma turbulence model is capable of predicting weak to strong turbulence accurately.…”

Section: Link Architecture Of Sdm-pdm-co-ofdm-based Fso Linkmentioning

confidence: 99%

“…17 The experimental demonstration of vector SDM to transmit 228-Gbit/s information over 80-cm FSO link using optical frequency comb is reported in Zhang et al 18 The work in Liang et al 19 reports four-channel hybrid WDM-SDM transmission in FSO link employing Laguerre-Gaussian (LG) and Hermite-Gaussian (HG) modes and nonreturn to zero (NRZ) modulation; 40-Gbit/s data transmission for 440-1200 m range for varying atmospheric conditions is achieved. A 100-Gbit/s hybrid orbital angular momentum (OAM) multiplexed-WDM FSO transmission for range varying from 500-3200 m is reported in Dutta et al 20 The work in Singh et al 21 reports 40-Gbit/s FSO transmission for range varying from 64 to 800 m by employing OAM multiplexing with NRZ signals. In another work, 22 120-Gbit/s FSO transmission for 150-300 m range by employing optical code division multiple access (OCDMA) and OAM multiplexing is reported.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of 400 Gbit/s hybrid space division multiplexing‐polarization division multiplexing‐coherent detection‐orthogonal frequency division multiplexing‐based free‐space optics transmission system

Pandi

Singh

Grover³

et al. 2022

Int J Communication

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Summary A high‐capacity free‐space optics‐based terrestrial communication link using spectral‐efficient space division multiplexing and polarization division multiplexing techniques has been proposed in this research work. Orthogonal frequency division multiplexing with the use of coherent detection has been proposed for the transmission of quadrature amplitude modulated high‐speed signals. Eight independent 50‐Gbit/s data streams are transported by two orthogonal polarization states (X and Y) of four distinct Hermite–Gaussian spatial modes to increase the transmission rate of the link to 400 Gbit/s over a single channel. Through numerical simulations, we report feasible transportation of 400‐Gbit/s information at 10 km under clear weather with faithful performance. Further, the impact of atmospheric scintillation and fog weather has been evaluated using simulations. The results report that the maximum range reduces to 6 km under clear weather in the presence of strong atmospheric scintillation. Moreover, the maximum range of 2000, 1700, and 1300 m is reported for light, moderate, and heavy fog conditions respectively.

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“…The 200 m free-space transmission distance is significantly less than the associated value of 25.5 km (25-km SMF + 500-m free-space) developed in our proposed converged system. M. Singh et al presented a 40-Gbit/s FSO transmission based on orbital angular momentum multiplexed beams 16 . Moreover, a radio over FSO link under harsh weather conditions employing mode-division multiplexing was presented 17 .…”

Section: Introductionmentioning

confidence: 99%

A two-way 224-Gbit/s PAM4-based fibre-FSO converged system

Tsai

et al. 2022

Sci Rep

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A two-way 224-Gbit/s four-level pulse amplitude modulation (PAM4)-based fibre-free-space optical (FSO) converged system through a 25-km single-mode fibre (SMF) transport with 500-m free-space transmission is successfully constructed, which adopts injection-locked vertical-cavity surface-emitting lasers with polarisation-multiplexing mechanism for a demonstration. Compared with one-way transmission, two-way transmission is an attractive architecture for fibre-FSO converged system. Two-way transmission over SMF transport with free-space transmission not only reduces the required number of fibres and the setups of free-space transmission, but also provides the advantage of capacity doubling. Incorporating dual-wavelength four-level pulse amplitude modulation (PAM4) modulation with polarisation-multiplexing mechanism, the transmission capacity of fibre-FSO converged system is significantly enhanced to 224 Gbit/s (56 Gbit/s PAM4/wavelength × 2-wavelength × 2-polarisation) for downlink/uplink transmission. Bit error rate and PAM4 eye diagrams (downstream/upstream) perform well over 25-km SMF transport with 500-m free-space transmission. This proposed two-way fibre-FSO converged system is a prominent one not only because of its development in the integration of fibre backbone with optical wireless extension, but also because of its advantage in two-way transmission for affording high downlink/uplink data rate with good transmission performance.

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Performance analysis of 40 Gb/s free space optics transmission based on orbital angular momentum multiplexed beams

Cited by 53 publications

References 31 publications

Self-healing of structured light: a review

Self-healing of structured light: a review

Performance analysis of 400 Gbit/s hybrid space division multiplexing‐polarization division multiplexing‐coherent detection‐orthogonal frequency division multiplexing‐based free‐space optics transmission system

A two-way 224-Gbit/s PAM4-based fibre-FSO converged system

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