Energy-Efficient VCSEL Array Using Power and Offset Allocation of Spatial Multiplexing in Graded-Index Multimode Fiber

Sheffi, Nir; Sadot, Dan

doi:10.1109/jlt.2017.2656238

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…The wide use of integrated lasers in optoelectronic devices is pushing for the development of simple and cost-effective fabrication for low power sources. [1][2][3] Vertical cavity surface emitting lasers (VCSEL) 4 are ideal candidates for this purpose. 5 A VCSEL is a planar microcavity formed by two dielectric mirrors embedding a gain medium opportunely engineered into nanopillars to provide lateral connement.…”

Section: Introductionmentioning

confidence: 99%

Lasing from dot-in-rod nanocrystals in planar polymer microcavities

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Lasing from dot-in-rod nanocrystals in planar polymer microcavities

et al. 2018

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“…Apart from wavelength [10], polarization [11] and time [12] multiplexing schemes, MDM enables multimode data transmission by multiplexing through a single optical channel. In MDM, modes can be excited through various mechanisms such as spatial light modulators [13], offset launch [14], high-speed VCSEL arrays [15] and photonic crystal fibers (PCF) [16]. Researchers have used four OAM beams (1 ±1 and 1 ±3) to transmit 400 Gbps data through an FSO link of 120 m in 2016 [17]; MDM-OFDM scheme to transmit 80 Gbps data through an FSO link of 50 km in 2017 [7]; and MDM-based polarisation phase shift key scheme to transmit 80 Gbps data through an FSO link of 90 km in 2020 [18].…”

Section: Introductionmentioning

confidence: 99%

Cost-Efficient Hybrid WDM-MDM-Ro-FSO System for Broadband Services in Hospitals

Liang¹,

Zhang

Nebhen

et al. 2021

Front. Phys.

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The expansion of high-speed communication needs due to explosive growth of subscribers each year has led the researchers to design the next generation communication systems which can cope with the current growing demand. Millimeter waves, operated within the range of 30 GHz to 300 GHz, can become potential carrier for delivering large amount of data. However, in hospital scenarios, these radio waves are subjected to strict regulations due to direct impact on patients’ health as well as high interference with other medical devices which again imposes critical challenge on patients. Thus, it is a challenge for the researchers to provide communication/broadband services for transmission of such sensitive biomedical sensor data in hospitals locations. Radio over Free space (Ro-FSO) systems may become the attractive solution to deliver millimeter waves over free space link with high speed. Further, to expand the capacity of Ro-FSO systems, mode division multiplexing (MDM) plays a vital role in addition to wavelength division multiplexing (WDM) scheme. In this work, we have demonstrated the MDM-WDM scheme to deliver four channels with each one having the capacity of 10 Gbps up-converted to 40 GHz over FSO link which is suitable for providing broadband and communication services within the hospital premises. Moreover, the proposed WDM-MDM-Ro-FSO link is evaluated under different fog conditions.

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