Recent Advancement in Power-over-Fiber Technologies

Matsuura, Motoharu

doi:10.3390/photonics8080335

Cited by 43 publications

(35 citation statements)

References 27 publications

(34 reference statements)

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“…A high-power laser diode (HPLD) generates a high-power light, i.e., optical power signal, which is transmitted through an optical fiber link. The optical power is then converted into electrical power by a photovoltaic power converter (PPC), located at a remote station hundreds of meters away from the HPLD location [ 39 , 40 ].…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…The selected wavelength might impact on the total fiber link attenuation since shorter-wavelength results in a higher power transmission loss. Therefore, the optical link distance must be carefully evaluated in order to determine the most suitable wavelength range [ 40 ]. In addition, the HPLD output power is determined by the E/O conversion efficiency (

) which can be written as:

where

is expressed as percentage,

is the HPLD output optical power, and

is the input electrical power.…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…In addition, the HPLD output power is determined by the E/O conversion efficiency (

) which can be written as:

where

is expressed as percentage,

is the HPLD output optical power, and

is the input electrical power. The HPLD conversion efficiency typically ranges from 30% to 50% [ 40 ].…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…In this context, MMFs have been widely employed in PoF systems due to the large core diameter (typically from 50 to 200

m) and compatibility with the HPLD wavelength bands [ 43 , 44 , 45 , 46 ]. On the other hand, single-mode fibers (SMFs), which are frequently employed in conventional high-data-rate transmission systems, may not be suitable to transmit high-power light due to its small core diameter (typically from 8 to 10

m), which gives rise to critical damage to the fiber caused by the extremely high power density [ 40 ]. Other fiber types, such as double-clad fibers (DCFs) and multicore fibers (MCFs), have also been employed to enable simultaneous power and data transmission [ 41 , 47 , 48 ].…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…We have used a commercially available PPC (YCH-L300) from MH GoPower, which presents approximately 30% conversion efficiency and offers FC connectorization. However, the extreme high optical power density might cause damage to optical fiber connections, limiting the transmitted optical power [ 40 ]. Therefore, at the PoF reception, the light from the optical fiber was directly launched to the PPC input, so that the laser beam can illuminate all the PPC cell sectors, increasing the conversion efficiency.…”

Section: Optically-powered Wireless Sensor Nodes Implementationmentioning

confidence: 99%

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Optically-Powered Wireless Sensor Nodes towards Industrial Internet of Things

Souza

Neto

Lima

et al. 2021

Sensors

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We report the experimental implementation of optically-powered wireless sensor nodes based on the power-over-fiber (PoF) technology, aiming at Industrial Internet of Things (IIoT) applications. This technique employs optical fibers to transmit power and is proposed as a solution to address the hazardous industrial environment challenges, e.g., electromagnetic interference and extreme temperatures. The proposed approach enables two different IIoT scenarios, in which wireless transmitter (TX) and receiver (RX) nodes are powered by a PoF system, enabling local and remote temperature data monitoring, with the purpose of achieving an intelligent and reliable process management in industrial production lines. In addition, the system performance is investigated as a function of the delivered electrical power and power transmission efficiency (PTE), which is the primary performance metric of a PoF system. We report 1.4 W electrical power deliver with PTE = 24%. Furthermore, we carry out a voltage stability analysis, demonstrating that the PoF system is capable of delivering stable voltage to a wide range of applications. Finally, we present a comparison of temperature measurements between the proposed approach and a conventional industrial programmable logic controller (PLC). The obtained results demonstrate that PoF might be considered as a potential technology to power and enhance the energy efficiency of IIoT sensing systems.

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Section: Power-over-fiber (Pof)mentioning

confidence: 99%

) which can be written as:

where

is expressed as percentage,

is the HPLD output optical power, and

is the input electrical power.…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…In addition, the HPLD output power is determined by the E/O conversion efficiency (

) which can be written as:

where

is expressed as percentage,

is the HPLD output optical power, and

is the input electrical power. The HPLD conversion efficiency typically ranges from 30% to 50% [ 40 ].…”

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

“…In this context, MMFs have been widely employed in PoF systems due to the large core diameter (typically from 50 to 200

Section: Power-over-fiber (Pof)mentioning

confidence: 99%

Section: Optically-powered Wireless Sensor Nodes Implementationmentioning

confidence: 99%

See 3 more Smart Citations

Optically-Powered Wireless Sensor Nodes towards Industrial Internet of Things

Souza

Neto

Lima

et al. 2021

Sensors

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Measuring the device‐level EQE of multi‐junction photonic power converters

Schachtner,

Beattie,

Reichmuth

et al. 2024

Progress in Photovoltaics

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Multi‐junction photonic power converters (PPCs) are photovoltaic cells used in photonic power transmission systems that convert monochromatic light to electricity at enhanced output voltages. The junctions of a multi‐junction PPC have overlapping spectral responsivity, which poses a unique challenge for spectrally resolved external quantum efficiency (EQE) measurements. In this work, we present a novel EQE measurement technique based on a wavelength‐tunable laser system and characterize the differential multi‐junction device‐level EQE (dEQEMJ) as a function of the monochromatic irradiance over seven orders of magnitude. The irradiance‐dependent measurements reveal three distinct irradiance regimes with different dEQEMJ. For the experimentally studied 2‐junction GaAs‐based device, at medium irradiance with photocurrent densities between 0.3 and 90 mA/cm2, dEQEMJ is independent of irradiance and follows the expected EQE of the current‐limiting subcell across all wavelengths. At higher irradiance, nonlinear device response is observed and attributed to luminescent coupling between the subcells. At lower irradiances, namely, in the range of conventional EQE measurement systems, nonlinear effects appear, which mimic luminescent coupling behavior but are instead attributed to finite shunt resistance artifacts that artificially inflate dEQEMJ. The results demonstrate the importance of measuring the device‐level dEQEMJ in the relevant irradiance regime. We propose that device‐level measurements in the finite shunt artifact regime at low monochromatic irradiance should be avoided.

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