Technology update on patent and development trend of power over fiber: a critical review and future prospects

Putra, Eric Pradana; Theivindran, Rayvathi; Hasnul, Haziq; Lee, Hui Jing; Ker, Pin Jern; Jamaludin, M. Z.; Awang, Ramlah; Yusof, Farah Aniza Mohd

doi:10.1117/1.jpe.13.011001

Cited by 11 publications

(7 citation statements)

References 95 publications

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“…While research on laser power converter devices continues to progress in many groups [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], our present study has expanded the possibilities for stable and reliable power-over-fiber or power-beaming devices that are obtained using vertical multijunction power converters. The multijunction design enables practical optimal loads and tailored output voltages.…”

Section: Discussionmentioning

confidence: 99%

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

Fafard,

Masson

2024

Photonics

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Recent developments in long wavelength and cryogenic laser power converters have unlocked record performances in both areas. Here, devices for an optical input at ~1470 nm are studied for cryogenic applications, combining these cryogenic and long-wavelength attributes. Multijunction laser power converters are demonstrated to have a high-efficiency operation at 77 K. The photovoltaic-power-converting III-V semiconductor devices are designed with InGaAs-absorbing layers, here with 10 thin subcells (PT10), connected by transparent tunnel junctions. Unprecedented conversion efficiencies of up to 67.5% are measured at liquid nitrogen temperatures with an output power of Pmpp = 1.35 W at an average optical input intensity of ~62 W/cm2. A remarkably low bandgap voltage offset value of Woc~50 mV is obtained at an average optical input intensity of ~31 W/cm2.

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Section: Discussionmentioning

confidence: 99%

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

Fafard,

Masson

2024

Photonics

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“…In the past decade, optical fiber technology has received extensive attention due to the vast range of applications besides high-speed telecommunication [4]. Power over Fiber (PoF) is an emerging technique that employs optical fibers to supply electrical power [5]. PoF is a system in which a high-power laser source transmits optical power on a single mode fiber (SMF) or a multimode fiber (MMF).…”

Section: Introductionmentioning

confidence: 99%

“…However, the downside of PoF systems, compared to the traditional copper wire systems, is the lower power transmission efficiency. An overall maximum system efficiency of ~25% has been achieved with PoF systems versus 98% efficiency in conventional power systems [5]. However, optical fibers provide several more benefits compared with conventional power transmission.…”

Section: Introductionmentioning

confidence: 99%

“…In [5] authors present a summary of the different PoF experiments conducted and their respective applications researched from 2019 to 2022. However, there are certain studies that were not fully analyzed, such as inability to transmit power over long distances, high cost, limited wavelengths, and low overall optical to electrical conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Experimental demonstration of power over fiber for optical communication system

Aveta,

Basnet

2024

Optical Fibers and Sensors for Medical Diagnostics, Treatment, and Environmental Applications XXIV

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Power-over-fiber (PoF) is a novel power transmission technology that uses optical fibers, instead of the traditional copper wires, to deliver electrical power to feed remote sensors or electrical devices. Research on the PoF systems has been receiving extensive attention due to the advantages of fiber optic systems compared to the conventional power supply systems. Optical fibers are less bulky and lightweight, robust to electromagnetic interference (EMI) and electric sparks, resistant to corrosion and to extreme weather. Optical fiber installation is less susceptible to explosive and hazardous environments and presents a minimal security risk. Moreover, a single optical fiber can simultaneously transmit highspeed data and deliver electrical power to remote places. This paper experimentally demonstrates a PoF system using offthe-shelf components to feed microelectronics for low-power applications. The optical system consists of a 1550nm Pigtailed Laser Diode, an InGaAs photodetector for the optical to electrical conversion, and both Single-Mode (SM) and Multi-Mode (MM) optical fibers are tested. Experimental results show that data signal and power signal can be successfully transmitted simultaneously using an optical communication link. Analysis of the electrical-to-optical (E/O) conversion efficiency of the laser source, optical-to-optical (O/O) efficiency of the optical fibers, and optical-to-electrical (O/E) conversion efficiency of the receiver are also presented. Moreover, the System Energy Efficiency (SEE) is studied, and the effects of signal data-rate on the SEE are investigated.

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“…Building on these advancements, in 2022, E. P. Putra, R. Theivindran, and H. Hasnul proposed the use of optical fibers as a transmission medium for power distribution instead of copper wires, considering recent developments in Power over Fiber (PoF) technology. Research indicates that PoF technology has gained significant momentum over the past decade [24]. Based on these developments, we have designed an audio transmission system.…”

Section: System Introductionmentioning

confidence: 99%

Design and Research of Laser Power Converter (LPC) for Passive Optical Fiber Audio Transmission System Terminal

Zhou,

Guan,

et al. 2023

Photonics

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In environments like coal mines and oil wells, electrical equipment carries the risk of disasters such as underground fires and methane gas explosions. However, communication equipment is essential for work. Our team has developed a long-range (approximately 25 km) audio transmission system that operates without the need for terminal power sources, thereby eliminating the risk of electrical sparks. This system leverages the reliability of optical fiber and employs a 1550 nm laser for analog audio transmission. After traveling through 25 km of optical fiber, the signal is converted back into electrical energy using a custom-designed Laser Power Converter (LPC). The optical fiber’s carrying capacity imposes limits on the light signal intensity, which, in turn, affects the signal transmission distance. To enable long-distance transmission, we have carefully chosen the optical wavelength with minimal loss. We observed that different LPC structures operating within the same wavelength band have an impact on the audio quality at the terminal. By comparing their characteristics, we have identified the key factors influencing audio output. The optimal LPC allows audio transmission over 25 km, with an output exceeding 12 mVrms.

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Technology update on patent and development trend of power over fiber: a critical review and future prospects

Cited by 11 publications

References 95 publications

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

67.5% Efficient InP-Based Laser Power Converters at 1470 nm at 77 K

Experimental demonstration of power over fiber for optical communication system

Design and Research of Laser Power Converter (LPC) for Passive Optical Fiber Audio Transmission System Terminal

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