In-Service Monitoring of PON Access Networks With Powerline Independent Devices

Roeger, M.; Hiba, B.; Hehmann, J.; Straub, Michael; Schmuck, H.; Hedrich, Matthias; Pfeiffer, Thomas; Koos, C.; Leuthold, Juerg; Freude, W.

doi:10.1364/jocn.6.001018

Cited by 9 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As in high-voltage and high EMI environments [4], [5], to optically power remote antenna units [6]- [9], in defense applications [10], for temperature measurements with optical fiber pyrometers in hazardous environments [11] or to feed a video surveillance system [12], but for mostly applied to a single remote sensor. PoF is also used to monitor and control the position of fiber optic connectors in passive optical networks (PONs) [13], in-service PON monitoring [14], as well as a solution for powering remote nodes for measurements of turbidity and acoustic in seafloor [15]. Some PoF designs include either multiple sensor feeding capabilities [16]- [18] or are able to provide a feedback data communication link to the PoF transmitter [19].…”

Section: Introductionmentioning

confidence: 99%

Smart Remote Nodes Fed by Power Over Fiber in Internet of Things Applications

2019

View full text Add to dashboard Cite

Smart IoT solutions integrated into power grid stations are important due to their high economic and social value. Power over fiber technology to remotely feeding sensors and control electronics is a good choice in these environments of high electromagnetic interference. A sensing system design for magnetic field monitoring, fire and temperature/presence detection, and remotely fed by optical means is discussed. This design includes two types of nodes, smart and passive. Smart remote nodes have an energy manager to provide power on demand. Asymmetric splitting is proposed to optimize power distribution. Some tests on remote node power consumption, feeding, sensing, and centralized monitoring in one type of those nodes are successfully performed and reported.

show abstract

Section: Introductionmentioning

confidence: 99%

Smart Remote Nodes Fed by Power Over Fiber in Internet of Things Applications

2019

View full text Add to dashboard Cite

show abstract

“…The sensor worked at a sampling frequency of 200 Hz and transmitted 16-bit data via the MMF. Additionally, M. Roeger et al used a 2.2 mW optical power input to drive a microelectromechanical system (MEMS) optical switch through a single-mode fiber (SMF) [14]. The safety limit of optical power for optical fiber communication systems installed in public areas is specified to be 115 mW by the International Electrotechnical Commission (IEC) [15].…”

Section: Introductionmentioning

confidence: 99%

Power-Over-Fiber System With Intermittent Operation Based on Capacitor Voltage Estimation for High-Efficiency Energy Charging

Kawano,

Koyama,

Kuroda

et al. 2024

IEEE Access

View full text Add to dashboard Cite

We propose a power-over-fiber system with a new photovoltaic converter voltage control technology consisting of intermittent operation of a light source based on capacitor voltage estimation to achieve high energy efficiency. This efficiency is made possible by ensuring the photovoltaic converter voltage stays within an appropriate range. However, detecting and controlling the voltage on the photovoltaic converter side would waste power. In our system, a controller on the light source side estimates the voltage of photovoltaic converter side from our circuit model and controls the photovoltaic converter voltage by controlling light source activation/deactivation. Therefore, it is possible to maintain high photoelectric conversion efficiency without wasting power on the photovoltaic converter side. We show that this method can significantly improve energy efficiency from 11.0% to 22.4% compared to a method that controls the voltage on the photovoltaic converter side. We also demonstrate that an optical switch with a power consumption of 130 mW can be driven with 5-mW optical input. Our power-over-fiber system is practical because its optical power is low and safe enough to be used in existing optical access networks.INDEX TERMS Power-over-fiber, single-mode fiber, intermittent operation, photoelectric conversion efficiency, photovoltaic converter.

show abstract

“…PoF is a good technique to send energy to distant points because the optical fiber has low weight and attenuation, is safe in places with high explosion risks, is immune to electromagnetic interference, and has good galvanic isolation. Therefore, this technology is useful in hazardous areas with high voltage and high electromagnetic activity [1], to feed medical devices [2] and sensors [3,4], or to monitor passive optical networks [5], among others. One key parameter in PoF systems is the overall energy efficiency, which is typically no more than 10% electrical to electrical for energy delivery to hundreds of meters on multimode (MM) fibers [6] or double-clad fibers [7].…”

Section: Introductionmentioning

confidence: 99%

Downtaper on Multimode Fibers towards Sustainable Power over Fiber Systems

et al. 2023

View full text Add to dashboard Cite

This paper presents a transition taper for coupling light between optical fibers with different geometries and refractive index profiles used in Power over Fiber (PoF) systems. Global energy efficiency and costs are critical parameters when delivering high power to remote areas. High-power lasers have maximum coupling for large core fibers, while widespread multimode optical (OM1) fibers used in optical communications are cheaper. We study the optical losses between large core fibers (200 µm) and OM1 fibers (62.5 µm) theoretically and experimentally. We demonstrate that improvements of 2 dB can be obtained by adding the new tapered structure to the system, compared to the direct splice between both fibers. There is good agreement between measured and calculated loss values using a new Gaussian loss model to describe splices between tapered and straight fibers. The fabrication of the transition taper is also described. We also measure the numerical aperture (NA) changes in the downtaper zone and demonstrate that the lower the NA of the input light, the higher the efficiency improvement.

show abstract

In-Service Monitoring of PON Access Networks With Powerline Independent Devices

Cited by 9 publications

References 9 publications

Smart Remote Nodes Fed by Power Over Fiber in Internet of Things Applications

Smart Remote Nodes Fed by Power Over Fiber in Internet of Things Applications

Power-Over-Fiber System With Intermittent Operation Based on Capacitor Voltage Estimation for High-Efficiency Energy Charging

Downtaper on Multimode Fibers towards Sustainable Power over Fiber Systems

Contact Info

Product

Resources

About