Laser replaces solar power generation efficiency
A solar-powered laser enjoys far greater system simplicity, and benefits from a nearly eternal and free pump source. Overall, this study lights a way to take solar-powered lasers to new heights, with a clear blueprint for high-efficiency, space-ready solar lasers.
A solar-powered laser enjoys far greater system simplicity, and benefits from a nearly eternal and free pump source. Overall, this study lights a way to take solar-powered lasers to new heights, with a clear blueprint for high-efficiency, space-ready solar lasers.
Broadband sunlight can be converted into laser light by solar pumping, which can be a source of narrowband, collimated, rapidly pulsed radiation—with the possibility of extremely high brightness and intensity.
A solar-pumped laser (SPL) that converts sunlight directly into a coherent and intense laser beam generally requires a large concentrating lens and precise solar tracking, thereby limiting its .
The laser is a CW high-energy Yb-doped fiber laser emitting at a center wavelength of 1075 nm with ∼1 m 2 of effective beam area. For 20 kW illumination of a solar panel having 0.6 m 2 of area, optical simulations and thermal simulations indicate an electrical output power of 3000 W at a panel temperature of 550 K.
Recently, a PVLPC has demonstrated the highest efficiency for any photovoltaic converter, i.e., 68.9% at a laser illumination of 858 nm. This review begins with a brief overview of the functionalities of PBL systems and the critical requirements imposed to PVLPCs.
6 FAQs about [Laser replaces solar power generation efficiency]
What is a 20 kW solar panel laser?
The laser is a CW high-energy Yb-doped fiber laser emitting at a center wavelength of 1075 nm with ∼1 m 2 of effective beam area. For 20 kW illumination of a solar panel having 0.6 m 2 of area, optical simulations and thermal simulations indicate an electrical output power of 3000 W at a panel temperature of 550 K.
How efficient is a photovoltaic cell based on laser light?
Researchers at Fraunhofer ISE have achieved a record conversion efficiency of 68.9 % for a III-V semiconductor photovoltaic cell based on gallium arsenide exposed to laser light of 858 nanometers. This is the highest efficiency achieved to date for the conversion of light into electricity.
How efficient is a solar-pumped laser?
A novel three Ce:Nd:YAG rod solar-pumped laser achieves 4.64% solar-to-laser energy conversion efficiency. FIGURE 1. Ce:Nd:YAG laser design.
Can sunlight be converted into laser light?
Broadband sunlight can be converted into laser light by solar pumping, which can be a source of narrowband, collimated, rapidly pulsed radiation—with the possibility of extremely high brightness and intensity.
What is a solar pumped laser?
Solar-pumped lasers (SPLs), which convert sunlight into laser radiation, are of interest for applications, such as solar hydrogen generation, remote area telecommunications, space propulsion, space solar power systems, and high-efficiency photovoltaic energy conversion 1, 2, 3, 4, 5, 6, 7, 8.
Can a photovoltaic device be used with laser light?
In addition to the classical applications for solar cells on roofs and open spaces, photovoltaic devices can also be used with laser light for efficient power transmission.
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