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Technology Developed by Swedish Scientists Increases Optical Network Capacity by 10 Times Without Changing the Speed of Light.
A group of scientists has developed a technology capable of multiplying internet data transmission capacity by ten times, meaning internet speed will increase.
The innovation, created by researchers at Chalmers University of Technology in Sweden, has the potential to transform communication networks and bring positive impacts in areas such as medicine, holography, microscopy, and sustainability.
What Is the New Laser Amplifier
The center of this discovery is a new type of optical amplifier based on silicon nitride. This ceramic material is known for its thermal resistance and stability.
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It enables the manufacture of compact and durable devices with high energy efficiency.
The component is miniaturized and can be integrated into chips, expanding its use in various technological fields.
The main advantage lies in the bandwidth. Current amplifiers operate with a range of 30 nanometers.
The new device, however, reaches 300 nanometers, allowing ten times more data to pass through the same optical fiber—without needing to increase the speed of light.
This is made possible by the use of spiral waveguides, which provide longer optical paths in a reduced space.
How This Technology Works
The principle of operation follows the traditional model of stimulated emission, which is the basis of common lasers.
However, the new design introduces a different architecture capable of favoring the mixing of four waves.
This phenomenon is essential for amplifying optical signals without generating noise, ensuring quality and stability in transmission.
Another key point is the compatibility with the current infrastructure.
The technology can be used in existing optical networks without the need to replace or reconstruct cables. This reduces costs and accelerates the commercial adoption of the innovation.
Practical Applications and Direct Impact
Currently, the new amplifier operates in the range of 1,400 to 1,700 nanometers in the short-wave infrared spectrum. This range is ideal for telecommunications. However, scientists are already studying adapted versions for other wavelengths, including visible light (400 to 700 nm) and mid-infrared (2,000 to 4,000 nm). This would further expand its possibilities.
Among the expected uses are:
- Non-invasive medical diagnostics, with greater accuracy and without the use of toxic substances.
- Holography and high-resolution imaging, useful for medicine, research, and entertainment.
- Spectral analyses and advanced microscopy, essential for laboratories and quality control.
- High-capacity internet with a lower environmental impact.
Comparison with Current Systems
Current optical networks face capacity limitations due to the available amplifiers. To increase traffic, it would normally be necessary to install more cables or repeater stations. With this new technology, this can be avoided.
Energy efficiency also improves. As more data is transmitted using the same light pulses, energy consumption per bit decreases.
This can significantly reduce the energy expenditure of the internet and data centers, which are responsible for a large part of global electricity demand.
Sustainable Potential
The environmental impact of the technology is one of the most promising aspects. With greater capacity per channel, the required physical infrastructure can be smaller, which reduces the use of materials and the space needed for networks.
The durability of silicon nitride also decreases the disposal of components over time.
Another highlight is the support for green digitalization. Low-emission logistics systems, real-time environmental monitoring, and networks for smart cities can directly benefit from this innovation.
The new laser amplifier represents an important advancement for science and society.
Combining technical efficiency, low environmental impact, and broad applicability, the technology has the potential to redefine the course of the internet and various technological fields in the coming years.
Study published in the journal Nature.
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