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University College London (UCL) has designed and tested a new type of optical receiver that is expected to significantly reduce the cost of fiber-to-the-home and connect every home directly to the global Internet
.
What is known as fiber-to-the-home (FTTH) usually only reaches the handover box and is nowhere near the end user
.
The so-called "last mile", the connection of home users to the global Internet through the handover box, is mostly made of copper cables, because optical receivers that can read optical signals are very expensive and difficult for many households to afford.
Even in countries such as Japan and South Korea, where FTTH technology is advanced, FTTH connections are less than 50%, and less than 1%
in the UK.
The main reason for limiting FTTH is the cost, to achieve it not only to spread the fiber optic cable to every home, but also to provide users with affordable optical
receivers.
The highly sensitive coherent optical receivers used in the core network are complex and expensive, and the new optical receivers developed by the UCL optical network team and other teams make true fiber-to-the-home a reality
.
Lead researcher Sezer Ökilinko, PhD from UCL's Department of Electronic and Electrical Engineering, said the new optical receiver could be produced cheaply and in large numbers while maintaining the quality of
the optical signal.
The current copper cable connected to the home, with an average data transmission rate of about 300 megabytes per second (Mb/s), will soon become a bottleneck restricting information transmission, and will reach 5 to 10Gb/s by 2025, and its technology can support a rate of 10Gb/s per second, making it a truly future technology
.
According to a paper published recently in the journal Lightwave Technology, the new fiber-optic receivers retain many of the advantages of traditional optical receivers, but are smaller, with only 75 to 80 percent of the original components, significantly reducing manufacturing and maintenance costs, and their sensitivity can match
existing networks.
University College London (UCL) has designed and tested a new type of optical receiver that is expected to significantly reduce the cost of fiber-to-the-home and connect every home directly to the global Internet
.
What is known as fiber-to-the-home (FTTH) usually only reaches the handover box and is nowhere near the end user
.
The so-called "last mile", the connection of home users to the global Internet through the handover box, is mostly made of copper cables, because optical receivers that can read optical signals are very expensive and difficult for many households to afford.
Even in countries such as Japan and South Korea, where FTTH technology is advanced, FTTH connections are less than 50%, and less than 1%
in the UK.
The main reason for limiting FTTH is the cost, to achieve it not only to spread the fiber optic cable to every home, but also to provide users with affordable optical
receivers.
The highly sensitive coherent optical receivers used in the core network are complex and expensive, and the new optical receivers developed by the UCL optical network team and other teams make true fiber-to-the-home a reality
.
Lead researcher Sezer Ökilinko, PhD from UCL's Department of Electronic and Electrical Engineering, said the new optical receiver could be produced cheaply and in large numbers while maintaining the quality of
the optical signal.
The current copper cable connected to the home, with an average data transmission rate of about 300 megabytes per second (Mb/s), will soon become a bottleneck restricting information transmission, and will reach 5 to 10Gb/s by 2025, and its technology can support a rate of 10Gb/s per second, making it a truly future technology
.
According to a paper published recently in the journal Lightwave Technology, the new fiber-optic receivers retain many of the advantages of traditional optical receivers, but are smaller, with only 75 to 80 percent of the original components, significantly reducing manufacturing and maintenance costs, and their sensitivity can match
existing networks.