Researchers from the Center for Molecular Spectroscopy and Dynamics (CMSD) increase the number of communication channels
Microprocessors play a pivotal role in computers and have steadily increased the speed of information processing over the past several decades. However, due to technical limitations such as heat generation due to integration, the processing speed of semiconductors has remained at several gigahertz (GHz) for the past decade. As a current alternative to this, many microprocessors are used in parallel, but the electrical connection between the processors is slow, creating a bottleneck for data transfer. To solve this problem, many studies have been conducted to merge processors by using optical signals which are several hundred times faster than electrical signals.
CHOI Wonshik, Associate Director of the CMSD, lead the research team that created an innovative device. The team discarded with the conventional method of periodically arranging the nano antennas. Instead, they devised disordered arrangement of the antennas to minimize redundancy between the antennas and enabled each antenna to function independently. As a result, the device can provide 40 times wider bandwidth than existing antennas periodically arranged. “We are proposing a new way to connect nanoscale microprocessors to ultra-high-speed optical communications,” commented Dr. Choi. The research will appear in the March edition of Nature Communications.
The team used surface plasmons to mediate optoelectronic signaling. At nano antennas, optical signals are converted to surface plasmons, which then propagate through metal surface as electric signals. The researchers randomly arranged the nano antennas, and the surface plasmons generated at each antenna underwent multiple scattering to minimize redundancy between the antennas. In this way, each of the antennas can be used independently, resulting in a substantial increase in the effective number of antennas to more than 40 times. An increase in the number of antennas means an increase in the number of multiple input channels in the MIMO communication, which leads to an increase in the information transmission bandwidth.
? Expected enhancement factor for channel number.
To exploit the benefit of disordered arrangement of antennas, the team had to resolve an innate problem. Random multiple scattering by disorderly arranged nano antennas is unpredictable, and cannot be used for information transfer without special measure. The researchers analyzed the patterns of multiple-scattered surface plasmons for various optical inputs and found a particular optical input signal that could send the desired signal to a particular microprocessor. The spatial light modulator was used to generate the identified optical input signal, and the surface plasmon could be controlled freely. “Using this,” offered Doctor Choi. “We proved that we can transmit signals to six different microprocessors at the same time and proved that optical images are converted into plasmons.”
Receive an email update when we add a new OPTICAL COMMUNICATIONS article.
The Latest on: Optical communications
via Google News
The Latest on: Optical communications
- Optical Sensing Device Consumption Market Research Report Analysis and Forecasts to 2023 on December 16, 2018 at 4:31 am
Information about the consumption (revenue and growth rate) of every product and the sale price over the projected duration The Optical Sensing Device Consumption market is segmented into National Def... […]
- New discovery improves use of optical tweezers on December 13, 2018 at 7:33 am
Optical tweezers were discovered in the late ... currently being published in the prestigious scientific journal Nature Communications, the technique will now be considerably easier to use. […]
- Reflex Photonics Launches 24-Lane Optical Generator and Switch on December 13, 2018 at 7:01 am
It offers 12 TX and 12 RX optical fiber (OM3) lanes that are accessible by three standard MPO interfaces. In generator mode, standard PRBS-31 signals can be generated and emitted at the TX output. The ... […]
- Hengtong Delivers 3,000km Submarine Optical Cable to Chile, Hosts a Ceremony to Celebrate Overseas 10,000km Delivery on December 13, 2018 at 3:56 am
To realize global connections, submarine cable plays a critical role in global ocean communication and energy interconnection. In the past five years, Hengtong has built a global-leading submarine opt... […]
- Does Yangtze Optical Fibre And Cable Joint Stock Limited Company’s (HKG:6869) Recent Track Record Look Strong? on December 12, 2018 at 8:28 pm
However, its return on assets (ROA) of 11% exceeds the HK Communications industry of 8.9%, indicating Yangtze Optical Fibre And Cable Limited has used its assets more efficiently. And finally ... […]
- ECI Debuts 1.2T Dual Channel Blade for New Age of Adaptive Optical Networking on December 12, 2018 at 5:16 am
The programmable-adaptive optical network approach enables optimal returns on ... ECI's ELASTIC solutions ensure open, future-proof, and secure communications. With ECI, customers have the luxury of c... […]
- Global Diffractive Optical Elements Market is Expected to Grow at a CAGR of 7.6% During the Forecast Period (2018-2026) - Persistence Market Research on December 12, 2018 at 5:01 am
optical sensor, communication, and others. In terms of value, the biomedical devices sub-segment is expected to capture the largest market share in the global diffractive optical elements market ... […]
- Reflex Photonics Launches a New and Unique 24-Lane Optical Generator and Switch to Support Optical System Designers on December 12, 2018 at 1:06 am
It offers 12 TX and 12 RX optical fiber (OM3) lanes that are accessible by 3 standard MPO interfaces. In generator mode, standard PRBS-31 signals can be generated and emitted at the TX output. The sti... […]
- Optical Ground Wire (OPGW) Market with Key Players, Overview Regional, Consumers and Buyers Analysis 2023 on December 11, 2018 at 11:03 am
The Global Optical Ground Wire (OPGW ... The cable is designed to be installed on transmission and distribution lines to carry voice, data and video communications, especially in lighting waveform mon... […]
via Bing News