Latest news with #NationalInstituteofAdvancedIndustrialScienceandTechnology
Yahoo
06-06-2025
- Science
- Yahoo
IEEE Study Describes Polymer Waveguides for Reliable, High-Capacity Optical Communication
Researchers discover that glass-epoxy-based waveguides have characteristics ideal for transmitting optical signals in co-packaged optics PISCATAWAY, N.J., June 6, 2025 /PRNewswire/ -- Co-packaged optics (CPO) technology can integrate photonic integrated circuits (PICs) with electronic integrated circuits like CPUs and GPUs on a single platform. This advanced technology has immense potential to improve data transmission efficiency within data centers and high-performance computing environments. CPO systems require an integrated or external laser source for operation. While integrated laser sources allow for dense CPO integration, ensuring consistent reliability can be challenging, which may affect overall system robustness. The use of external laser sources (ELS) in CPO, in comparison, offers improved system reliability. Single-mode polymer waveguides are crucial components of many PICs, where they help couple light from an external laser to the PIC. They are cost-effective, mechanically flexible, and highly compatible, showing significant potential for use in CPO systems utilizing ELS. Now, a team of researchers led by Dr. Satoshi Suda from the National Institute of Advanced Industrial Science and Technology, Japan have tested the stability and reliability of single-mode polymer waveguides fabricated on glass-epoxy substrates. Their findings published in IEEE Journal of Lightwave Technology, suggest that these polymer waveguides have a range of desirable characteristics that make them a promising addition to future CPO systems. The team fabricated 11-mm-long polymer waveguides using direct laser writing on FR4 glass-epoxy substrates. The waveguides had well-controlled core dimensions (9.0 µm × 7.0 µm), suitable for matching standard single-mode fibers. They exhibited low polarization-dependent loss and low differential group delay, along with excellent uniformity across eight fabricated samples. The researchers found that the fabricated waveguides possess consistent insertion loss and mode field dimensions. In addition, they exhibited desirable polarization extinction ratio (a critical metric that reflects the ability of waveguides to maintain a specific polarization for the signals they transmit). The testing of waveguides under high-power conditions revealed that the waveguides were resistant to power degradation even after 6 hours of continuous use, while showing minimal heating concerns. The ELS used in these experiments, which enabled stable operation for six hours, was provided by Furukawa Electric Co., Ltd. "These findings demonstrate the strong potential of polymer waveguides for practical deployment in demanding CPO systems, providing a reliable foundation for next-generation high-density and high-capacity optical communication technologies," concludes Dr. Suda. Reference Title of original paper: High-Power Stability and Reliability of Polymer Optical Waveguide for Co-Packaged Optics Journal: IEEE Journal of Lightwave Technology DOI: 10.1109/JLT.2025.3543339 Contact: Kristen Amoroso +1(732) 562-6694 396307@ View original content to download multimedia: SOURCE IEEE Photonics Society
Japan Times
20-05-2025
- Business
- Japan Times
Singapore envoy eyes stronger cyber and digital links with Japan
Cybersecurity and digitalization are among five key areas where Japan and Singapore plan to take relations to fresh highs next year as the partners look to step up cooperation on emerging technologies such as quantum computing, according to the city-state's envoy to Tokyo. 'When it comes to cybersecurity, there are so many different areas that you can look at,' Ambassador Ong Eng Chuan said in an interview with The Japan Times ahead of the two countries' 60th anniversary of diplomatic relations in 2026. 'While today is artificial intelligence, tomorrow we're looking at the possibility of quantum technology, taking it a step further,' he said, noting that post-quantum cryptography — the development cryptographic systems designed to be secure against both quantum and classical computers — 'is going to create a whole new set of challenges and opportunities.' Ong said Singapore hopes to 'collaborate closely' with Japan in this area 'because the country is already developing that technical capability. He pointed to the work being done by Japan's National Institute of Advanced Industrial Science and Technology, which is working with Intel on a next-general silicon quantum computer. The ambassador said Japan and Singapore plan to use the 2026 anniversary 'as a benchmark to upgrade our relationship,' noting that the partners also aim to deepen collaboration in the areas of trade and the economy, sustainability and climate change, defense and security and people-to-people exchanges. One important and overlooked area of cooperation is how Singapore, which has a Ministry of Digital Development and Information, is often seen as a model for Tokyo's transition to a digital economy, especially as Japan continues to lag behind others, ranking 31st in an international comparison of digital competitiveness conducted last year. Singapore, which ranked No. 1 in the same survey, has been working for at least a decade to become a "smart nation" by leveraging technology to improve different areas such as government, infrastructure and the economy. That drive is supported by a large contingent of government IT engineers, compared with that of Japan — a country of over 120 million people as opposed to Singapore's 6 million. This includes digitalizing government services, with Singaporeans now using apps such as SingPass or LifeSG that enable them to not only have a digital ID card but also interact with the government electronically and access services such as applying for passports, birth certificates and driver licenses from anywhere. Japan, which has sent teams to examine Singapore's approach, is believed to have taken inspiration from the city-state when it began integrating its health insurance card into the My Number Card last year. 'Japan is a very advanced country when it comes to technology, but it's more in terms of the implementation that I think we can share a little bit of our experience,' Ong said. 'So maybe once there is more collaboration in that area, more examples of successes in Singapore, people may be more open to see the conveniences that such technologies can bring to their lives,' he added. 'And I think once that happens, Japan will be an even more efficient country.'
18-05-2025
- Business
Ishiba to Revamp Strategy to Industrialize Quantum Tech
Tsukuba, Ibaraki Pref., May 18 (Jiji Press)--Japanese Prime Minister Shigeru Ishiba said Sunday that his government will "drastically strengthen" its strategy to industrialize quantum technology, amid growing international competition in this field. Positioning this year as "the first year of quantum industrialization," Ishiba indicated that the government will promote support for related startups and human resource development. Quantum technology is "expected to become a new industrial pillar of our country, and also important for economic security," the prime minister told reporters in the city of Tsukuba, Ibaraki Prefecture, east of Tokyo. While in the city, Ishiba visited the Global Research and Development Center for Business by Quantum-AI technology under the National Institute of Advanced Industrial Science and Technology, or AIST. He inspected quantum computing research and interacted with researchers there. END [Copyright The Jiji Press, Ltd.]
13-05-2025
- Science
Japan's Meter, Kilogram Prototypes Shown to Press
News from Japan Society May 13, 2025 22:14 (JST) Tsukuba, Ibaraki Pref., May 13 (Jiji Press)--The National Institute of Advanced Industrial Science and Technology, or AIST, showed Japan's meter and kilogram prototypes to the press on Monday, ahead of the 150th anniversary later this month of the conclusion of the Meter Convention in 1875. Near the end of the 18th century, 1 meter was defined as one-10 millionth of the distance from the equator to the North Pole along a meridian through Paris and 1 kilogram as the mass of a liter of water. International meter and kilogram prototypes made of platinum-iridium alloy were created after the convention that standardized the units of measurement was concluded. Copies of them were delivered to Japan in 1890. With the advance of technologies making it impossible to ignore the metal prototype's deterioration over time as a margin of error, the meter standard was changed from the metal prototype to one employing the wavelength of light in 1960. A method using the distance light travels in a certain amount of time was adopted to define 1 meter in 1983. The kilogram standard was updated to one using the Planck constant, a minimum unit of light energy, in 2019. [Copyright The Jiji Press, Ltd.] Jiji Press
