Developing clean energy has become one of the most important issues in the 21st century in order to cope with the global climate problem and solve the energy crisis.
At the same time, with the development of artificial intelligence and communication technology, people are faced with more data processing, and the demand for electricity is expected to surge in the coming years. Given the ability of fusion technology to generate electricity on a large scale, consistently and steadily, human demand for fusion energy is growing rapidly.
The Fusion Industry Association reported that as of July 2023, 43 companies worldwide were researching nuclear fusion, attracting a total investment of $6.2 billion, an increase of $1.4 billion from 2022.1
Japan released its first national strategy for fusion energy in April 2024, indicating its goal of commercializing fusion technology by around 2050 and supporting start-ups and other businesses to enter the field.
The United States and the United Kingdom have also developed national fusion strategies to access key technologies. The United States Department of Energy has taken the lead in providing subsidies to relevant companies and promoting public-private research partnerships.
In November 2022, the US fusion startup Blue Laser Fusion (BLF) was founded. The company is headquartered in California and is led by Shuji Nakamura, a professor at the University of California, Santa Barbara, who won the 2014 Nobel Prize in Physics.
Instead of using magnetic confinement, which is a more mature traditional technology for fusion reactions, BLF has taken a completely different path.
The company has developed a new high-power laser technology for fusion that has the advantage of enabling clean energy generation at high repetition rates and high power.
So what is unique about BLF's pathway to fusion power generation?
Until recently, efforts to commercialize fusion have focused on an alternative approach called magnetic confinement. In this process, fuel is continuously heated to 100 million degrees Celsius or more until it is converted to plasma, which is then confined using a magnetic field.
In the past two years, more companies have begun to investigate laser fusion since the Lawrence Livermore National Laboratory in the United States successfully created a net energy output using the laser method.
BLF is using laser fusion as a technology to realize the world's first nuclear fusion for grid energy production.
The company's process consists of an inertial confinement fusion reactor integrated with a new high-power pulsed laser. The reactor, which is the heart of the production fusion system, utilizes a proprietary pulsed energy laser with a repetition frequency of up to 10Hz.
In the company's method, "the laser light is reflected by opposing mirrors in a vacuum chamber, which amplifies the light," according to the BLF's official website. The technique is used in gravitational wave detectors to detect tiny distortions in space.
Shuji Nakamura told the press, "This is an unprecedented method in the world, and the advantage of using a vacuum is that no heat is generated."
Additionally, BLF plans to use a safe hydrogen boron fuel called HB11 for sustainable and environmentally friendly operation.
"HB11 is the perfect fuel for fusion, producing safe helium. It contains no harmful neutrons or tritium, is not radioactive, and is a naturally abundant mineral compared to conventional fusion technology." Hiroaki Ohta, BLF's chief technology officer, told the press .
Thus, it seems that BLF is expected to utilize laser fusion in the future to provide huge amounts of clean power to the civilian power grid.
According to public information, it is working to solve the problem of not being able to sustainably extract energy from laser-ignited fusion, and has already filed more than 200 patents.
BLF established a subsidiary in Japan in February 2024 to collaborate with research institutions such as Osaka University in Japan and other companies.
The company raised a total of $25 million in its first round of funding from two of Japan's top venture capital firms: the JAFCO Group and the SPARX Group.
More recently, BLF received multi-million dollar investments from ITOCHU Corporation and Softbank. These two high-profile firms are the first strategic investors from the Japanese private sector in BLF, which aims to realize the commercial viability of the technology around 2030.
With the success of the seed round, BLF will expand its R&D operations in the Santa Barbara area of the United States and Tokyo to develop its commercial reactor prototype.
The company is spending approximately 400 million yen (approximately Rs. 19.3 million based on real-time exchange rates) to establish the necessary equipment at Osaka University to begin initial experiments by the end of 2024.
BLF plans to complete the first prototype in 2025 and demonstrate a commercially viable fusion reactor in 2030.
Countries such as the U.S. and Japan have made nuclear fusion a key technology in their energy strategies, and the involvement of this Nobel Prize winner in the field of nuclear fusion and the support of substantial funding are helping to propel the field of nuclea
