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Recently, Professor Tian Zhen's team at Tianjin University achieved a significant breakthrough in the field of photoacoustic remote sensing microscopy technology, successfully developing a new non-destructive testing method. This technology utilizes BWT's high-power femtosecond laser as the key light source, further optimizing the solution to the internal flaw detection limitation problem in inverted chip. It enhances the overall detection performance of the system, opening a new chapter in the development of non-destructive testing technology.   1. Taking the Lead, Boosting the Leap of Non-Destructive Testing Technology   Photoacoustic remote sensing microscopy technology, proposed in recent years as a promising microscopic detection method, enables large field-of-view, rapid, non-destructive imaging of internal structures in inverted chip models, which is of great significance for the detection of high-value objects such as chips and biological tissues.   Researchers explained that traditional microscopy techniques often face the dilemma of either limited imaging depth or resolution. Either the imaging depth is insufficient, such as in OCT, or the resolution is not high, and there is contact involved. Photoacoustic remote sensing microscopy technology can significantly address these pain points, achieving characteristics such as large imaging depth, high resolution, and non-contact imaging. It holds high value in medical applications.   In the study, Tianjin University utilized BWT's 20-watt infrared femtosecond laser as the femtosecond laser source, providing stable and high-quality laser pulses for photoacoustic remote sensing microscopy. The laser outputs with a central wavelength of 1030 nm, an adjustable repetition rate of 0.1-1 MHz, and an adjustable pulse width of 300 fs-10 ps (the pulse width used in the experiment is approximately 1.2 ps).   After collimation and beam expansion, the laser pulse was combined with the continuous probing light emitted by a super-radiating light-emitting diode with a wavelength of 1310 nm. It then entered the optical scanning system, consisting of a scanning mirror system, an objective lens, and a three-dimensional electric displacement stage, for large field-of-view rapid scanning imaging. During imaging, the inverted chip is in an inverted state, where the internal metal structure is not visible under bright-field microscopy, as shown in Figure 1 (b).   Figure 1: Schematic diagram of photoacoustic remote sensing system for non-destructive inspection of inverted chips.   The photoacoustic remote sensing microscopy system can perform large field-of-view optical-mechanical joint scanning imaging of inverted chip models. Its working principle is to first obtain independent small field-of-view images through "mosaic scanning", then use the electric displacement stage to move the chip sample to the next adjacent position, and finally stitch these small range images to form a complete large field-of-view image, as shown in Figure 2. The experimental results fully demonstrate the potential of photoacoustic remote sensing microscopy for non-destructive testing of chips in industrial environments.   Figure 2: Optical scanning imaging results (scale: 300 μm).   The successful application of this technology will significantly improve the overall detection performance of the system and is expected to become an important tool for non-destructive testing in the medical field, providing strong support for the early detection and precise treatment of diseases.   2. Femtosecond Laser: A Powerful Engine for Scientific Innovation   BWT's high-power femtosecond laser, with outstanding stability, adjustable pulse width, and good beam quality, provides strong support for scientific research fields such as photoacoustic remote sensing microscopy technology.   This 20-watt infrared femtosecond laser, benefiting from its all-fiber structure and industrial integration design, demonstrates excellent stability and processing capabilities. Its features include long-term continuous processing stability, adjustable pulse width, repetition rate, and adjustable pulse energy, enabling pulse time-domain control within 300 femtoseconds, effectively reducing the thermal impact on material processing and achieving true "cold" processing.   Bwt's 20-watt Infrared Femtosecond Laser   This laser is widely favored in the field of organic film and flexible material processing, and it has also attracted much attention in the domestic ultrafast laser market. It can not only handle flexible and fragile materials such as OLED, glass, ceramics, sapphire, diode materials, and alloy metals, but also plays an important role in micro-nano processing, precision marking, and other precision processing applications.   In the realm of ultrafast lasers, small-scale precision is where they shine. The head of BWT's ultrafast laser division stated that ultrafast lasers have enormous development potential, continuously expanding the boundaries of human cognition in frontier fields and continuously overcoming key technological challenges in application areas. Looking ahead, BWT will adhere to a long-term vision, delve deeper into femtosecond, picosecond, and nanosecond laser fields, provide more innovative solutions for scientific research and industrial applications, and promote the progress and development of technology.

As the wave of technology surges, Xiaomi Motors is leading the trend in the new energy vehicle market with its innovative force. In another technological domain, BWT has achieved another milestone by exceeding the benchmark of shipping over 1,000 units of continuous fiber lasers in a single day.   Fiber lasers, with their high precision and efficiency, are becoming the driving force behind industrial upgrading. The BWT Thunder series fiber lasers, in particular, are leading the industry's technological innovation with outstanding performance, writing a new chapter in the field of industrial cutting.   I. Thunder Series Products: Birth and Rise In September 2023, BWT launched the Thunder series fiber lasers, marking the prelude to the Thunderstorm. Leveraging the company's deep accumulation and breakthroughs in high-power technology, the Thunder series products quickly swept across the country and achieved remarkable results across the entire power range within a short period.   The Thunder Series Product Development Timeline   Scaling highlands, reaching Southeast Asia, and moving from domestic to international markets, the BWT Thunder series products have flourished in the market, tracing a magnificent development trajectory. In March of this year, the momentum of BWT Thunder series products surged, with a sharp increase in orders, and production lines running at full capacity. In order to meet the growing market demand, BWT has actively deployed resources, with the Tianjin Phase II intelligent factory scheduled to commence operations in May, along with the simultaneous launch of Phase III construction projects, indicating a potential 4-5 fold increase in company capacity, laying a solid foundation for future market expansion.   Tianjin News Interview Report   II. Mastering the Art of Balance: Pursuing High Power while Considering High Performance The reason why the Thunder series products can stand out is due in no small part to their excellent performance in the high-power field. In particular, the advent of the world's first 150kW industrial-grade fiber laser implies a significant enhancement in processing capabilities.   This product has garnered widespread attention globally, prompting industry peers to ponder: does pursuing high power mean sacrificing high quality?   In fact, the BWT team understands the importance of balance deeply. In the development process of Thunder series products, the essence of balance has been integrated into every aspect of research and development. Not only have they successfully tackled ultra-high-power technical challenges, but they have also overcome key technical bottlenecks in the production, transmission, detection, and application of light, achieving a leap in comprehensive product performance.     Based on the relentless pursuit of comprehensive performance, the BWT Thunder series products demonstrate remarkable advantages of "high power, high integration, high brightness, and long fiber delivery cable". While breaking the global highest power record of 150kW, they also excel in high integration, high brightness, and long fiber delivery cable aspects.   Firstly, the high-power characteristics showcase the company's leading technological strength and provide strong support for cost reduction and efficiency improvement for users in practical applications.   Secondly, in terms of high integration, the product, based on CTC chip integration design, has a more compact layout, reduces footprint, and improves equipment utilization, saving valuable space resources for users.   Furthermore, in terms of high brightness, achieving high-quality beam transmission with a 200μm core diameter is undoubtedly a pinnacle of technology within the industry, where almost no one else can rival. It further optimizes laser processing effects, significantly improving cutting speed, accuracy, and surface quality.   Lastly, the design of a 30-meter ultra-long fiber delivery cable greatly expands the application scenarios of cutting equipment, enabling the product to perform excellently in complex environments such as large workpiece processing and long-distance transmission.   The perfect combination of these four features allows the BWT Thunder series fiber lasers to face more complex processing scenarios head-on and stand out in the market.     The birth of the Thunder series products is a process of continuous breakthroughs and the pursuit of excellence. In the R&D process, the team conducted in-depth analysis of industry shortcomings and strived for excellence in every detail. Through continuous optimization and upgrades, the Thunder 150kW product has successfully overcome many challenges and performed excellently in performance, stability, efficiency, and other aspects.   In today's market, the combination of super processing capabilities and balanced performance is a "supreme cooperation". The successful launch of the Thunder 150kW product signifies BWT's magnificent transformation from following to keeping pace, then to leading in the field of high-power fiber lasers.

In 2024, the global "new industrial engine" is accelerating at an unprecedented pace, leading the wave of technological revolution and industrial transformation. On March 19th, NVIDIA officially announced its new generation Blackwell architecture - the new nuclear-grade B200, showcasing its "game-changing" innovation in the GPU field. Coincidentally, on March 20th, BWT, following the launch of the 135kW ultra-high-power product, once again thundered into the scene by unveiling the world's first 150kW industrial-grade fiber laser, shaking the industry like a nuclear explosion. Although these two companies operate in different domains, vary in size, and possess different degrees of influence, they converge on a similar path, injecting powerful momentum into the development of the global new industrial era and scripting the innovative saga of a new era.     Since the beginning of the Year of the Loong, BWT has soared like a giant Loong, unstoppable, demonstrating a force and speed akin to a thunderstorm! In just over a month, BWT has consecutively launched four ultra-high-power products, with a speed and intensity unparalleled in the industry.   The "Fantastic Four" of Thunder Series Ultra-High-Power Lasers   Authoritative Witness: The World's First 150kW Stuns the Scene   At the W3-3310 booth of the 2024 LASER World of PHOTONICS CHINA, the Thunder 150kW fiber laser emerged like a sword, aiming directly at meeting the core needs of ultra-thick plate cutting. The improvement of efficiency in thick plate cutting has long been a major pain point in the industry. The key to solving this problem lies in continuously challenging the power limit and creating even more powerful processing capabilities.   "The launch of the Thunder 150kW product breaks the global industrial cutting field's high-power record. This innovative achievement not only signifies another peak in domestic laser cutting technology but also heralds the arrival of a new era in global high-power laser industrial applications!" said Chen Xiaohua, Chairman of BWT. The introduction of Thunder 150kW will bring unprecedented efficiency improvements to high-power thick plate cutting and usher in a new processing experience.   Chairman Chen Xiaohua's Address   Zhang Qingmao, Director of the Laser Processing Committee of the Chinese Optical Society, stated that China's manufacturing industry is currently at a crucial stage of transformation and upgrading, and the laser industry is embracing a major opportunity for "lane-changing overtaking." As an essential path to becoming a manufacturing and technological powerhouse, the application and development of laser technology are of significant importance in enhancing China's manufacturing competitiveness. With the arrival of the 150kW industrial-grade fiber laser, advanced manufacturing sectors such as aviation, shipping, railways, and automobiles will also upgrade to more advanced and efficient processing tools, bringing changes to various industries in terms of quality improvement, efficiency enhancement, scale expansion, and structural upgrading.   Director Zhang Qingmao's Address   Tang Xiahui, Vice Director of the National Engineering Research Center for Laser Processing and Chairman of the Hubei Province Laser Society, expressed that thick plate processing has always been a challenge in the manufacturing industry, and traditional processing methods often fail to meet the demands of high-end manufacturing. BWT's global first 150kW industrial-grade fiber laser provides a new solution for thick plate processing. Its powerful power ensures a significant improvement in cutting speed, efficiency, and processing quality, injecting new vitality into the development of the manufacturing industry. This achievement indicates that we have entered the forefront of the world in laser processing technology, providing stronger support for the transformation and upgrading of China's manufacturing industry and the cultivation of new quality productivity.   Vice Director Tang Xiahui's Address   At the press conference, Researcher Sun Qing from the National Institute of Metrology, China provided authoritative certification for the world's first 150kW industrial-grade fiber laser.   Researcher Sun Qing of the National Institute of Metrology, China providing certification   Breaking Through Bottlenecks: Opening Up the Ceiling of Ultra-High Power Applications   Technologically, the Thunder 150kW product has broken through the key technological bottlenecks from the generation, transmission, detection of light to its application, thus opening up the ceiling of ultra-high power applications.   In terms of research and development, BWT has innovatively adopted CTC integrated technology, seamlessly integrating chips, thermal sink structures, pump modules, and lasers, achieving integrated upgrades from traditional chips to pump sources and then to laser coolers. The company has independently developed a new generation of Thunder optical platform and employed technologies such as power coupling and femtosecond laser grating inscription to ensure high-quality and stable laser output.   BWT’s booth was crowded with visitors   In terms of transmission, BWT has independently developed ultra-high-power output heads with advantages such as high output power, wide operating frequency bands, and long service life, supporting the generation and transmission of ultra-high-power lasers up to 200kW.   In terms of detection, BWT, for the first time in China, used an optical power meter for the experimental measurement of 150kW laser power. At the same time, the successful testing of Thunder 150kW fills the gap in domestic testing of ultra-high-power experiments above 120kW, providing application data and practical experience for optical power meters (a new type of high-performance testing equipment).   In terms of application, the Thunder 150kW product can fully leverage its four major advantages of high power, high efficiency, high brightness, and long fiber delivery cable to significantly improve cutting speed and quality, providing powerful tools and means for exploring the world and promoting rapid development in industries such as industrial and scientific research.     Laser, as a representative of new quality productivity, driven by technological innovation, leads the traditional manufacturing industry onto a new path of efficiency, environmental friendliness, and sustainable development, achieving a double harvest of economic and social benefits.   The BWT Thunder 150kW product is a perfect interpretation of new quality productivity, integrating the latest technological innovations and creating the industry's strongest processing capabilities. It is expected to spark an efficiency revolution in the field of ultra-thick plate processing, further reducing costs and increasing efficiency along the industrial chain, injecting vigorous momentum into industrial applications, providing strong support for the transformation and upgrading of China's manufacturing industry, and promoting social technological progress and economic development to new heights.   The power of technology can change the world. BWT will resonate with the nation and the times, committed to applying the most cutting-edge laser technology to various fields, contributing to the progress of human society.

On the morning of March 19th, G·WEIKE, in collaboration with BWT, unveiled a groundbreaking 135kW laser cutting machine in Jinan, Shandong. The event welcomed esteemed guests including G·WEIKE's Director of Domestic Marketing, You Fude, G·WEIKE's Vice Director of Domestic Marketing, Cong Yijun, BWT Fiber BU's Deputy General Manager Cao Bailin, BWT Fiber BU's Marketing Center General Manager Gu Xuejian, as well as Ming Yu, the North China Regional Marketing Director of BOCHU Electronic, alongside numerous industry elites and media representatives, collectively witnessing this milestone moment.   Press conference scene   As industry leaders, BWT and G·WEIKE have combined their expertise in the multi-kilowatt sector to introduce the revolutionary 135kW laser cutting machine, representing a significant breakthrough in the global ultra-high-power laser processing field.   During the event, You Fude, G·WEIKE's Director of Domestic Marketing, expressed that the 135kW ultra-high-power laser cutting machine embodies the wisdom and craftsmanship of both G·WEIKE and BWT. It is poised to achieve new breakthroughs in cutting efficiency, quality, and cost, injecting momentum into the industry's development.   Speech by You Fude of G·WEIKE   BWT, a leader in high-power laser field, has long been committed to the R&D and production of core laser components. The Thunder series fiber lasers, introduced in 2023, cover power ranges from 12kW to 100kW.   Gu Xuejian, General Manager of BWT's Fiber BU Marketing Center, announced that in 2024, BWT continues its journey towards higher power, successfully launching industrial-grade laser products such as the Thunder 100kW and Thunder 120kW. BWT providing the ultra-high-power fiber laser for G·WEIKE's 135kW laser cutting machine signifies a new peak in global laser cutting technology.   Speech by Gu Xuejian of BWT   The BWT Thunder 135kW fiber laser, utilizing CTC chip integration technology and advanced laser techniques, boasts four major features: high integration, high power, high brightness, and long cable, ensuring stable comprehensive performance and providing strong support for the efficient and precise operation of cutting equipment. The Thunder series can address more complex and diverse cutting applications, efficiently serving industries such as shipbuilding, structural steel, machining, and energy, thereby facilitating the substitution of traditional processes and the rapid advancement of manufacturing industries.   BWT’s Thunder 135kW fiber laser   Furthermore, during the event, an authoritative test report from the National Institute of Metrology, China was unveiled. Through professional testing of the entire product, the Institute's assessment of the output power concluded: Power ≥135kW (direct testing at full power), supporting stronger processing effects.   Presently, there are no reported products with power ratings of 130kW and above in the industrial field, both domestically and internationally. The introduction of the 135kW laser cutting equipment by G·WEIKE and BWT establishes global leadership in this domain. Additionally, industry-related products in the 100-120kW power range typically feature fiber core diameters of 300-400μm. By effectively addressing challenges such as the high-temperature tolerance of high-power core components and the non-linear effects of high-brightness lasers, BWT has successfully achieved a core diameter of 200μm with 135kW output, while supporting cable lengths of ≥30m. This report confirms the formidable processing capabilities of the Thunder 135kW product, instilling greater confidence in the efficient processing of industrial ultra-thick plates.   Certified by the National Institute of Metrology, China     The launch ceremony released the 135kW ultra-high-power cutting equipment   Following this, G·WEIKE finalized contracts with clients directly on-site. Through the integration of BWT Laser, BOCHU Electronic laser cutting heads, and G·WEIKE laser cutting equipment, an exceptional synergy has been achieved, culminating in the development of the 135kW ultra-high-power laser cutting equipment. This cutting-edge production guarantees amplified cutting capabilities, expanded processing thickness, and accelerated cutting speeds, offering superior laser processing solutions and delivering added value for customers.   On-site signing   The outstanding advantages of this 135kW laser cutting equipment lie in its meticulous design and powerful dynamics, endowing it with lightning-fast efficiency. Compared to machines with lower power ratings, the 135kW ultra-high-power laser cutting machine achieves significantly faster cutting speeds when processing materials like 30mm carbon steel, driving productivity improvement for enterprises.   Unveiling of the 135kW laser cutting equipment   In speed cutting tests, the 135kW product demonstrated exceptional performance, cutting 220mm carbon steel with oxygen at a speed 2.6 times faster than the 60kW cutting speed; for 30mm carbon steel, it achieved a speed 11 times faster than the 20kW cutting speed (the above data are calculated). During thickness cutting tests, this industrial-grade laser cutting machine, boasting the world's highest power, fearlessly tackles thick materials and competently takes on the challenge of cutting through the thickest plates globally. It effortlessly produces delicate cross-sections with superb sample quality when cutting 300mm carbon steel. Moreover, it handles cutting of 400mm and thicker carbon steel with ease.   In addition to stainless steel and carbon steel, the 135kW laser cutting equipment offers comprehensive processing capabilities for other super hard metal materials, making it applicable across various manufacturing processes including heavy-duty equipment such as ships, steel structures, and construction machinery.   Cutting samples of 400mm carbon steel   In the current international economic landscape, China's manufacturing transformation and upgrading are imperative. The birth of the 135kW ultra-high-power laser cutting equipment will undoubtedly catalyze a new era of efficiency revolution in the industrial sector, fostering the widespread adoption of advanced processes, enhancing productivity, and bolstering the country's high-end equipment manufacturing industry.   Seizing this opportunity, BWT will continue to cooperate with its partners, drive innovation, and assist industrial enterprises in cost reduction, efficiency enhancement, and quality improvement, collectively charting a new course for China's industrial development.

From March 6th to 8th, the Asia Photonics Expo (APE 2024) was held at the Sands Expo & Convention Centre in Singapore. The exhibition focused on the latest cutting-edge innovations and emerging application markets in the Asian photonics industry, showcasing optical materials, devices, modules, equipment, and solutions. BWT showcased its star products at the event, attracting significant attention from industry professionals.     At this exhibition, BWT highlighted diode lasers and fiber lasers products.   The diode laser offerings included 980nm pump sources for applications in research and material processing, multi-wavelength products for medical fields such as dentistry and medical cosmetology, as well as 976nm VBG, 808nm solid-state pump lasers, bar-stacked arrays, DS3 diode laser systems, covering fields such as scientific research, sensing, plate printing, and security lighting.       The Lightning series fiber lasers, with power ranging from 500W to 6000W, boast significant advantages of "smaller, lighter, and smarter," leading the industry trend towards miniaturization and lightweight, and driving the rapid development of handheld laser welding. By the end of 2023, total sales of the Lightning series had exceeded 50,000 units.     In the future, BWT will continue to leverage the exhibition platform to showcase the company's leading position in the field of lasers, strengthen communication and cooperation, and promote overseas market expansion.