Episodes

  • 10: Fiber Lasers with Martin Seifert

    10: Fiber Lasers with Martin Seifert
    Aug 29 2024
    Fiber lasers have become powerful and popular due to their ease of use, reliability, and cost-effectiveness. The critical components of a fiber laser include diode pumps, brag gratings, a coil of fiber, cladding light strippers, connectors, and an electronic board. Technical advances and innovations in fiber lasers were driven by the telecom bust in 2000, which led to the exploration of new applications and the development of larger fiber cores and new dopants. Specialty optical fibers are purpose-specific for applications like medical, space, radiation-resistant, and high-power. Dopants play a crucial role in achieving specific goals in fiber lasers. The coil of fiber in a fiber laser replaces the optics for beam amplification and direction, making the mechanics of the system easier. Manufacturing fiber lasers is more cost-effective and simpler compared to traditional bench-top lasers. Cooling systems, beam delivery cables, and processing heads are essential components of a fiber laser system. The efficiency of a fiber laser affects cooling costs, and higher beam quality reduces the complexity and cost of the beam delivery system. Energy costs and environmental conditions are important considerations for customers using fiber lasers. Back reflection is a challenge in laser systems, but advancements have mitigated its impact. The complexity of processing heads depends on the use case, with welding heads being more sophisticated. Mastering the different components of a fiber laser is crucial for suppliers, but there is also the option to buy components from other vendors and assemble them.
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    32 mins
  • 9: PART TWO: Consumer Electronics with Gerald Dahlmann

    9: PART TWO: Consumer Electronics with Gerald Dahlmann
    Jul 18 2024
    In this conversation, Gerald discusses the lead times for shipping products, the lack of standards in the consumer electronics industry, the potential of AR/VR glasses becoming mainstream, the challenges and possibilities of glucose monitoring, the role of sensors in personal health monitoring, the impact of robotics in various industries, and the advancements in smart home devices.
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    33 mins
  • 8: PART ONE: Consumer Electronics with Gerald Dahlmann

    8: PART ONE: Consumer Electronics with Gerald Dahlmann
    Jul 18 2024
    In this conversation, Jeff Nolan interviews Gerald Dahlman, the vertical leader for consumer electronics at Coherent. They discuss various topics related to consumer electronics, including the definition of the market, the role of VIXEL technology, the growth potential of existing and new products, and the integration of AI and sensors in consumer devices. They also touch on the challenges of product qualification, the future of network architecture, and the potential for sensor innovation in laptops and desktops.
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    32 mins
  • 7: PART TWO: Display Manufacturing with Oliver Haupt

    7: PART TWO: Display Manufacturing with Oliver Haupt
    Jun 20 2024
    In part two of our series with Oliver Haupt, the conversation covers various topics related to display technologies, including eco-friendly materials, foldable and rollable displays, micro-LEDs, glass in displays, and displays in automotive and consumer devices. The use of cadmium compounds in current displays is a concern due to their environmental and health impact, but there is a shift towards more eco-friendly materials. Foldable and rollable displays are similar in architecture, but their applications differ. Micro-LEDs offer advantages such as smaller pixel size, durability, and integrated sensors. Glass is an essential component in displays, providing structural support, transparency, and electrical insulation. Displays in automotive and consumer devices are evolving, with OLED displays gaining popularity. The future of displays includes high-resolution, low-power options for home appliances. The SID exhibition showcases exciting developments in various display technologies.
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    30 mins
  • 6: PART ONE: Display Manufacturing with Oliver Haupt

    6: PART ONE: Display Manufacturing with Oliver Haupt
    Jun 6 2024
    In part one of our two part series with Oliver Haupt, the vertical market leader for display manufacturing, we discuss the exciting advancements and challenges in the industry. He highlights the constant evolution of display technologies and the thrill of working with new applications and state-of-the-art technologies. Oliver explains that while Apple's decision to discontinue their micro LED watch project was shocking, it did not kill the micro LED industry, as many companies are still working on it. He also provides insights into the different display technologies, such as OLED, QLED, and quantum dots, and their manufacturing processes. Oliver emphasizes the importance of factors like brightness, durability, resolution, cost, and color density in determining the success of a display technology. He also discusses the transition from Gen 6 to Gen 8.6 OLED manufacturing and the advantages of larger panels. Additionally, Oliver touches on the use of lasers in the manufacturing process and the industry's
    interest in new laser technologies. Finally, he explores the future of display technologies beyond OLED, such as quantum dots and QLED, and addresses the challenges of material durability and blue light damage.
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    31 mins
  • 5: Charged Up: Batteries

    5: Charged Up: Batteries
    May 23 2024
    Summary:

    In this episode, Dr. Majid Abbasi discusses various aspects of battery manufacturing, including global manufacturing capacity, challenges in anode and cathode materials, building a battery factory, the role of lasers in battery manufacturing, availability of rare metals, desirability of lithium, implications of battery breakthroughs, regulatory factors, impact on consumer devices, introduction to solid-state batteries, obstacles in solid-state batteries, cost per kilowatt, investment trends, and his passion for batteries.

    Takeaways:

    Battery manufacturing capacity has significantly increased in recent years, with new battery chemistries, recycling, and solid-state batteries driving further growth.
    The availability of anode and cathode materials, such as lithium, graphite, and other metals, is a key factor in scaling up battery production.

    Building a battery factory requires significant investment in R&D, equipment, and processes, with gigafactories being constructed to meet the growing demand.
    Lasers play a crucial role in battery manufacturing, including welding, cutting, drying, and cleaning processes.

    Solid-state batteries offer potential advantages in terms of safety and energy density, but face challenges related to lithium dendrite formation and manufacturability.
    The cost per kilowatt of batteries is a critical metric, with a target of $100 per kilowatt being a common goal for affordability and accessibility.

    Government regulations, incentives, and consumer demand are driving investment in battery manufacturing, with different regions experiencing varying levels of growth.
    Battery technology is transforming various industries, including consumer devices, appliances, and transportation, enabling innovative designs and portability.

    Battery manufacturers collaborate with companies like Coherent to address challenges, improve processes, and develop solutions for battery manufacturing.
    Dr. Abbasi's passion for batteries stems from his background in metallurgy and welding, and his belief in the transformative power of battery technology.

    Chapters:

    00:00 Introduction
    02:20 Global Manufacturing Capacity for Batteries
    03:46 Challenges in Anode and Cathode Materials
    05:10 Building a Battery Factory
    06:07 Overview of Battery Manufacturing Process
    08:26 Role of Lasers in Battery Manufacturing
    10:54 Drying Process in Battery Manufacturing
    11:53 Competing Methods for Welding and Cutting
    14:17 Challenges in Pouch and Prismatic Cells
    15:12 Advantages of ARM Laser in Battery Welding
    18:05 Availability of Rare Metals for Batteries
    20:04 Desirability of Lithium in Batteries
    21:30 Switching Chemistries in Battery Manufacturing
    22:00 Implications of Battery Breakthroughs
    23:55 Regulatory Factors in Battery Manufacturing
    28:43 Impact of Batteries on Consumer Devices
    31:12 Introduction to Solid State Batteries
    33:09 Obstacles in Solid State Batteries
    35:09 Cost Per Kilowatt and Long-Term Implications
    38:04 Investment Trends in Battery Manufacturing
    40:04 Engagement with Battery Manufacturers
    41:30 Passion for Batteries
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    40 mins
  • 4: Thermal Management

    4: Thermal Management
    May 9 2024
    Summary

    In this episode of Now, Next, and Beyond, host Jeff Nolan discusses thermal management with Dr. Sridhar Nagarajan, an expert in the field. They explore the importance of thermal management in various industries, including automotive design, data centers, and consumer devices. They also discuss the challenges and innovations in engineering materials for thermal management. The episode emphasizes the need for energy sustainability and offers advice for young professionals in the field.

    Takeaways:

    Thermal management is crucial in industries such as automotive design, data centers, and consumer devices.

    Engineering materials with high thermal conductivity and low coefficient of thermal expansion are essential for effective thermal management.
    Maintaining optimal temperature ranges is important for efficiency and the longevity of systems.

    Innovations in thermal management include advancements in chip-level cooling and the use of materials like diamond and silicon carbide.
    Young professionals should focus on energy sustainability in their work.

    Chapters

    00:00 Introduction to Thermal Management
    03:47 The Importance of Thermal Management
    08:46 Engineering Materials for Thermal Management
    14:01 Thermal Management in Automotive Design
    16:29 Optimal Temperature Range and Efficiency
    19:17 Thermal Management in Data Centers
    22:37 Thermal Management in Consumer Devices
    23:35 Thermal Management in Various Industries
    26:20 Innovations in Thermal Management
    31:42 Advice for Grad Students and Young Professionals
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    33 mins
  • 3: Part 2: Sanjai Parthasarathi on Megatrends in Communications, Materials, and Lasers.

    3: Part 2: Sanjai Parthasarathi on Megatrends in Communications, Materials, and Lasers.
    Apr 25 2024
    This is part two of the interview with Coherent CMO Sanjai Parthasarathi.

    Takeaways
    • Connectivity and internet access are essential for both urban and rural areas, and there is still a need for increased bandwidth and infrastructure development. Space optical communication provides a perfect transmission medium for data transmission without signal attenuation.
    • Satellite communications, including satellite-to-satellite optical links, are becoming more prevalent in the commercial domain.
    • The adoption of new technologies often takes longer than expected, but breakthroughs can happen when unrelated developments come together.
    • Engineered materials and crystal growth require significant human expertise and investment, providing a competitive advantage.
    • Platform technologies, such as gallium arsenide, have broad-based growth potential across multiple markets.
    • The future of technology includes advancements in wearables, personal health monitors, optogenetics, and pulse laser deposition.
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    38 mins