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  • TFLN FORUM | Dr. Hui Hu: Thin Film Lithium Niobate for Integrated Photonics
    Mar 27, 2024 TFLN FORUM | Dr. Hui Hu: Thin Film Lithium Niobate for Integrated Photonics

    March 25, 2024 - At the "Technologies and Applications of Thin Film Lithium Niobate Photonics" forum co-hosted by AFR and HyperLight, Dr. Hui Hu gave a speech entitled "Thin Film Lithium Niobate for Integrated Photonics," discussing the latest advancements and potential applications of thin film lithium niobate in the field of integrated photonics.

    About Hui Hu and NanoLN

    Hui Hu earned his B.S. and Ph.D. degrees in Physics from Shandong University in 1996 and 2001, respectively. From 2001 to 2003, he was a post-doc at Tsinghua University, China. From 2004 to 2010, he was in University of Paderborn, Germany, as an Alexander von Humboldt Research Fellow and a post-doc. Since 2011, he has been the CTO of NanoLN company and a professor at Shandong University. His research is focused on thin film materials, nanofabrication, and integrated photonics.

    NanoLN is specialized in producing single-crystal lithium niobate thin films (TFLN/LNOI) and single-crystal lithium tantalate thin films (TFLT/LTOI). It also provides wafer thinning and PECVD (Plasma-enhanced chemical vapor deposition) services for its customers, enabling them to use the wafer for production.

    Emergence of a Mature, Comprehensive, and Reliable TFLN Supply Chain

    The optimistic outlook within the TFLN industry is attracting numerous technology companies, leading to the swift evolution of a comprehensive ecosystem. It is encouraging to note that an increasing number of technology enterprises and startups worldwide are converging onto this track, shaping the future of the industry collectively, covering materials, wafers, chips, modulators, and optical modules.

    In the panel discussion, representatives from key players of the supply chain, including NanoLN in wafer manufacturing, AFR, HyperLight, Liobate, Ori-Chip, and FOC in chip production, Hisense and Linktel in transceivers, exchanged opinions about the prospect of TFLN, technology breakthroughs, and how to make it more ready for near future large volume applications.

    As we observe together, the TFLN supply chain is steadily maturing, becoming more comprehensive and reliable over time. The growth and integration of each component signify a promising future for TFLN technology, establishing it as a pivotal player in the global technological landscape.

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  • AFR and HyperLight Co-Host Thin Film Lithium Niobate Forum at OFC
    Mar 26, 2024 AFR and HyperLight Co-Host Thin Film Lithium Niobate Forum at OFC

    March 25, 2024 – AFR and HyperLight joined forces on March 25, 2024, to organize the highly anticipated forum, "Technologies and Applications of Thin Film Lithium Niobate Photonics," held at the San Diego Convention Center.

    The event successfully brought together leading experts from academia and industry, facilitating the exchange of the latest advances and challenges in the field of Thin Film Lithium Niobate (TFLN). Distinguished speakers included Dr. Vladimir Kozlov from LightCounting, Marko Lončar from Harvard University, and top executives from renowned global industry players such as AFR, HyperLight, NanoLN, FOC, Ori-Chip, Liobate, Hisense, Linktel, and more. The forum featured cutting-edge technological presentations, engaging panel discussions, creating an enthusiastic atmosphere for deliberation that captivated the participation and attention of nearly a hundred professionals from diverse sectors.

    Why TFLN?

    The relentless expansion of data traffic in fiber-optic communication networks, driven by emerging applications like artificial intelligence (AI) and big data, has become a catalyst for innovation. The increasing demand for high-speed optical devices capable of handling the growing workload necessitates a closer look at TFLN.

    Table 1. Comparison of Material Technology for Optical Devices

    Compared to other optoelectronic materials such as indium phosphide, silicon photonics, and traditional lithium niobate, TFLN stands out for its ability to achieve an ultra-fast modulation speed and support high integration. It boasts outstanding features, including ultra-high bandwidth, low power consumption, low loss, and a compact size, enabling wafer-scale large-volume manufacturing. This positions it as the ideal material for electro-optic modulators.

    The TFLN technology finds huge potential in coherent applications for long-haul, metro and DCI networks, as well as PAM-4 applications in data centers and AI clusters. New products have been developed and released, such as the 130GBaud CDM (Coherent Driver Modulator) and 800Gbps PAM-4 by AFR, and also demonstrated in PAM-4 transceivers by HyperLight, Eoptolink and Arista. The benefits brought by TFLN technology are enormous, especially in terms of bandwidth and power consumption.

    Emergence of a Mature, Comprehensive, and Reliable TFLN Supply Chain

    The optimistic outlook within the TFLN industry is attracting numerous technology companies, leading to the swift evolution of a comprehensive ecosystem. It is encouraging to note that an increasing number of technology enterprises and startups worldwide are converging onto this track, shaping the future of the industry collectively, covering materials, wafers, chips, modulators, and optical modules.

    In the panel discussion, representatives from key players of the supply chain, including NanoLN in wafer manufacturing, AFR, HyperLight, Liobate, Ori-Chip, and FOC in chip production, Hisense and Linktel in transceivers, exchanged opinions about the prospect of TFLN, technology breakthroughs, and how to make it more ready for near future large volume applications.

    As we observe together, the TFLN supply chain is steadily maturing, becoming more comprehensive and reliable over time. The growth and integration of each component signify a promising future for TFLN technology, establishing it as a pivotal player in the global technological landscape.

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  • Highlights from AFR's Asia Photonics Expo 2024
    Mar 14, 2024 Highlights from AFR's Asia Photonics Expo 2024

    Mar. 8, 2024 - The inaugural Asia Photonics Expo (APE) concluded at Sands Expo and Convention Centre in Singapore. APE has brought together 350 exhibitors and many attendees from all over the world, serving as a platform for showcasing the latest technologies, exchanging ideas, and fostering partnerships. AFR and its subsidiary, VLINK, showcased a variety of products, including 1550 nm LiDAR light source, 130 GBaud TFLN CDM, Micro-Connectivity Products, etc., which attracted great attentions.

    1550 nm LiDAR Light Source

    AFR's LiDAR Light Source features a pulse width and repetition rate tunable design for higher pulse energy and peak power. The product has industry-leading E-O efficiency and stability in a compact package. AFR also provides customized light source services.

    130 GBaud TFLN CDM

    A quad-channel 130 GBaud High-Bandwidth CDM integrated with

    RF driver, designed for 800 Gb/s or 1.2 Tb/s coherent optical communication systems.

    Micro-Connectivity Products

    VLINK presented its flagship products during the event, including 400G DR4 Assembly, 90° Fiber Bending FAU and 24F Protrusion FAU, widely being used in 400G/800G/1.6T high speed/ultra-high-speed optical modules, PIC/CPO applications, coherent optical communications and WSS modules.

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  • Highlights from AFR's Photonics West 2024
    Feb 06, 2024 Highlights from AFR's Photonics West 2024

    Feb. 1, 2024 The much-anticipated Photonics West 2024 concluded at the Moscone Center in San Francisco. With over 1,500 manufacturers and research institutions from around the world gathering on-site, the event served as a platform for unveiling the latest advancements and discussing emerging industry trends.

    Among the many of exhibitors, Advanced Fiber Resources (AFR) emerged as a standout, captivating attendees with their innovative and diversified product portfolio, which includes LiDAR light source, lithium niobate modulators, fiber laser components, etc. Here are some of the highlights from AFR's showcase:

    1550 nm LiDAR Light Source

    AFR's LiDAR Light Source features a pulse width and repetition rate tunable design for higher pulse energy and peak power. The product has industry-leading E-O efficiency and stability in a compact package. AFR also provides customized light source services.

    Swept Tunable Laser Module

    Arcadia Optronix's (AFR wholly owned subsidiary) Swept Tunable Laser Module offers a wavelength range of 1528 to 1568 nm and a sweep speed of up to 2 kHz. The output power reaches 20 mW while maintaining wavelength stability < 1 pm.

    500 W Fiber to Free Space Isolator

    AFR proprietary design and award-winning product (Laser Focus World Innovators Awards 2023) with unparalleled performance for fiber laser application.

    130 GBaud TFLN Coherent Driver Modulator

    A quad-channel 130 GBaud High-Bandwidth Coherent Driver Modulator integrated with RF driver, designed for 800 Gb/s or 1.2 Tb/s coherent optical transport systems and transceivers.

    For more information about all products above, please contact sales@fiber-resources.com or visit our product center at www.fiber-resources.com.

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  • Revolutionizing High-Speed Optical Devices: The Promising Future of TFLN
    Dec 27, 2023 Revolutionizing High-Speed Optical Devices: The Promising Future of TFLN

    Dec. 27, 2023 – The relentless expansion of data traffic in fiber-optic communication networks, fueled by emerging technologies such as artificial intelligence (AI) and big data, has become a driving force for innovation. According to Allied Market Research, the global data center market is anticipated to soar to $24.6 billion by 2031, with a remarkable compound annual growth rate (CAGR) of 5.9%. This surge in data transmission demands high-speed optical devices capable of handling the increased workload.

    Key Advantages of TFLN Material

    Conventional optical modules currently employ chips based on silicon photonics and indium phosphide platforms. Nevertheless, constraints in material bandwidth and suboptimal linearity have given rise to bottlenecks for applications exceeding 800 Gbps. A revolutionary solution to these challenges arises with the introduction of thin-film lithium niobate (TFLN) material.

    Items

    LiNbO3

    InP

    SiPh

    TFLN

    Performance compared to other materials

    Optical Loss (dB)

    JJJ

    JJ

    J

    JJJJ

    Excellent

    Max. Bandwidth (GHz)

    JJ

    JJJ

    JJ

    JJJJ

    Excellent

    Half-Wave Voltage Vπ (V)

    JJJ

    JJJ

    JJ

    JJJJ

    Excellent

    Extinction Ratio (dB)

    JJJJ

    JJJ

    JJ

    JJJJ

    Excellent

    Chip Length (mm)

    JJJJ

    JJ

    JJ

    JJJ

    Median

    Linearity

    JJJJ

    JJ

    J

    JJJJ

    Excellent

    Integration

    J

    JJ

    JJJJ

    JJJJ

    Excellent

    Cost

    JJ

    JJJJ

    J

    JJJ

    (Reduced after scaling)

    Median

    (Reduced after scaling)

    Table 1. Comparison of Material Technology for Optical Devices

    In Table 1, TFLN emerges as a promising material technology, surpassing mature counterparts like LiNbO₃, InP, and SiPh. Notably, TFLN stands out with its remarkable advantages in low optical loss and large bandwidth. Its excellence extends to key performance factors like Half-Wave Voltage, Extinction Ratio, Linearity, and Seamless Integration, marking it as a leading contender in optical innovation. As the technology matures and market applications broaden, the cost of TFLN is expected to decrease, driven by economies of scale in production.

    TFLN Industry Chain Solidifies for Future Breakthroughs

    The optimistic outlook of the TFLN industry is drawing numerous technology enterprises, fostering the rapid development of a complete ecosystem. Key players such as AFR (headquartered in Zhuhai, China), HyperLight (based in Cambridge, MA, USA), Liobate (situated in Nanjing, China), NanoLN (located in Jinan, China) and Novel Si Integrated Technology (based in Shanghai, China) have pledged their dedication to forging a robust chain in this burgeoning field, covering materials, wafers, chips, modulators, and optical modules. With a unified commitment to collaboration across the industrial chain, the year 2024 is expected to witness remarkable breakthroughs in this rapidly evolving sector.

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  • AFR Panel Discussion Unveils Insights into Future of TFLN Technology at LiNC 2023
    Dec 14, 2023 AFR Panel Discussion Unveils Insights into Future of TFLN Technology at LiNC 2023

    Dec. 14, 2023 – Advanced Fiber Resources (AFR) orchestrated a dynamic panel discussion at the LiNC 2023, where leading experts delved into the forefront of TFLN (Thin Film Lithium Niobate) technology. Moderated by Dr. Dennis Zhou, AFR's Vice President, the panel featured esteemed figures including Prof. Marko Lončar from Harvard University, Prof. Xinlun Cai from Sun Yat-Sen University, Prof. Xin Ou from Shanghai Inst. Microsys. Inform. Technol., CAS, and Dr. Hui Hu from NanoLN, covering a diverse spectrum of topics.

    AFR Industry Forum Panel Discussion

    Dr. Dennis Zhou initiated the dialogue by inquiring about the breakthroughs expected in the coming years, in the rapidly evolving landscape of TFLN technology.

    Prof. Marko Lončar expressed, "My focus is on research opportunities and scientific advancements, particularly in commercializing this technology, I'm particularly excited about its applications in photonics. Optical computing has been around for a long time, and TFLN holds promising potential in this realm."

    Prof. Xin Ou concurred with Prof. Loncar, underscoring the importance of research breakthroughs and cost reduction, particularly in the context of wafer costs. “The point is how we can make it more competitive and acceptable for the industry and products compared to other materials such as InP and SiPh..” He said.

    Addressing the significant barriers hindering the promotion of TFLN technology, Prof. Marko Lončar identified three key challenges: a scarcity of time and skilled personnel, reliability concerns in the manufacturing process, and cost considerations.

    Prof. Xinlun Cai echoed Prof. Loncar's sentiments, emphasizing the necessity of finding more applications to accelerate TFLN adoption. He identified data centers and AI clusters as potential markets, highlighting the importance of product maturity and end-user education. ”I’m a big believer of this technology. TFLN can go very far, it will be the winner if applied to 200G+ transfers. Companies like HyperLight, Liobate and AFR are shaping this young industry, we are kind of like doing experiment, trying to find a way to lead the future.” He said.

    Discussing the opportune moment for TFLN modulators to surpass incumbent technologies, Prof. Xinlun Cai identified the rapidly evolving landscape, citing the unexpected rise of AI clusters and the urgent demand for 800G. He highlighted the current focus on 1.6T as a new opportunity, requiring extensive work for qualification, mass production, and market capture.

    As the panel concluded, participants offered collaborative strategies to expedite TFLN technology development. Dr. Hui Hu underscored the importance of enhanced communication and cooperation within the industry, while Prof. Xin Ou advocated for the inclusion of representatives from the system and investment fields to strengthen the industry chain. Dr. Dennis Zhou proposed collaborative efforts with standard organizations to establish and promote industry standards. Meanwhile, he also forecasted that there will be one forum and one technical session hosted by HyperLight and AFR during OFC 2024 in San Diego, USA. It is anticipated that this event will foster additional cooperation and inspire innovative ideas.

    About AFR

    Advanced Fiber Resources (AFR) designs and manufactures standard and custom components, modulators, and provides contract manufacturing solutions to our customers. Our products are widely used in fiber laser, telecom, data center, fiber sensing, autonomous driving, biomedical equipment, as well as research institutes and universities around the globe. AFR’s products have been sold to customers in more than 40 countries and regions worldwide.

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