公众号记得加星标⭐️，第一时间看推送不会错过。 来源：内容 编译自 semiengineering 。 光学技术在长距离通信方面已经非常成熟，但其服务的距离正在缩短——尤其是在数据中心。 垂直腔面发射激光器 (VCSEL) 已经能够驱动短光纤链路。但人们正在努力进一步缩小其尺寸，以便 通过波导提供比光纤更多的连接。 Amkor Technology封装开发高级总监 Suresh Jayaraman 表示："我们已经见证了从长途网络到城域 网、局域网，再到数据中心的转变。光纤已经从卡的边缘转移到板载，最近又转移到了封装上。" 目前，许多研究正在进行中，旨在将光纤更靠近数据中心的服务器。目前，该技术通常用于机架间通 信，而大多数机架内线缆仍采用铜线。用光纤取代铜线仍然是一个发展机遇。 将激光器与硅集成 尤其令人感兴趣的是光纤将如何连接到处理器。标准可插拔格式可能会被线性可插拔光学器件 (LPO) 和共封装光学器件 (CPO) 所取代。但这些器件仍在开发中。 在如何集成光通信方面，激光器的三个主要特性是可靠性、温度敏感性和能耗。可靠性一直是首要考 虑因素，尽管它已经有所改进，但开发人员仍然担心激光器焊接到电路板上时 ...

Core Viewpoint - Quantum sensors are expected to significantly benefit multiple industries due to their enhanced sensitivity and new sensing capabilities compared to traditional sensors [2] Group 1: Quantum Sensor Innovations - Quantum sensors, including atomic clocks, quantum magnetometers, and quantum gyroscopes, are anticipated to revolutionize various sectors [2] - The transition from laboratory prototypes to commercial products requires optimization of size, weight, power, and cost (SWaP-C) [2] - The most effective method for achieving this is through scalable semiconductor manufacturing processes [2] Group 2: Manufacturing Techniques - Glass vapor cells are essential for quantum sensors, enabling interaction between lasers and atomic gas samples [5] - Traditional glassblowing techniques limit the miniaturization of vapor cells, while wafer-level semiconductor manufacturing can produce highly uniform vapor cells for mass production [5] - Innovations in manufacturing techniques, including alternative glass materials and various etching and bonding technologies, are crucial for enhancing performance [5] Group 3: Laser Technology - Lasers are a critical component in quantum sensors, with VCSELs (Vertical-Cavity Surface-Emitting Lasers) being particularly important for their scalability and integration [7][8] - The demand for VCSELs has surged due to their applications in smartphones, automotive infrared cameras, and data center interconnects [7] - VCSELs must meet specific requirements for atomic quantum sensors, including wavelength stability and narrow linewidth [7] Group 4: Market Challenges - The high production costs of quantum sensor components limit their target markets, creating a cycle that restricts scaling and cost reduction [9] - Current manufacturing processes for vapor cells are complex and expensive, necessitating collaboration between academia and industry to support semiconductor manufacturing for emerging quantum technologies [9] Group 5: Future Market Outlook - Innovations in vapor cell and VCSEL manufacturing have enabled the miniaturization of atomic clocks, providing a blueprint for transitioning other quantum sensors to mass production [10] - Semiconductor foundries are positioned to become key players in the quantum sensor value chain, with investments aimed at reducing manufacturing costs opening up larger market opportunities [10] - The demand for improved sensing solutions in timing, magnetic field sensing, and inertial sensing will drive the growth of quantum sensors [10]