Core Viewpoint - Tianao Electronics (002935) has been recognized for its cesium atomic clock, which serves as a primary frequency standard and is included in the International Bureau of Weights and Measures (BIPM) list of recommended timekeeping clocks, making it the only commercial atomic clock from China to qualify for providing data for the International Atomic Time (TAI) [1] Group 1 - The cesium atomic clock provides frequency and time standards for systems [1] - The company’s cesium clock is the only one from China listed in the BIPM timekeeping clock recommendations [1] - The clock is qualified to provide data for the international time standard, TAI [1]

Core Insights - The optical frequency comb industry in China is experiencing rapid growth, with a projected market size of approximately 0.59 billion yuan in 2024, reflecting a year-on-year increase of 9.26% [1][4] - China has transitioned from "catching up" to "keeping pace" in technology, with three main technical routes: mode-locked laser frequency combs, Kerr microcavity frequency combs, and electro-optic combs [1][4] - Significant advancements have been made, such as the development of an integrated femtosecond optical frequency comb by the Aerospace Science and Technology Corporation, which reduces size to 1/8 of traditional devices and cuts costs by 50% while maintaining competitive precision [1][4] Industry Overview - Optical frequency combs (OFC) are spectral technologies that present evenly spaced, discrete, and coherent frequency components, widely used in precision spectroscopy, optical atomic clocks, quantum computing, and astronomical observations [2][4] - The concept was first proposed in 1978, with significant milestones including the 2005 Nobel Prize recognition and China's accelerated development post-2005, focusing on mode-locked laser technology [2][4] Industry Development History - The industry has evolved from basic research to engineering applications, with breakthroughs in integrated microcavity dual combs expected by 2024 and a projected doubling of XUV comb coupling efficiency by 2025 [2][4] Industry Value Chain - The upstream of the optical frequency comb industry includes raw materials like lithium niobate crystals and essential components such as mode-locked lasers and optical elements [4] - The midstream involves manufacturing and system integration, while the downstream applications include optical atomic clocks and precision spectroscopy [4] Market Size - The optical frequency comb market in China is set to reach approximately 0.59 billion yuan in 2024, with a growth rate of 9.26% [1][4] Key Institutions and Company Performance - The competitive landscape is characterized by a collaboration between leading research institutions and companies, with significant contributions from organizations like the Chinese Academy of Metrology and Aerospace Science and Technology Corporation [7][8] - Shanghai Precision Laser Technology Co., Ltd. has achieved technological breakthroughs in the field, delivering over 5,000 laser units and focusing on domestic product replacement [8] Industry Development Trends 1. **Technological Breakthroughs and Integration**: The industry is moving towards miniaturization and integration, significantly reducing costs and complexity [9] 2. **Cross-disciplinary Integration and Multi-band Coverage**: Development will focus on integrating with quantum information technology and biomedical imaging, enhancing sensitivity and resolution [10] 3. **Accelerated Industry Chain Improvement**: The domestic production rate of core components is increasing, with companies like Shanghai Precision Laser Technology reducing costs through vertical integration [11]