Litecore: Empowering Optics Valley with High-End Chips

      May 20th, the three-day 21st "China Optics Valley" International Optoelectronic Expo came to a successful close at the Wuhan China Optics Valley Science and Technology Convention Center. As a highly influential industry event in China's optoelectronics sector, the Expo focused on the integrated innovation of optoelectronics and AI, bringing together numerous industry leaders and specialized and sophisticated "Little Giant" enterprises to showcase cutting-edge industrial technologies and innovation achievements. Fujian ZK Photonics, having deeply cultivated the core optoelectronics track for many years, adheres to the development philosophy of independent innovation and domestic substitution. Empowering industrial chain upgrades with hardcore optical chip technology, the company made a significant appearance at the Expo, presenting its cutting-edge technological achievements and full range of core products. With solid technical strength and product advantages, ZK Photonics garnered high attention and recognition from numerous industry experts. During the Expo, Wu Zhiling, Deputy Secretary of the Huangshi Municipal Party Committee and Mayor of Huangshi City, visited the company's booth for guidance. He thoroughly reviewed the company's R&D achievements, product applications, and industrial layout, fully affirming its development initiatives focused on deepening its presence in the optoelectronics field and supporting regional industrial upgrades.

1. Technical Highlights: Launch of Multiple High-End New Products

      Next-Generation 1310nm CW 400mW High-Power Silicon Photonic Light Source Chip: Supports high-density interconnection scenarios such as NPO/CPO, meets the requirements of ELSFP external light source modules, features low RIN ( < -145 dB/Hz ), high SMSR ( >40 dB ), and wavelength extendable to CWDM4.   

      Ultra-Narrow Linewidth Laser: The narrow linewidth characteristic effectively suppresses phase noise interference and optimizes signal transmission quality. The product features a linewidth of <5 kHz, extremely low phase noise, high side-mode suppression ratio ( >45 dB ), and an operating wavelength of 1550nm, with support for customized wavelengths from 1530nm to 1565nm. It is widely applicable in scenarios such as coherent communication, distributed sensing, RF and microwave photonics, and LiDAR.     

     Nano ITLA: Achieves high-precision temperature control and wavelength tuning based on proprietary lithography technology. Core optical materials, including gain chips, etalons, and phase tuning chips, are self-developed and manufactured. The linewidth performance is industry-leading, with an average below 30kHz, and proprietary technologies cover ultra-broad spectra C++/L++/C+L.

Ultra-narrow linewidth laser

Typical linewidth curve

2. Core Scenario Enablement: Full-Stack Solutions for AI Cluster Networks

     Scale-up/Scale-out Scenarios:Provides silicon photonic light source products in various specifications, including 1310nm CW 70/100/400mW and CWDM4, supporting high-speed, high-density interconnect applications such as 400G/800G/1.6T and NPO/CPO.    

     Scale-across Scenarios: Provides iTLA tunable light source products for coherent optical modules, breaking through transmission bottlenecks to achieve ultra-long-distance interconnection in data centers. Supports applications such as 400G ZR/ZR+ and 800G ZR/ZR+, handling the AI data surge and meeting high-bandwidth throughput requirements.    

     OCS Optical Switching Scenarios:Provides SOA semiconductor optical amplifiers for optical signal loss compensation, ensuring stable output power and signal quality. Leveraging the carrier injection effect of SOAs, nanosecond-level optical switching can also be achieved. Supports rapid reconfiguration of OCS network topologies and elastic bandwidth allocation.

3. Industry Resource Collaboration: Seizing New Opportunities in the Trillion-Yuan Industry

     As the core hinterland of China Optics Valley, Wuhan is the birthplace and clustering highland of the domestic optoelectronics industry, bringing together top-tier research resources, leading enterprises, and industry elites. It serves as a vital platform for exchange, cooperation, and technological interaction within the optoelectronics sector. ZK Photonics will continue to strengthen the synergy between its Wuhan R&D Center and Huangshi manufacturing base, increase technical investment in high-end products, and leverage its proprietary core technologies to support the ecological development of Optics Valley. During the Expo, ZK Photonics' products attracted significant attention from numerous industry customers. The company reached clear cooperation consensus with multiple customers on-site, established preliminary agreements regarding core product performance optimization and subsequent testing, and confirmed plans for reciprocal visits and exchanges. These steps will further deepen technical collaboration, promote the practical application of core products and technologies, and achieve mutual benefit and win-win outcomes.

       Deeply rooted in the silicon photonics domain and intelligently connecting Hubei, striving together for long-term success and achieving win-win collaboration through photonics integration. During this Wuhan Optoelectronic Expo, Fujian ZK Photonics fully demonstrated its technical accumulation and innovative strength, deeply cultivated in the core optoelectronics track. The company consistently upholds its development philosophy of "independent innovation and diligent chip crafting," pursuing parallel technological breakthroughs and product iteration. It drives industrial upgrades with cutting-edge technological advancements and empowers high-quality development of the optoelectronics industry with high-performance, self-developed products.