Self developed chip high reliability detector product matrix SAN-U Optronics: Heavy Release of Self Developed Photodiode Chips and Series Devices Recently, SAN-U Optronics' self-developed Photodiode chip and series of devices were officially released, marking our company's promotion of domestic substitution of key optical devices in the field of optical communication. As a key link in the optical communication industry chain, PD chips are known as the "translator of optical signals", and their performance directly determines the transmission efficiency and reliability of optical communication systems. Based on the technological breakthrough of self-developed PD chips, SAN-U Optronics has launched four major product matrices: MiniPD series, tail fiber PD (adhesive/laser welding), TapPD series, and arrayed PD devices. With the dual advantages of "diversified product types+domestic chip substitution", the products are mainly used in the fields of fiber amplifiers, optical power meters, optical signal data transmission, and optical sensing. Self developed Photodiode chip and series device product Series ① SAN-U self-developed Photodiode chip The Photodiode self-developed chip adopts a PIN structure design, which has ultra-low dark current, high reliability, and low voltage operation characteristics. The working temperature range covers -40~+85 ℃, meeting the stable operation requirements in extreme environments. ② Mini Photodiode series The Mini Photodiode series products have a minimum diameter of 1.2mm and are equipped with high-precision and highly reliable gas sealing technology. While the size is reduced, the devices still have high performance and reliability. Mainly used in high-speed optical communication (high-speed fiber optic transceiver modules, fiber optic amplifiers), optical sensing systems (oil well monitoring, power equipment temperature measurement, perimeter security), industrial and military, aerospace and other high-end application fields. ③ Photodiode with pigtail series The SAN-U Optronics  PD with pigtail series products have constructed a product matrix covering multiple scenarios through process differentiation design, using two packaging processes of adhesive and laser welding to accurately match different application needs. The adhesive process relies on an automated mass production system to achieve low-cost and high-efficiency production, especially suitable for cost sensitive large-scale scenarios such as optical communication equipment; The laser welding process uses gold tin eutectic welding technology to form stable connections through intermetallic compound bonding, which can meet the strict reliability requirements of industrial applications. This product can be widely used in fields such as optical communication and fiber optic sensing. ④ The TapPD series The TapPD series of products integrates a splitter and a detector into a compact package, enabling real-time, non-destructive sampling and monitoring of optical signals without interrupting the main optical path signal transmission, thus ensuring stable signal transmission. The products are primarily used in fiber optic communication transmitters, fiber optic amplifiers, optical power meters, medical lasers, and other fields. ⑤ The ArrayPD device series   The ArrayPD device series, through its array design, achieves higher detection efficiency and faster response speed. This product is suitable for high-end applications such as lidar and medical imaging, providing strong technical support for the development of related industries. CORE PARAMETERS COMPARISON After extensive testing and comparison between SAN-U's self-developed Photodiode chip and well-known foreign chips, as well as customer testing and feedback, it is found that SAN-U's chip has lower dark current compared to foreign Photodiode chips, while other parameters and performance are on par or better than those of foreign chips. LOCALIZATION ACCELERATES SELF-CONTROL SAN-U Optronics  has been deeply involved in the field of optoelectronics for over 20 years, with a full industrial chain layout of "chip design - packaging and testing - module application". Currently, with the accelerated construction of AI computing power centers, the accelerated layout of in-vehicle optical communication and 10-gigabit networks, the demand for optical communication devices is experiencing explosive growth. SAN-U Optronics  is precisely positioning itself to seize these market opportunities.   Fully leveraging the industrial advantages of Xiamen's local optoelectronic semiconductors, we have linked up with chip manufacturing enterprises around Xiamen to promote regional industrial collaboration. Downstream, we provide cost-effective products to downstream manufacturers, playing a role in strengthening and complementing the supply chain in the field of optoelectronic semiconductors.

The grand opening of CIOE 2025 in Shenzhen CHINA INTERNATIONALOPTOELECTRONIC EXPO From September 10th to 12th, 2025, the 26th China International Optoelectronic Exposition (CIOE) was grandly held at the Shenzhen International Convention and Exhibition Center. Themed "Connecting Everything with Light, Enabling the Future with Intelligence", this edition of the exhibition gathered over 3,800 high-quality optoelectronic enterprises from around the world, covering eight core sectors including information and communication, precision optics, and laser intelligent manufacturing.   Image丨The booth of SAN-U Optronics Station is bustling with visitors On-site booth · Negotiating cooperation Xiamen SAN-U Optronics Co., Ltd. showcased multiple innovative technologies and products at this event, joining industry colleagues in celebrating this annual feast of optoelectronic technology and industrial innovation. During the three-day exhibition, SAN-U Optronics highlighted the company's latest products and technological breakthroughs in the field of optical communication. 01 Self-developed high-reliability chip detectors and components Image丨Self-developed high-reliability chip detectors and components The company exhibited a series of self-developed chip detectors: MiniPD (TO12/18/25), Tap PD series products, PD Array, etc. These products have transitioned from import substitution to export success, becoming leaders in the segmented market. These products are widely used in optical fiber amplifiers, optical power devices, and sensing and detection fields, attracting a large number of professional visitors from both domestic and international markets to stop and engage in discussions. Image丨Mini PD series of products 02 High-speed silicon photonics engine packaging foundry SAN-U Optronics has brought a high-speed silicon photonics engine packaging foundry solution, which is applied to the 400G/800G high-speed silicon photonics module series. It has been optimized and designed for data center interconnection applications in the context of the explosive demand for AI computing power, helping to promote AI development. Image丨High-speed silicon photonics engine packaging foundry 03 Laser sensing application solution This time, the company has specially set up a display area for sensing modules: lidar sensing modules, methane gas detection modules, and drone ranging modules. It showcases the company's technological layout in emerging application fields. These modules are mainly targeted at intelligent driving, household gas safety, and industrial sensing applications, reflecting the strategic direction of SAN-U Optronics' product expansion from the communication field to the sensing field. Image丨On-site booth, discussing cooperation, and deep exploration   During the exhibition, multiple industry, application, academic, and international conferences were held concurrently, providing valuable technical and market insights for SAN-U Optronics. The company's representatives participating in the conferences engaged in in-depth discussions with industry experts on the development trends of optical communication technology driven by AI computing power. During the technical exchanges, it was discovered that driven by AI computing power, 800G is being rapidly deployed, 1.6T is gradually maturing, silicon photonics has achieved a market share of 30% to 40%, and CPO is getting closer and closer to large-scale commercialization. These trends are highly aligned with SAN-U Optronics' product planning direction, strengthening the company's determination to vigorously invest in the research and development of high-speed products.   During the exhibition, SAN-U Optronics received multiple potential customers from various fields such as communication, sensing, and military industry across the country, and conducted preliminary negotiations on specific project cooperation. SAN-U Optronics also engaged in technical exchanges with several research institutes, exploring the possibility of joint technology development. Image丨2025CIOE SAN-U Optronics Booth With the successful conclusion of the exhibition, Although this grand event, which gathered global optoelectronic wisdom, has come to a temporary end, However, SAN-U Optronics has never stopped exploring the frontiers of technology. In the future, we will always take technological innovation as our core driving force, Seize market opportunities with a faster response speed, Empower customer needs with a superior service experience, Lay a solid foundation for development with more reliable product quality, Continuously breaking through the boundaries of technological imagination. We are eagerly looking forward to meeting our industry colleagues again, Continuously deliver higher-quality optoelectronic products and solutions to the global market, Join hands with industry partners to embark on a new journey, Jointly promote the innovative application of optoelectronic technology and high-quality development of the industry!

            Reveal the optical communication                  device production line                  SAN-U Optronics 10,000 clean room                                SAN-U Optronics           10,000 clean standards, casting high-speed optical communication core cornerstone   In the era of 5G/6G and Al arithmetic outbreak, every microsecond of optical signal transmissioncarries the accurate delivery of massive data. As a supplier of core devices for high-speed opticacommunication, San-U Optronics builds a precision manufacturing environment for semiconductor lasersdetectors and optical transceiver components with 10,000 cleanliness standards to ensure the efficient andstable operation of communication links.