Research & Innovation

Innovation at ZTT: Powering Advanced Manufacturing

Innovation is at the heart of ZTT. Driven by cutting-edge R&D and a focus on high-end specialization, we deliver breakthroughs in new energy, smart grids, ocean engineering, and communications—powering progress in advanced manufacturing.

Digital Manufacturing Projects Investment

$ M USD

Patents

Research Centers

Industry Standards Participated

National-Level R&D Platforms

R&D Personnel

Research Centers

ZTT pioneered China’s first provincial-level enterprise research institute for optoelectronic transmission, featuring the Shanghai Innovation Center and six research institutes, and has established R&D collaboration platforms with institutions such as the Chinese Academy of Sciences and Tsinghua University.

Innovative Products

1.25G SFP 10km 1310nm

The transceiver is intended for 1310nm reach service up to 1.25Gb/s communications equipment where low-cost, extraordinary performance and reliability are essential. For different transmission distance with different optical power and sensitivity spec. The device is Class I laser safety compliant.

10G SFP+ 10km BIDI

The SFP+ BIDI transceiver is designed to transmit and receive optical data over SMF for link length 10km.The SFP+ BIDI module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI.

10G SFP+ 10km 1310nm

The SFP+ transceiver provides 10G Base-LR throughput up to 10km over single-mode fiber (SMF) using a wavelength of 1310nm via an LC connector. Digital optical monitoring (DOM) support is present to allow access to real-time operating parameters.The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI.

40G QSFP+ 2km CWDM4

This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals , by a driven 4-wavelength Distributed Feedback Laser (DFB) array. The light is combined by the MUX parts as a 40Gb/s data, propagating out of the transmitter module from the SMF. The receiver module accepts the 40Gb/s CWDM optical signals input, and de-multiplexes it into 4 individual 10Gb/s channels with different wavelength. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified first by a TIA and a post amplifier.

100G QSFP28 2km CWDM4

This product is a transceiver module designed for 2km optical communication applications. The design is compliant to 1000GBASE CWDM4 MSA standard. The module converts 4 inputs channels (CH) of 25Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 100Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 100Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data. The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module. Host FEC is required to support up to 2km fiber transmission. The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.

400G QSFP-DD 10km LWDM4

The 400G PAM4 QSFP-DD LR4 optical transceiver is intended for 10km reach up to 4x 106Gbps PAM4 single mode 400Gbps communications equipment where cost effective, extraordinary performance and reliability are essential. The product is designed for 10km links Application of Data Center which meet 400G LR4 specification. On the transmitter side, 8-channel electrical lanes which is capable of 53.125Gbps PAM4 data per lane converted into 4-channel 106.25Gbps PAM4 optical lane by gearbox, and multiplex them into one single mode fiber .On the receive side, 425Gbps optical Signal was de-multiplexed into 4-channel 106.25Gbps PAM4 optical lane, and converted into 8-channel 53.125Gbps PAM4 electrical lanes by gearbox. Module-level digital diagnostic functions are available via an I2C interface, as specified by the QSFP-DD MSA.

Latest Innovative Technology

Parking lot ROOMTOP IN-BUILDING SOLUTION

Roomtop leaky cable inherits the functionality of traditional leaky cables and is an innovation to DAS Solution.

It can simultaneously transmit and receive signals, with a function equivalent to “feeder+passive equipment+antenna”.

Network compatibility can support 700-3700MHz.

Cable Tunnel Integrated Monitoring System

The Cable Tunnel Integrated Monitoring System adopts an integrated architecture covering the sensing, communication, and platform layers. It seamlessly integrates more than 16 types of monitoring devices, including partial discharge, sheath current, and temperature monitoring systems. Supporting multiple communication protocols, the platform enables unified access, management, and coordination of all connected devices, eliminating traditional data silos.

By centralizing and analyzing monitoring data on a single platform, the system provides a comprehensive, real-time view of tunnel conditions and asset status, enabling operators to monitor, manage, and respond efficiently without switching between multiple systems. This significantly improves data interoperability, streamlines maintenance operations, and supports closed-loop asset management.

The result is a smarter, more efficient approach to cable tunnel operation and maintenance, enhancing grid reliability and strengthening the safety of urban power networks.

Cell Technology

Long-life Material System，High Efficiency Electrode，Trapezoidal Lug & Butterfly Welding，Foil Embossing & Ceramic Coating

High-Voltage, Ultra-Deepwater Composite Umbilical Systems: Steel Tube & Power Integration

Development of the world’s first high-voltage, ultra-deepwater, wet-design power steel tube composite umbilical and its integrated accessories. This initiative conducts theoretical and experimental research on AC corrosion within steel tubes and the temperature rise of internal units during energized operation. Furthermore, it implements coupled “high hydrostatic pressure + high voltage” testing on power cable cores to verify the impact of the umbilical’s radial contraction under deep-sea pressure on its electrical performance.

Innovation Test Platform

Laboratory overview

Lorem ipsum dolor sit amet. Aut iste ipsum a ipsum mollitia ut similique aperiam quo sequi voluptatem non assumenda expedita. Qui inventore neque cum ipsam blanditiis sed rerum recusandae…Lorem ipsum dolor sit amet. Aut iste ipsum a ipsum mollitia ut similique aperiam quo sequi voluptatem non assumenda expedita. Qui inventore neque cum ipsam blanditiis sed rerum recusandae…

Laboratory overview

Qualifications
and Certifications