Zhiwu Chang

Title: Zhiwu Chang: Innovator in Optical Communication Technologies

Introduction

Zhiwu Chang is a prominent inventor based in Shenzhen, China. He has made significant contributions to the field of optical communication, holding a total of 2 patents. His work focuses on developing advanced technologies that enhance the efficiency and flexibility of optical systems.

Latest Patents

One of Zhiwu Chang's latest patents is the Tunable Optical Add/Drop Multiplexer (T-OADM). This innovative application provides a tunable optical add/drop multiplexer that utilizes a beam adjustment apparatus to change the incident angle of an emitted beam onto an optical filter. The optical filter then splits the incident beam into a transmitted beam and a reflected beam. The beam adjustment apparatus further adjusts the transmission directions of both beams, allowing for a flexible and controllable T-OADM apparatus. This technology is particularly applicable in the optical communication field, facilitating add/drop multiplexing of tributary signals in long-haul backbone and metropolitan area networks.

Another notable patent is the Grating and Grating Characteristic Adjustment Method and Device. This patent describes example gratings and methods for adjusting grating characteristics. One example includes a grating with a first optical waveguide region, a second optical waveguide region, and an arrayed waveguide region containing multiple optical waveguides. The grating allows for changes in the refractive index of the optical waveguides, providing versatility in optical applications.

Career Highlights

Zhiwu Chang is currently employed at Huawei Technologies Co., Limited, a leading global provider of information and communications technology (ICT) infrastructure and smart devices. His work at Huawei has positioned him at the forefront of optical communication innovations.

Collaborations

Zhiwu Chang has collaborated with notable colleagues, including Shiyi Cao and Kui Ouyang. These partnerships have contributed to the advancement of optical technologies and the successful development of his patents.

Conclusion

Zhiwu Chang's contributions to optical communication technologies through his innovative patents demonstrate his expertise and commitment to advancing the field. His work continues to influence the development of efficient optical systems, making a significant impact on the industry.