Company Filing History:
Years Active: 2017-2022
Title: Innovations of Hongdang He
Introduction
Hongdang He is a notable inventor based in Shanghai, China. He has made significant contributions to the field of optical power monitoring and detection systems. With a total of 4 patents, his work showcases innovative approaches to optical technology.
Latest Patents
One of his latest patents is titled "Optical power monitoring using dual modulation." This patent describes a system and method for measuring optical power. The optical system includes a module that generates a secondly modulated signal based on the modulation of a firstly modulated signal with an amplitude modulated signal. The firstly modulated signal contains data that is modulated for transmission by a laser diode array. The system also features a photodiode that generates a current based on the optical sensing of the laser diode array, which outputs optical power driven by the secondly modulated signal. Another significant patent is the "Differential amplitude detector." This embodiment includes an idle state detection circuit with a bias current loop, a rectifying circuit loop, a voltage translating loop, and a filter circuit. The bias current loop allows the rectifying diode to detect an alternating current signal received from a transmitter. The circuit stores differential peak-to-peak amplitude information and converts it into a single-end voltage signal.
Career Highlights
Hongdang He has worked with prominent companies such as Finisar Corporation and II-VI Delaware, Inc. His experience in these organizations has contributed to his expertise in optical technologies and systems.
Collaborations
He has collaborated with notable individuals in his field, including his coworker Qin Yue Chen.
Conclusion
Hongdang He is a distinguished inventor whose work in optical power monitoring and detection systems has led to valuable innovations. His contributions continue to impact the field positively.