Location History:
- Ottawa, CA (2008 - 2022)
- Wuhan, CN (2022)
- Nepean, CA (2019 - 2023)
Company Filing History:
3 out of 4 
3 out of 68 
2 out of 115 
Years Active: 2008-2023
Title: Innovations by Lijie Qiao in Optical Communication
Introduction
Lijie Qiao, based in Ottawa, Canada, is a prominent inventor known for his substantial contributions to the field of optical communication. With a remarkable portfolio of 22 patents, Qiao has consistently pushed the boundaries of technology through innovative designs and solutions.
Latest Patents
Among his latest patents, Qiao has developed an "Optical amplifier using a single input pump laser and having a switchable gain range for fiber-optic communication." This innovative optical amplifier comprises two amplifier stages, a circulator, and an output stage. The first amplifier stage boosts an input optical signal, providing an amplified signal that is transmitted via the circulator to the second amplifier stage. The second stage further amplifies this signal and returns a modified optical signal, enhancing communication efficiency.
Another noteworthy patent is the "Add drop structure," an optical circuit that features a multicast-and-select (MCS) switch and multiple optical selective devices. This circuit allows for the selection of a specific optical channel by dynamically blocking certain wavelengths while allowing others to pass. The system includes an optical amplifying array, where each amplifier is optically coupled to a selective device, ensuring optimal performance in light transmission.
Career Highlights
Throughout his career, Lijie Qiao has worked with various organizations that support his innovative pursuits. Notably, he has contributed his expertise to Bti Photonic Systems Inc., where he applied his skills in developing cutting-edge optical technologies.
Collaborations
Collaboration has been a cornerstone of Qiao's work. He has had the opportunity to work alongside talented professionals such as Paul J. Vella and Qinlian Bu. These collaborations have played a vital role in fostering innovation and addressing key challenges in the optical communication field.
Conclusion
Lijie Qiao's contributions to optical technology underscore his position as a leading inventor in the field. With an impressive number of patents and a commitment to innovation, Qiao continues to advance the capabilities of optical communication, shaping the future of the industry. His work not only enhances communication efficiency but also inspires future generations of inventors and engineers.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.