Company Filing History:
Years Active: 2004-2009
Title: The Innovations of Xuewen Shu
Introduction
Xuewen Shu is a notable inventor based in Birmingham, GB. He has made significant contributions to the field of optical technologies, holding a total of 3 patents. His work primarily focuses on Gires-Tournois etalons and dispersion compensators, showcasing his expertise in optical fiber technology.
Latest Patents
One of Xuewen Shu's latest patents involves a Gires-Tournois etalon (GTE) that comprises an optical fiber featuring a primary chirped fiber Bragg grating (FBG). This innovative design includes an RF signal generator, a piezoelectric transducer, and a glass horn for coupling an acoustic wave into the fiber. The acoustic wave induces a periodic compression within the fiber, leading to a low-frequency periodic refractive index modulation within the grating section. This process generates two side frequency components for each high-frequency component of the FBG, resulting in the excitation of two secondary gratings with different central wavelengths. The free spectral range of the GTE can be adjusted by varying the frequency of the acoustic wave, while the reflectivity of the excited secondary gratings can be modified by adjusting the amplitude of the acoustic wave.
Another embodiment of his invention provides a dispersion compensator comprising two Gires-Tournois etalons (DGTEs). These DGTEs utilize a cladding mode suppressed optical fiber, including an etalon section with both weakly and strongly reflective optical waveguide gratings. The chirped FBGs are arranged to define an etalon cavity, allowing for a linearly varying dispersion over a selected optical bandwidth. The first DGTE has a positive dispersion slope, while the second DGTE has a negative dispersion slope, ensuring that the dispersion compensator maintains a constant dispersion across the selected bandwidth.
Career Highlights
Xuewen Shu has worked with esteemed institutions such as Aston University and Aston Photonic Technologies Limited. His experience in these organizations has allowed him to further develop his innovative ideas and contribute to advancements in optical technologies.
Collaborations
Throughout his career, Xuewen Shu has collaborated with notable colleagues, including Catherine Anne Sugden and Ian Bennion. These partnerships have played a crucial role in enhancing his research and development efforts.
Conclusion
Xuewen Shu's contributions to the field of optical technologies through