Company Filing History:
Years Active: 2017-2019
Title: Innovations in Photonic Devices by Jonathan B Bradley
Introduction
Jonathan B Bradley is a prominent inventor based in Boston, MA. He has made significant contributions to the field of photonics, particularly through his innovative designs and methods for photonic devices. With a total of 2 patents to his name, his work is paving the way for advancements in silicon photonic systems.
Latest Patents
His latest patents focus on integrated erbium-doped waveguide lasers designed for silicon photonic systems. These lasers feature laser cavities defined by distributed Bragg reflectors (DBRs) formed in silicon nitride-based waveguides. The DBRs include grating features defined by wafer-scale immersion lithography, with an upper layer of erbium-doped aluminum oxide deposited as the final step in the fabrication process. The resulting inverted ridge-waveguide achieves high optical intensity overlap with the active medium for both the 980 nm pump (89%) and 1.5 µm laser (87%) wavelengths, with a pump-laser intensity overlap exceeding 93%. The output powers can reach 5 mW or higher, demonstrating lasing at widely spaced wavelengths within both the C- and L-bands of the erbium gain spectrum (1536, 1561, and 1596 nm).
Career Highlights
Jonathan is affiliated with the Massachusetts Institute of Technology, where he continues to push the boundaries of research in photonics. His work has garnered attention for its potential applications in various technological fields.
Collaborations
He has collaborated with notable colleagues, including Purnawirman Purnawirman and Michael Robert Watts, contributing to a dynamic research environment that fosters innovation.
Conclusion
Jonathan B Bradley's contributions to photonic devices exemplify the intersection of creativity and technology. His patents reflect a commitment to advancing the field and enhancing the capabilities of silicon photonic systems.