Company Filing History:
Years Active: 2010-2012
Title: Colby Fitzgerald: Innovator in Vertical Cavity Surface Emitting Lasers
Introduction
Colby Fitzgerald is a notable inventor based in Allen, TX (US). She has made significant contributions to the field of laser technology, particularly in the development of vertical cavity surface emitting lasers (VCSELs). With a total of 2 patents to her name, Fitzgerald continues to push the boundaries of innovation in her field.
Latest Patents
Fitzgerald's latest patents include a groundbreaking design for a vertical cavity surface emitting laser featuring multiple top-side contacts. This innovative VCSEL incorporates undoped mirrors, which enhance its performance. The design includes an essentially undoped bottom distributed Bragg reflector (DBR) mirror formed on a substrate. A periodically doped first conduction layer region is created on the bottom DBR mirror, which is heavily doped at a location where the optical electric field is at a minimum. An active layer, consisting of quantum wells, is positioned on the first conduction layer region. Additionally, a periodically doped second conduction layer region is connected to the active layer, which is also heavily doped where the optical electric field is at a minimum. An aperture is formed in the epitaxial structure above the quantum wells, and a top mirror is coupled to the periodically doped second conduction layer region. This top mirror is essentially undoped and formed in a mesa structure, with an oxide layer surrounding the mesa structure to protect the top mirror during wet oxidation processes.
Career Highlights
Colby Fitzgerald is currently employed at Finisar Corporation, where she applies her expertise in laser technology. Her work has been instrumental in advancing the capabilities of VCSELs, which are widely used in various applications, including data communication and sensing technologies.
Collaborations
Fitzgerald has collaborated with notable colleagues such as Ralph Herbert Johnson and R. Scott Penner. These partnerships have contributed to her innovative work and the successful development of her patents.
Conclusion
Colby Fitzgerald is a pioneering inventor whose work in vertical cavity surface emitting lasers has made a significant impact in the field of laser technology. Her contributions continue to inspire advancements in this critical area of innovation.