Location History:
- Cambridge, MA (US) (2007)
- Dorchester, MA (US) (2006 - 2010)
Company Filing History:
3 out of 8,396 
3 out of 54,858 
Years Active: 2006-2010
Title: Innovator Donghwan Ahn: Shaping the Future of Optoelectronics
Introduction
Donghwan Ahn, based in Dorchester, MA, is a prominent inventor known for his contributions to the field of optoelectronics. With a remarkable portfolio of 5 patents, his innovative work pushes the boundaries of optical technology and photodetection. Ahn's latest patents exemplify his commitment to advancing optical engineering.
Latest Patents
Among Ahn's latest inventions is an **Optical Grating Coupler**, which involves the strategic placement of an optical grating on a waveguide to redirect light through the opposite side. This innovation presents several embodiments, including a configuration where the waveguide, grating, and optical sensor form a single monolithic structure. Another embodiment introduces an absorbing layer directly connected to the waveguide, improving the efficiency of the grating through high index contrast.
Additionally, he developed a **Vertically-Integrated Waveguide Photodetector Apparatus** and its related coupling methods. This invention focuses on high-speed optoelectronic devices that feature a waveguide tightly integrated with a photodetector. Utilizing methods compatible with CMOS processing, his designs primarily use single-crystal silicon for the waveguide and germanium-rich silicon-germanium alloys for the photodetector.
Career Highlights
Donghwan Ahn has had an illustrious career, working with renowned institutions such as the **Massachusetts Institute of Technology (MIT)** and **Intel Corporation**. His experiences at these prestigious organizations have significantly contributed to his development as an innovator and inventor in the optoelectronic field.
Collaborations
Throughout his career, Ahn has collaborated with esteemed professionals, including Jurgen Michel and Lionel Cooper Kimerling. These partnerships have not only enriched his understanding of technology but have also led to the creation of impactful innovations in optoelectronics.
Conclusion
Donghwan Ahn's inventive spirit and technical expertise continue to drive advancements in the realm of optical technologies. With his latest patents, he demonstrates a clear vision for the future of optoelectronics, solidifying his position as a key figure in this transformative field. As technology progresses, Ahn's contributions will undoubtedly play a crucial role in shaping the landscape of optical engineering.