Company Filing History:
1 out of 11,315 
1 out of 131,744 
Years Active: 1999-2003
Title: Bo-Hun Choi: Innovator in Fiber Amplification and Grating Technology
Introduction
Bo-Hun Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of optical technology, particularly in fiber amplification and grating manufacturing. With a total of 2 patents, his work has advanced the efficiency and functionality of optical devices.
Latest Patents
One of Bo-Hun Choi's latest patents is the "L-band erbium-doped fiber amplifier pumped by 1530 nm-band pump." This invention presents an improved long wavelength-band EDFA (L-band EDFA) that includes an input terminal for receiving signal light, a pumping unit for pumping a 1,530 nm wavelength band pumping light, a WDM coupler for multiplexing the signal light and the pumping light, and an EDF pumped by a 1,530 nm wavelength band pumping light for amplifying the signal light. Compared to conventional 1,480 nm pumping, this EDFA exhibits about two times higher power conversion efficiency.
Another notable patent is the "Amplitude mask and apparatus for manufacturing long period grating." This invention features an amplitude mask used in a long period grating filter manufacturing apparatus. It includes a metal substrate with a periodic transmission area for selectively transmitting light and a non-transmission area through which light does not pass. Additionally, a piezo-electric transducer is located on the non-transmission area of the metal substrate to change the period of the periodic transmission area.
Career Highlights
Bo-Hun Choi has worked with esteemed organizations such as the Electronics and Telecommunications Research Institute and Samsung Electronics Co., Ltd. His experience in these companies has allowed him to develop innovative solutions in the field of telecommunications and optical technologies.
Collaborations
Throughout his career, Bo-Hun Choi has collaborated with notable colleagues, including Moo-Jung Chu and Seung-Kwan Kim. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Bo-Hun Choi's contributions to optical technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in fiber amplification and grating technology.