Yongwoo Park

Title: Yongwoo Park: Innovator in Broadband Interferometry

Introduction

Yongwoo Park is a notable inventor based in Rockville, MD (US). He has made significant contributions to the field of broadband interferometry, holding 2 patents that showcase his innovative approach to constructing three-dimensional profiles of targets.

Latest Patents

His latest patents include a "Broadband profiler system and method for constructing a three-dimensional profile of a target." This invention features a three-dimensional profiler that incorporates a broadband radiation source. The interferometric system within this patent utilizes first and second beam splitters, a moving time delay-inducing reflector, and a stationary reflector. This system creates a time-delayed optical sample radiation source and an optical reference incident radiation source. A stationary sample holder receives the optical sample incident radiation, while a reference plane receives the optical reference incident radiation. A detector captures an interference signal from reflected or scattered optical sample radiation and reflected or scattered optical reference radiation. A processor then extracts an optical path difference between the reference plane and the sample, reconstructing a three-dimensional morphology of the sample.

Another significant patent is the "Broadband interferometry and method for measurement range extension by using same." This invention achieves a measurement range extension beyond the coherence length of a light source through local oscillation of the reference beam. This is replicated by cavity multiplication or cascading optical delayed lines with a fiber optic cavity. The method quantifies optical properties such as wavelength group delay, chromatic dispersion, polarization mode dispersion, and model dispersion, which are inserted into the local oscillation of the reference beam. This allows for incremental quantification of the replicated copies of the local oscillation as the number of delayed copies increases, extending the measurement range to the target.

Career Highlights

Yongwoo Park has worked with several companies, including Automated Precision, Inc. and Ap Infosense Limited. His experience in these organizations has contributed to his expertise in the field of optical technologies.

Collaborations

He has collaborated with notable coworkers such as Shuai Sun and Kam Chiu Lau, further enhancing his innovative work in broadband interferometry.

Conclusion

Yongwoo Park's contributions to the field of broadband interferometry through his patents and career highlights demonstrate his commitment to innovation and advancement in optical technologies. His work continues to influence the industry and inspire future developments.