Young-Gu Ju

Title: Young-Gu Ju: Innovator in Semiconductor Laser Technology

Introduction

Young-Gu Ju is a prominent inventor based in Taejon, South Korea. He has made significant contributions to the field of semiconductor laser technology, holding a total of 2 patents. His work focuses on improving the efficiency and performance of laser devices.

Latest Patents

One of his latest patents is titled "Long wavelength surface-emitting semiconductor laser device and method for manufacturing the same." This invention addresses the challenges of absorption loss in p-type doped layers and aims to reduce scattering loss in mirror layers. The device comprises a first conductive type of semiconductor substrate, a bottom mirror layer, an active layer, an electron leakage barrier layer, a current induction layer, a current extension layer, and a top mirror layer with specific dopant diffusion regions.

Another notable patent is the "Folded cavity laser." This invention includes a substrate with a distributed Bragg reflector (DBR) and an active medium for amplifying the laser beam. It features first and second mirrors on either side of the active medium to create a horizontal cavity, reflecting the amplified laser beam back to the DBR. Additionally, a microlens is incorporated to make the amplified laser beam astigmatic after passing through.

Career Highlights

Young-Gu Ju is affiliated with the Electronics and Telecommunications Research Institute, where he continues to advance his research and development in semiconductor technologies. His innovative work has positioned him as a key figure in the field.

Collaborations

He has collaborated with notable colleagues, including Byueng-Su Yoo and O-Kyun Kwon, who contribute to his research endeavors.

Conclusion

Young-Gu Ju's contributions to semiconductor laser technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of the complexities involved in laser device design and manufacturing.