Sung-Bock Kim

Title: **Innovative Contributions of Inventor Sung-Bock Kim**

Introduction

Sung-Bock Kim is a distinguished inventor based in Daejeon, South Korea. He has made significant strides in the field of semiconductor laser technologies, contributing eight patents that reflect his innovative spirit and technical expertise. His work focuses on advancing optical communication systems through high-performance laser diodes.

Latest Patents

Among his latest inventions is the **Self-mode locked multi-section semiconductor laser diode**. This state-of-the-art laser diode incorporates a complex-coupled Distributed Feedback (DFB) laser section, which consists of a grating and an active structure for specially controlling the intensity of oscillating laser light. It is designed to maintain oscillation in a single mode, featuring an external cavity with a phase control section and an amplifier section. The use of a passive waveguide allows for precise control over phase variation, while the active structure regulates the strength of feedback laser light. This innovative design enables the generation of optical pulses with a tuning range in the tens of GHz, making applications in clock recovery for 3R regeneration in optical communication feasible.

Another recent invention is the **Multi DFB laser diode**, which is engineered to generate spontaneous pulses. This multi-section laser consists of first and second DFB sections, each with a substrate featuring a diffraction grating and an active layer. The inclusion of a phase tuning section enhances its functionality by allowing independent control of multiple operational parameters. These innovations highlight Kim's commitment to pushing the boundaries of current laser technology.

Career Highlights

Sung-Bock Kim is associated with the Electronics and Telecommunications Research Institute (ETRI), where he has honed his skills and contributed to numerous developments in laser diode technologies. His dedication to research and innovation in this cutting-edge field has positioned him as a leading figure in semiconductor optics. His inventive contributions significantly aid advancements in communication technologies.

Collaborations

Throughout his career, Sung-Bock Kim has collaborated with talented coworkers such as Kyung-Hyun Park and Dae-Su Yee. These partnerships have been instrumental in fostering a dynamic and innovative environment at ETRI, further enhancing the impact of their collective research efforts.

Conclusion

Sung-Bock Kim's impressive portfolio of patents and his role in the Electronics and Telecommunications Research Institute reflect his invaluable contributions to the field of optical communications. His innovative inventions continue to pave the way for enhanced technologies, demonstrating the crucial intersection of research, collaboration, and invention in shaping the future of telecommunications.