Ping K Tien

Title: The Innovative Contributions of Ping K. Tien

Introduction

Ping K. Tien, hailing from Chatham Township, Morris County, NJ, is a notable inventor whose work has significantly impacted the field of photonics and optoelectronics. With a remarkable portfolio of 10 patents, Tien's innovations reflect his deep understanding of complex optical systems and their applications.

Latest Patents

Among his latest contributions is the patent for the Wavelength Tunable Composite Cavity Laser. This innovative coherent light source utilizes an adjustably controllable reflector to achieve both wavelength tunability and single frequency output. The design incorporates a gain medium coupled to a single-mode fiber, featuring a partially reduced cladding region positioned at a specific distance from the gain medium. A Bragg reflector is strategically formed, either on the reduced cladding region of the fiber or on an external element nearby, facilitating a single resonant optical cavity. This setup enables wavelength tuning through the adjustable period of the Bragg reflector element.

Another significant patent is for a Phototransistor for Long Wavelength Radiation. This photodetector is designed for applications in long wavelengths where silicon typically remains transparent. It comprises a photodiode stage integrated with an amplification stage that utilizes a silicon transistor to amplify the photovoltaic voltage generated by the photodiode stage. In an innovative embodiment, a silicide layer forms the grid of a permeable base transistor, enhancing its functionality.

Career Highlights

Throughout his career, Ping K. Tien has worked with prestigious organizations such as Bell Telephone Laboratories and AT&T Bell Laboratories. His tenure at these institutions honed his skills and provided platforms for his groundbreaking research. Tien's contributions have been instrumental in advancing technologies related to lasers and photodetectors.

Collaborations

In his professional journey, Tien has collaborated with esteemed colleagues, including Albert Anthony Ballman and Robert G. Swartz. These collaborations have enriched his work, resulting in advancements that benefit various fields of technology.

Conclusion

Ping K. Tien stands out as a pivotal figure in the world of innovation, particularly in photonics and optoelectronics. His ten patents exemplify his commitment to advancing technology through inventive solutions. As the industry continues to evolve, Tien's contributions will undoubtedly leave a lasting impact on future advancements.