Location History:
- Redwood City, CA (US) (1988)
- Palo Alto, CA (US) (1988 - 1989)
Company Filing History:
Years Active: 1988-1989
Title: Innovations of William P Risk
Introduction
William P Risk is a notable inventor based in Palo Alto, CA (US). He has made significant contributions to the field of optical technology, holding a total of 5 patents. His work primarily focuses on acousto-optic devices, which have applications in various optical communication systems.
Latest Patents
One of his latest patents is titled "Acousto-optic fiber-optic frequency shifter using periodic contact with." This invention involves the propagation of an acoustic wave colinearly with optical signals in an optical fiber. The design allows for the coupling of an optical signal between different propagation modes within the fiber. The acoustic wave is engineered to have a wavelength that is shorter than the optical beat length, facilitating phase-matching between the optical modes. This innovative approach enables greater shifts in optical frequency while utilizing a colinearly propagating acoustic wave.
Another significant patent is the "Optical fiber acousto-optic amplitude modulator." This device couples light between two orthogonal polarization codes of a birefringent fiber. The modulation is achieved by applying synchronized acoustic surface waves to the fiber, which dynamically alters the coupling of light between the polarization modes. A static biasing force is also applied to ensure that approximately 50% of the light input is coupled into the desired mode.
Career Highlights
William P Risk is affiliated with Leland Stanford Junior University, where he continues to engage in research and development in optical technologies. His work has contributed to advancements in fiber optics and acousto-optic devices, enhancing the capabilities of optical communication systems.
Collaborations
Throughout his career, William has collaborated with esteemed colleagues such as Gordon S Kino and Herbert J Shaw. These partnerships have fostered innovation and have led to the development of groundbreaking technologies in the field.
Conclusion
William P Risk is a distinguished inventor whose work in acousto-optic technology has paved the way for advancements in optical communication. His contributions, including multiple patents, reflect his commitment to innovation and excellence in the field.