Location History:
- Spring Valley Township, OH (US) (2007 - 2009)
- Greene, OH (US) (2009)
Company Filing History:
Years Active: 2007-2009
Title: The Innovative Contributions of Donald Fisher
Introduction
Donald Fisher is a notable inventor based in Spring Valley Township, OH (US). He has made significant contributions to the field of laser communication technology, holding a total of 4 patents. His work focuses on enhancing communication systems through innovative techniques and architectures.
Latest Patents
Fisher's latest patents include a groundbreaking technique for acquiring and tracking terminals in a free-space laser communication system. This method involves exchanging beacon laser beams between terminals to facilitate data communication. The beacon laser beams used for acquisition have a greater beam divergence than those used for tracking. Gimbals provide coarse steering of the data laser beams, while steering mirrors offer fine adjustments. Additionally, GPS position data exchanged via an RF link can be utilized for the initial pointing of the beacon laser beams.
Another significant patent is for a free-space communication transceiver. This device includes a telescope for transmitting and receiving laser beams, a tunable laser transmitter for generating a transmit laser beam modulated with data, and a tunable optical receiver for processing the received laser beam. The transceiver supports full-duplex operation by allowing the transmit and receive laser beams to operate at different wavelengths. The beamsplitter employs a tunable etalon filter to adjust the wavelength-dependent transmission characteristics.
Career Highlights
Donald Fisher is currently associated with Itt Manufacturing Enterprises, Inc., where he continues to innovate in the field of laser communication. His work has been instrumental in advancing technologies that enhance communication efficiency and reliability.
Collaborations
Fisher has collaborated with notable coworkers such as James A Cunningham and Dean S Grinch, contributing to various projects that push the boundaries of laser communication technology.
Conclusion
Donald Fisher's contributions to laser communication technology exemplify the spirit of innovation. His patents reflect a deep understanding of the complexities involved in communication systems, paving the way for future advancements in the field.