This inventor holds 2 USPTO granted patents. Top assignee: At&t Bell Laboratories. Active years: 1991.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1991
Title: The Innovations of Carl J McGrath
Introduction
Carl J McGrath is a notable inventor based in Atkinson, NH (US). He has made significant contributions to the field of semiconductor lasers, particularly in applications for optical fiber communication systems. With a total of 2 patents, his work has advanced the technology used in modern communication.
Latest Patents
One of McGrath's latest patents is a method of producing a semiconductor laser adapted for use in an analog system. This advantageous method fabricates lasers suitable for multichannel analog optical fiber communication systems, such as CATV systems. The invention addresses the stringent intermodulation specifications required for lasers in these systems. By utilizing certain readily determinable parameters, McGrath's method simplifies the process of identifying suitable lasers, making it more economical. The method involves measuring the light versus current characteristics of a laser and determining parameters that predict distortion behavior.
Another significant patent is related to an optical sub-carrier multiplex television transmission system. This system employs an amplitude-modulated vestigial-sideband, allowing for linear operation of a laser diode across multiplex frequencies. By limiting leakage current within the laser diode, the system achieves a composite second-order distortion that is significantly reduced, enhancing the quality of the optical output signal.
Career Highlights
Carl J McGrath has worked at AT&T Bell Laboratories, a leading research and development organization. His work there has contributed to advancements in telecommunications technology.
Collaborations
Throughout his career, McGrath has collaborated with notable colleagues, including Charles B Roxlo and Edward J Flynn. Their combined expertise has fostered innovation in the field of optical communications.
Conclusion
Carl J McGrath's contributions to semiconductor laser technology have had a lasting impact on optical fiber communication systems. His innovative methods and patents continue to influence advancements in the telecommunications industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile