John Hegarty

Title: John Hegarty: Innovator in Optical Systems

Introduction

John Hegarty is a notable inventor based in Gillette, NJ (US), recognized for his contributions to optical systems. He holds three patents that showcase his innovative approach to communications and sensing technologies. His work has significantly impacted the field of optical engineering.

Latest Patents

Hegarty's latest patents include a waveguide-containing communications and sensing system. This optical system utilizes a waveguide, such as an optical fiber, allowing optical signals to be noninvasively coupled into the waveguide at any point along its length. The system achieves this by coupling substantially constant intensity electromagnetic radiation into the waveguide and directing an energy beam, such as electromagnetic radiation or heat, onto the waveguide. This process induces absorption of the guided electromagnetic radiation, producing the desired optical signal.

Another significant patent involves optical systems with antireciprocal polarization rotators. This invention is applicable in optical fiber communication systems or optical mass storage devices. The rotator compensates for linear birefringence effects and includes multiple material regions that subject incident light to elliptic birefringences. The unique design of these regions allows for varying signs and magnitudes of birefringence, enhancing the performance of optical isolators and circulators.

Career Highlights

John Hegarty has made substantial contributions to the field while working at American Telephone & Telegraph Co. and AT&T Bell Laboratories. His innovative work has led to advancements in optical communication technologies, making him a respected figure in the industry.

Collaborations

Throughout his career, Hegarty has collaborated with notable coworkers, including Raymond Wolfe and Leonard G. Cohen. These partnerships have fostered a collaborative environment that has driven innovation in their projects.

Conclusion

John Hegarty's work in optical systems has made a significant impact on the field of communications and sensing technologies. His patents reflect a deep understanding of optical engineering and a commitment to innovation. His contributions continue to influence advancements in the industry.