Location History:
- Berkeley Heights, NJ (US) (1987)
- Piscataway, NJ (US) (1988)
Company Filing History:
Years Active: 1987-1988
Title: The Innovations of Donald J. Harter
Introduction
Donald J. Harter is a notable inventor based in Berkeley Heights, NJ (US). He has made significant contributions to the field of laser technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of Harter's latest inventions is the Optical Limiter. This optical device stabilizes the power in a continuous wave (cw) laser beam by utilizing a material whose absorption coefficient increases with increasing incident intensity. The device serves as both an energy limiter and a pulse shortener for pulsed lasers. It can be positioned either within the laser cavity or externally. In another embodiment, it is integrated into the cavity of a passively mode-locked laser, allowing mode-locking with laser materials that possess high gain-saturation energy. Suitable materials for this device include Cr-doped crystalline solids and organic solutions, such as laser dyes and saturable absorber dyes.
Another significant patent is the Multi-Resonator Switching Laser. This invention comprises a laser medium and multiple resonators, along with mechanisms for switching coherent radiation from one resonator to another. If one of the resonators incorporates appropriate loss means, the laser can achieve self-injection locking, providing high-power, single-longitudinal mode radiation. Additionally, this laser can produce successive pulses that are separated by short time intervals and exhibit different characteristics. The invention also includes a phase conjugate laser and an improved ring laser.
Career Highlights
Donald J. Harter is associated with Allied Corporation, where he has been able to apply his innovative ideas in practical applications. His work has contributed to advancements in laser technology, enhancing the capabilities and functionalities of laser systems.
Collaborations
Harter has collaborated with notable colleagues, including Jen-Jye Yeh and Michael L. Shand. Their combined expertise has likely fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Donald J. Harter's contributions to laser technology through his patents reflect his dedication to innovation and excellence in the field. His work continues to influence advancements in optical devices and laser systems.
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