Dodd Joseph Gray

Title: Dodd Joseph Gray: Innovator in Cryogenic Optical Technologies

Introduction

Dodd Joseph Gray is a prominent inventor based in San Francisco, CA. He holds a total of 4 patents that showcase his innovative contributions to the field of cryogenic optical technologies. His work has significant implications for enhancing the efficiency and performance of optical devices in cryogenic environments.

Latest Patents

One of his latest patents is titled "Forward-biased modulator for cryogenic optical readout." This invention allows for the optical read-out of cryogenic devices, such as superconducting logic or detector elements, using a forward-biased optical modulator. This modulator is directly coupled to the cryogenic device without any intervening electrical amplifier. The forward-biasing at cryogenic temperatures enables very high modulation efficiency, ranging from 1,000 to 10,000 pm/V. This innovation allows for optical modulation with millivolt driving signals and microwatt power dissipation, significantly reducing the thermal load on the cryostat. Additionally, it increases the communication bandwidth between the cryogenic and room-temperature environments to densities as high as Tbps/mm using wavelength division multiplexing.

Another notable patent is for "Thermo-electrically pumped light-emitting diodes." Contrary to conventional wisdom, which suggests that LEDs should be cooled to increase efficiency, Gray's invention proposes heating the LEDs to enhance their performance. By injecting phonons generated from non-radiative recombination back into the LED's semiconductor lattice, the temperature of the LED's active region is raised. This process promotes thermally assisted injection of holes and carriers, thereby increasing LED efficiency under specific bias conditions.

Career Highlights

Dodd Joseph Gray is affiliated with the Massachusetts Institute of Technology, where he continues to contribute to groundbreaking research and development in optical technologies. His innovative work has positioned him as a key figure in advancing cryogenic optical systems.

Collaborations

Throughout his career, Gray has collaborated with notable colleagues, including Rajeev J Ram and Parthiban Santhanam. These collaborations have further enriched his research and expanded the impact of his inventions.

Conclusion

Dodd Joseph Gray's contributions to cryogenic optical technologies exemplify the spirit of innovation. His patents not only challenge conventional approaches but also pave the way for future advancements in the field. His work continues to inspire and influence the development of