Luis Figueroa

Title: **Luis Figueroa - Innovator in Superluminescent Diode Technology**

Introduction

Luis Figueroa, an accomplished inventor based in Torrance, CA, has made significant contributions to the field of semiconductor technology. With a total of four patents to his name, Figueroa's work primarily focuses on advancements in light-emitting diodes (LEDs), particularly superluminescent diodes.

Latest Patents

Figueroa's latest inventions include the **Angled Stripe Superluminescent Diode**, a semiconductor light-emitting device that is structured similarly to an index-guided laser. The unique design features waveguide channels at a specific small angle relative to the direction normal to the cleaved facets. This innovative angle of inclination minimizes total internal reflection within the channels, ensuring that lasing does not occur, even at high current and power levels. The device is capable of producing over 30 mW of output power while maintaining a large spectral bandwidth and a small coherence length.

Another noteworthy patent is the **Superluminescent Light-Emitting Diode and Related Method**. This invention allows for an increase in spectral width of output in correlation with higher optical output power. By structuring the diode to create a non-uniform gain profile across its active layer, Figueroa achieved a broad frequency spectrum that is beneficial for various applications. This innovative approach includes varying the thickness of the active layer as well as adjusting current density through asymmetrical channel configurations or electrical contact strips.

Career Highlights

Figueroa is currently employed at TRW Limited, where his expertise and creativity have been instrumental in fostering innovations in semiconductor technologies. His work in superluminescent diode design has set benchmarks in the industry, contributing to advancements that enhance the efficiency and performance of optical devices.

Collaborations

Throughout his career, Figueroa has collaborated with esteemed colleagues such as Charles B. Morrison and Lawrence M. Zinkiewicz. These partnerships have further enriched his research and development efforts, leading to significant breakthroughs in the technology sector.

Conclusion

Luis Figueroa stands out as an influential inventor in the realm of light-emitting diodes, particularly with his innovative approaches to superluminescent diode technology. His patents reflect a commitment to advancing semiconductor design and functionality, paving the way for future developments in optical applications.