Philomath, OR, United States of America

Joseph G LaChapelle

USPTO Granted Patents = 54 

Average Co-Inventor Count = 2.8

ph-index = 25

Forward Citations = 1,859(Granted Patents)

Forward Citations (Not Self Cited) = 1,836(Oct 12, 2025)


Location History:

  • Corvallis, OR (US) (1990 - 1998)
  • Philomath, OR (US) (1996 - 2024)

Company Filing History:


Years Active: 1990-2025

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54 patents (USPTO):Explore Patents

Title: Joseph G. LaChapelle: Innovator in Optical Technologies

Introduction

Joseph G. LaChapelle, based in Philomath, Oregon, is a prolific inventor recognized for his significant contributions to optical technologies. With a remarkable portfolio that includes 51 patents, LaChapelle has made a notable impact in the fields of photonics and communication systems. His innovative designs address various challenges in light amplification and spectroscopy, showcasing his expertise and creativity.

Latest Patents

Among LaChapelle's latest innovations is the "Master-oscillator power-amplifier (MOPA) light source with optical isolator." This invention features a light source designed to emit an optical signal, incorporating a seed laser diode to generate a seed optical signal and a semiconductor optical amplifier (SOA) to amplify this signal. Crucially, the optical isolator included in the design functions to transmit the seed optical signal while limiting the unwanted light propagation back towards the seed laser diode.

Another noteworthy patent is the "Raman spectroscopy system," which includes a dual-light source configuration to produce beams of light at different frequencies and direct them towards a sample. The system effectively collects the Raman signal generated by the sample, assisted by an optical receiver that includes a wavelength-tunable laser, allowing for adjustable detection frequencies.

Career Highlights

LaChapelle has a rich professional background, having worked with renowned companies such as Luminar Technologies, Inc. and Luminar, LLC. His tenure in these organizations allowed him to hone his skills and collaborate on cutting-edge projects that push the boundaries of optical technology.

Collaborations

Throughout his career, LaChapelle has collaborated with notable colleagues including Jason M. Eichenholz and Scott R. Campbell. These partnerships have contributed to numerous advancements in the field, fostering an environment of innovation and creativity.

Conclusion

Joseph G. LaChapelle stands out as a key inventor in the realm of optical technologies, with a robust patent portfolio that highlights his ingenuity and technical expertise. His contributions have not only advanced the field but have also paved the way for future innovations in photonics and spectroscopy. As technology continues to evolve, the work of inventors like LaChapelle remains essential in shaping the future of optical sciences.

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