Jason Edward Langseth

Title: Innovations by Jason Edward Langseth

Introduction

Jason Edward Langseth is a notable inventor based in Malden, MA (US). He holds a total of 7 patents that showcase his contributions to the field of coherent beam combining and laser technology. His work has significantly advanced the understanding and application of optical systems.

Latest Patents

One of Langseth's latest patents focuses on SBS suppression and electronic path length matching in coherent beam combining. In this innovation, beams can be phase-modulated with a pseudo-random bit sequence (PRBS) to prevent stimulated Brillouin scattering (SBS) downstream. To coherently combine the phase-modulated beams, the PRBS waveforms must be true-time-delayed to within a small fraction of the bit duration. Traditionally, achieving this true time delay has been challenging, often requiring precise cutting of optical fibers or the use of optical trombones, both of which have limitations. Langseth's method involves generating beams from a kilohertz linewidth seed split among multiple arms, each phase-modulated with a unique PRBS pattern. This approach stabilizes the relative phase of the PRBS patterns and compensates for physical path length mismatches, enhancing the efficiency of the beam combining process.

Another significant patent by Langseth addresses the challenge of incoherently combining lasers while maintaining high brightness. Conventional fiber bundling techniques often struggle with brightness due to tight-packed arrangements of fibers from different lasers. Langseth's innovation involves tapering the tips of bundled fibers to match a single, multi-mode output fiber, thereby increasing brightness. Additionally, by reducing the outer diameters of signal fiber claddings, more signal fiber cores can be coupled to the core of a multi-mode output fiber, further enhancing brightness.

Career Highlights

Langseth has had a distinguished career, working with prestigious organizations such as the Massachusetts Institute of Technology and Textron Systems Corporation. His experience in these institutions has allowed him to collaborate with leading experts in the field and contribute to groundbreaking research and development.

Collaborations

Throughout his career, Langseth has worked alongside talented individuals, including Christopher Hwang and Alexander E Mandl. These collaborations have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Jason Edward Langseth's contributions to the field of optical technology are significant