Mark Johnson

Title: Mark Johnson: Innovator in Optical Measurement Technologies

Introduction

Mark Johnson is a distinguished inventor based in Leonberg-Warmbronn, Germany. He has made significant contributions to the field of optical measurement technologies, holding three patents that showcase his innovative approach to solving complex measurement challenges.

Latest Patents

One of Johnson's latest patents is titled "Method and arrangement for the measurement of rotations by the Sagnac." This invention allows for the measurement of very small rotation rates by utilizing the Sagnac effect in a light path that encircles an area. The method involves coupling two coherent light beams into the ends of the light path, where a section is subject to perturbations affecting the polarizations of the beams. After emerging from the fiber, the beams are superimposed to create interference, enabling the evaluation of the rotation rate through analysis of this interference. To enhance sensitivity to perturbations, the beams are coupled with defined states of polarization, and an automatic control system maintains a stable state of polarization for accurate measurements.

Another notable patent is "Apparatus for measuring the influence of physical parameters on the length of a path." This device employs an elastically stretchable optical fiber guided with minimal pretensioning along a path that experiences length changes. The optical fiber is mounted on supports that undergo positional changes with the path's length alterations. A transit-time measuring device is integrated with the optical fiber, generating signal pulses that circulate in a closed signal path. By measuring the total travel time and the number of signal pulses, the device can determine the length and changes in length of the measured path.

Career Highlights

Mark Johnson is affiliated with the Max Planck Society for the Advancement of Science, where he continues to develop innovative solutions in optical measurement. His work has significantly advanced the understanding and application of optical technologies in various fields.

Collaborations

Johnson collaborates with Reinhard Ulrich, contributing to the advancement of their shared research interests in optical measurement technologies.

Conclusion

Mark Johnson's innovative patents and contributions to the field of optical measurement technologies highlight his role as a leading inventor. His work continues to influence advancements in measurement techniques, showcasing the importance of innovation in scientific research.