Theodor W Hansch

Title: Theodor W. Hansch: A Pioneer in Laser Technology

Introduction

Theodor W. Hansch is a renowned inventor based in Palo Alto, California, known for his significant contributions to laser technology. With a total of three patents to his name, Hansch has made remarkable advancements in the field of optical frequency stabilization and measurement.

Latest Patents

Hansch's latest patents include an external laser frequency stabilizer, which combines an acousto-optic frequency shifter and a fast electro-optic phase modulator. This innovative device features a compensating electronic delay line in a crossover network, providing a near-ideal transducer response while maintaining the voltage across the electro-optic crystal away from amplifier limits. Another notable patent is a method and apparatus for measuring optical frequency variations. This invention utilizes linearly-polarized incident light generated by a tunable laser, delivered to a passive resonant cavity. The reflected light acquires a frequency-dependent elliptical polarization, which can be detected by a simple polarization analyzer, providing a signal correlated with the frequency variation of the laser.

Career Highlights

Throughout his career, Hansch has worked with prestigious institutions, including Leland Stanford Junior University. His work has significantly impacted the field of laser technology, leading to advancements that have applications in various scientific and industrial domains.

Collaborations

Hansch has collaborated with notable individuals in the field, including John L. Hall and Bernard J. Couillaud. These collaborations have further enriched his research and contributions to laser technology.

Conclusion

Theodor W. Hansch's innovative work in laser technology has established him as a key figure in the field. His patents and collaborations reflect his dedication to advancing optical frequency stabilization and measurement techniques.