This inventor holds 4 USPTO granted patents. Top assignees: University of California, The United States of America as Represented by the United States, USA as Represented by Secretary of the Navy. Active years: 1989-2002.
Company Filing History:
2 out of 15,988 
1 out of 3,975 
1 out of 16,273 Years Active: 1989-2002
Title: The Innovations of Stephan P Velsko
Introduction
Stephan P Velsko is a notable inventor based in Livermore, CA (US). He has made significant contributions to the field of optical parametric oscillators, holding a total of 4 patents. His work has implications in various advanced technologies, including environmental monitoring and remote sensing.
Latest Patents
One of his latest patents is the "Compact, flexible, frequency agile parametric wavelength converter." This invention enhances the Frequency Agile Optical Parametric Oscillator (FA-OPO) by providing near on-axis pumping of a single QPMC with a tilted periodically poled grating. This design overcomes the need to find a specific crystal for collinear birefringence, allowing for a desired tuning range. The tilted grating design and the elongation of the transverse profile of the pump beam reduce the rate of change of overlap between the pumped volume in the crystal and the resonated and non-resonated wave mode volumes as the pump beam angle changes. Additionally, a folded mirror set relays the pivot point for beam steering, reducing the device's footprint by as much as a factor of two compared to traditional refractive telescope designs.
Another significant patent is the "Frequency agile optical parametric oscillator." This device converts a fixed wavelength pump laser beam to arbitrary wavelengths within a specified range with pulse-to-pulse agility, limited only by the pump laser's repetition rate. Applications for this invention include laser radar, LIDAR, active remote sensing of effluents and pollutants, environmental monitoring, antisensor lasers, and spectroscopy.
Career Highlights
Stephan P Velsko has worked with prestigious institutions, including the University of California and the United States Navy. His innovative work has positioned him as a key figure in the development of advanced optical technologies.
Collaborations
Throughout his career, Velsko has collaborated with notable individuals such as Steven T Yang and Francis W Wang. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Stephan P Velsko's contributions to the field of optical parametric oscillators demonstrate his innovative spirit and commitment to advancing technology. His patents reflect a deep understanding of complex optical systems and their applications in various industries.