Company Filing History:
Years Active: 1992-2006
Title: Shulian Zhang: Innovator in Laser Technology
Introduction
Shulian Zhang is a prominent inventor based in Beijing, China. He has made significant contributions to the field of laser technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest inventions is the Frequency Splitting Laser Micrometer. This device is designed for measuring the displacement of an object. The laser micrometer utilizes a frequency splitting laser to direct a first frequency splitting laser beam to the object via a laser output mirror. The first laser beam is reflected, resulting in a second frequency splitting laser beam, which creates a feedback cavity. The frequency of the second laser beam is determined by the cavity length of the feedback cavity, allowing for precise measurement of the object's displacement. A detecting and signal processing unit receives both the first and second laser beams, measuring the displacement based on their interference effects.
Another notable patent is the Quartz Crystal Tuning He-Ne Double Frequency Laser. This apparatus incorporates a birefringent quartz plate within the laser cavity to generate two orthogonal polarized beams with varying frequencies. The frequency difference is dependent on the orientation of the crystalline axis of the quartz plate relative to the longitudinal axis of the laser beam. The frequency differences between the dual frequency beams can be adjusted from tens of MHz to over 1000 MHz, with tuning achieved through a mechanism that rotates the quartz plate. This dual-frequency laser is applicable in interferometry, laser Doppler velocimeters, and other advanced applications.
Career Highlights
Shulian Zhang is affiliated with Tsinghua University, where he continues to advance research in laser technology. His work has garnered attention for its innovative approach and practical applications in various fields.
Collaborations
He has collaborated with notable colleagues, including Sen Yang and Minxian Wu, contributing to a dynamic research environment that fosters innovation and discovery.
Conclusion
Shulian Zhang's contributions to laser technology through his patents and research at Tsinghua University highlight his role as a leading inventor in the field. His innovative devices are paving the way for advancements in measurement and laser applications.