This inventor holds 4 USPTO granted patents. Top assignees: Coherent, Inc., Other. Active years: 1989-1992.
Company Filing History:
3 out of 544 
1 out of 834,411 Years Active: 1989-1992
Title: The Innovations of Bernard J Couillaud
Introduction
Bernard J Couillaud is a notable inventor based in Palo Alto, CA (US). He has made significant contributions to the field of laser technology, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of laser systems, particularly in generating ultrashort pulses.
Latest Patents
One of his latest patents is a birefringent filter designed for use in a tunable pulsed laser cavity. This innovative birefringent filter unit includes mechanisms for suppressing satellite pulses that result from surface reflections. In one embodiment, the filter is made from quartz crystal with a thickness of 3 mm, and its optical axis is oriented at an angle of approximately 50 degrees from the front surface. Another significant patent involves a mode-locked laser, which induces pulsed output by introducing a varying frequency-dependent loss in the laser cavity. This method allows multiple longitudinal modes to oscillate, resulting in the generation of ultra-short pulses.
Career Highlights
Throughout his career, Bernard has worked with various companies, including Coherent, Inc. His expertise in laser technology has positioned him as a key figure in the development of advanced laser systems.
Collaborations
He has collaborated with notable individuals in the field, including Daniel K Negus and Luis A Spinelli. Their combined efforts have contributed to the advancement of laser technology and its applications.
Conclusion
Bernard J Couillaud's innovative work in laser technology has led to significant advancements in the field. His patents reflect a deep understanding of the complexities involved in laser systems, and his contributions continue to influence the industry.