Jari Näppi

Title: Jari Näppi: Innovator in Fiber Laser Technology

Introduction

Jari Näppi is a notable inventor based in Tampere, Finland, recognized for his contributions to fiber laser technology. With a total of two patents to his name, he has made significant advancements in the field of optical engineering.

Latest Patents

One of Jari Näppi's latest patents is the Fiber Laser Pump Reflector. This innovative pump reflector is designed to efficiently recycle unabsorbed pump radiation in a diode-pumped fiber laser. It features a core for guiding a laser beam, a pump cladding, and a tapered capillary tube. The pump radiation is adiabatically guided within the tapered capillary tube, which includes a mirror that reflects the pump radiation. This pump reflector can be packaged as a fiber component for use in co-propagating or counter-propagating fiber laser amplifiers and resonators.

Another significant patent is the Fiber Optic Mode Scrambler and a Method of Manufacturing Thereof. This mode scrambler consists of a multi-mode optical fiber with a core and cladding, along with a non-adiabatic cross-sectional shape change zone. The fiber also includes a bending region that extends over a length of the optical fiber, maintaining a non-zero curvature at this region. The device allows for accurate adjustments to match different desired optical characteristics, and a well-controlled manufacturing method for the mode scrambler is also described.

Career Highlights

Throughout his career, Jari Näppi has worked with prominent companies in the laser technology sector, including Rofin-Sinar Laser GmbH and Corelase Oy. His experience in these organizations has contributed to his expertise and innovative capabilities in the field.

Collaborations

Jari has collaborated with notable individuals such as Arto K Salokatve and Arto Salokatve, further enhancing his work and contributions to the industry.

Conclusion

Jari Näppi's innovative work in fiber laser technology and his patents reflect his significant impact on the field. His contributions continue to influence advancements in optical engineering and laser applications.