Pump block combines diodes for 350 W output

April 1, 2008
Designed and built with laser-diode chips from Bookham’s High Power Laser facility (Zurich, Switzerland), a pump block launched by Visotek (Livonia, MI) delivers 350 W at 976 nm from a single fiber with a 200 μm core diameter and 0.2 numerical aperture.

Designed and built with laser-diode chips from Bookham’s High Power Laser facility (Zurich, Switzerland), a pump block launched by Visotek (Livonia, MI) delivers 350 W at 976 nm from a single fiber with a 200 μm core diameter and 0.2 numerical aperture. The block combines the output from two modules, each with 44 single 7.5 W laser-diode chips that are polarization multiplexed. The proprietary design—developed using technology from the Fraunhofer USA Center for Laser Technology (Plymouth, MI)—results in a two-dimensional array with 88 total single-emitter diodes that eliminates all beam-shaping optics and uses only collimation lenses for both axes and a single focusing lens. Because the individual laser diodes are operated at 7.5 W, well below the more than 10 W that can be achieved for these diodes, the pump block is specified for a long operational lifetime. Such high-power output from a single fiber can be applied to materials processing applications, and offers a fast track to researchers developing new fiber and solid-state laser designs by providing a compact “off-the-shelf” pump source. Contact Andy Held at [email protected].

Sponsored Recommendations

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

How to Tune Servo Systems: The Basics

April 10, 2024
Learn how to tune a servo system using frequency-based tools to meet system specifications by watching our webinar!

Motion Scan and Data Collection Methods for Electro-Optic System Testing

April 10, 2024
Learn how different scanning patterns and approaches can be used in measuring an electro-optic sensor performance, by reading our whitepaper here!

How Precision Motion Systems are Shaping the Future of Semiconductor Manufacturing

March 28, 2024
This article highlights the pivotal role precision motion systems play in supporting the latest semiconductor manufacturing trends.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!