Laser Bars provide high power for industrial lasers.
Press Release Summary:
Able to help simplify laser system design, SPL BKxx-40WFT series has bar width of 10 mm and cavity length of 4 mm and produces IR radiation in wavelengths from 915-1,020 nm. Efficiency of up to 65% at 200 W optical output power promotes extended operating lifetime of greater than 30,000 hr typ. These direct diode lasers are efficient laser light sources for fiber-coupled systems and are efficient alternative to carbon dioxide lasers.
Original Press Release:
New OSRAM Laser Bars Provide Highest Power Yet for Industrial Lasers
New laser bar series offers higher efficiency with 200 Watts continuous optical output power
Osram Opto Semiconductors' new laser bars offer extremely high efficiency of up to 65 percent at 200 Watts optical output power and can simplify the design of laser systems and reduce their cost. Laserline, one of the leading manufacturers of diode lasers for industrial material processing, is taking advantage of these benefits in its new fiber-coupled diode lasers used in applications from welding of metals and plastics to surface treatment and cutting.
The new laser bar series, designated SPL BKxx-40WFT, produces infrared radiation in various wavelengths ranging from 915 to 1,020 nanometers (nm). As a result of their excellent efficiency values - up to 65 percent - the bars achieve a long operating lifetime, amply meeting the requirements for industrial laser systems.
Besides the optical pumping of fiber lasers, direct processing of metals - welding , brazing, cutting, hardening, cladding and coating - for use in automotive manufacturing is one of the main applications of infrared lasers with more than 1 kW of power. Direct diode lasers are the most efficient laser light sources for such fiber-coupled systems and are a more efficient alternative to the carbon dioxide lasers that have been traditionally used.
Osram's new laser bars, in fact, are the core of the latest and most powerful fiber-coupled diode laser series from Laserline. The complete system is water-cooled and supplies between 2 and 15 kilowatts (kW) of power via a fiber with a core diameter of 1 to 2 mm. Its overall efficiency reaches maximum levels of more than 40 percent, due to the high efficiency of the laser bars.
"Our developments in the field of laser bars are pushing the utilization of direct diode lasers into ever higher power ranges," said Michael Klein, Marketing Manager for laser bars with Osram Opto Semiconductors. "This enables our customers to open up new markets, and benefits from the improved technology include lower investment cost because fewer laser bars are required to generate the needed power. The cost for electricity and maintenance will also decrease due to their high efficiency and long operating lifetime."
The cutting-edge laser bars have been developed on the basis of results generated by Osram Opto Semiconductors in the HEMILAS project, which was supported by the German Federal Ministry of Education and Research with the goal of developing a new generation of semiconductor lasers with higher output powers, narrower emission areas and extremely high optical power densities. The main results to date are the efficiency-optimized structure of epitaxy layers and improved mirror technologies with a high damage threshold.
Technical Data:
Dimensions: Bar width 10 mm, cavity length 4 mm
Efficiency: 65 % at operating point
Optical output power: 200 W CW
Wavelength: 915 - 1020 nm
Average operating lifetime: >30.000 hours
http://www.osram-os.com/pr-laserline
ABOUT OSRAM OPTO SEMICONDUCTORS
OSRAM AG, a wholly owned subsidiary of Siemens, is one of the two leading lighting manufacturers in the world. Its subsidiary, OSRAM Opto Semiconductors GmbH in Regensburg (Germany), offers its customers solutions based on semiconductor technology for lighting, sensor and visualization applications. Osram Opto Semiconductors has production sites in Regensburg (Germany) and Penang (Malaysia). Its headquarters for North America is in Sunnyvale (USA). Its headquarters for the Asia region is in Hong Kong. Osram Opto Semiconductors also has sales offices throughout the world. For more information, go to www.osram-os.com.
