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Fiber-Coupled and Passively Cooled Diode Lasers

Photonics.com
Mar 2007
JENOPTIK Laser GmbH, Healthcare & IndustryRequest Info
 
JENA, Germany, March 15, 2007 -- High-power diode laser maker Jenoptik Laserdiode GmbH has introduced its new passively cooled fiber-coupled diode laser module (JOLD-100-CPXF-2P W/JOLD-140-CPXF-2P W) and a passively cooled diode laser on an industry-standard mount (JOLD-x-CPNN-1L/JOLD-200-QPNN-1L).Jenoptik.jpg
The JOLD-100-CPXF-2P W/JOLD-140-CPXF-2P W, a new passively cooled fiber-coupled diode laser module from Jenoptik Laserdiode GmbH.

The quality of the semiconductor material provided by subsidiary Jenoptik Diode Lab GmbH, coupled with Jenoptik Laserdiode's assembly technology, has led to a substantial output increase, the company said.

The fiber-coupled modules with 400-µm fiber (NA 0.22), which have been available with 75 W CW (continuous wave), are now offered with 100 W CW optical output power at wavelengths between 915 and 980 nm. The type with 600-µm fiber (NA 0.22) now can operate at 140 W CW output power (940 and 980 nm) or at 100 W CW output power (808 nm).

The JOLD-100-CPXF-2P W/JOLD-140-CPXF-2P W features integrated temperature sensors (PT100 and PT1000), a pilot laser and can be cooled with industrial water corresponding to the needs of industry. Optionally, the diode laser module is also available with a lower power level of 75 W CW including integrated TECs. The diode laser module is suitable for pumping solid-state lasers and fiber lasers, as well as for applications in the medical and material processing market.

Jenoptik Laserdiode's passively cooled diode laser on industry-standard mounts (25 mm x 25 mm), completes its successful line of highly efficient conduction-cooled products, the company said. The JOLD-x-CPNN-1L/JOLD-200-QPNN-1L emits 80 W CW at 808 nm and 100 W CW between 915 and 976 nm or 200 W in pulse mode (quasi-continuous wave) at 808 nm from one high-efficiency bar. This makes a range of optical output powers with easy to use conduction cooling accessible, which so far required cooling with deionized water.

The product has a typical operation current of 112 A (93 A at 808 nm) and a maximum operating voltage of 1.8 V (2.0 V at 808 nm) in continuous-wave mode (pulse mode: operation current 180 A, maximum operating voltage 2.2 V). As a feature, the diode laser is also available with fast axis collimation with 90 percent of initial optical output power within 0.5°. As with all the other conduction-cooled types of high-power diode lasers, this easy to operate, highly reliable and long living diode laser is used for several applications, e.g. pumping of solid-state lasers or material processing and medical applications, according to Jenoptik Laserdiode.

For more information, visit: www.jold.com or www.jenoptik-dlg.com; e-mail: jold@jenoptik.com

Jenoptik Laserdiode GmbH
Goeschwitzer Strasse 29
07745 Jena
Germany
Phone: +49 3641-65-4300
Fax: +49 3641-65-4392



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GLOSSARY
diode
A two-electrode device with an anode and a cathode that passes current in only one direction. It may be designed as an electron tube or as a semiconductor device.
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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