Press information
Laser Bars and Stacks:
Responding to specific customer requirements
MUNICH / REGENSBURG – Osram Opto Semiconductors see their strengths in the field of laser bars and laser stacks particularly in their customizable design concept and modular product philosophy.
At the heart of the modules lies a laser bar mounted on a micro cooler. The building block design allows the modules to be stacked vertically, or to be freely arranged side-by-side in 2-D arrays. In addition, the modules can also be equipped with beam-forming micro-optics, e.g. for reduction of beam divergence or for coupling into fibers. The modular concept of the diode lasers means that the power of the beams is scalable: up to 2000 W for continuous wave operation (CW) and up to 5000 W for quasi-continuous waveoperation (QCW). The design concept displays a great deal of flexibility, allowing maximum adaptability of designs to cus-tomer-specific requirements.
The micro cooler provides an effective heat sink for the heat generated in the semiconductor laser chip, thereby ensuring stable operation of the laser. A particular feature of the laser chip is its lifetime of more than 40 000 hours, reducing maintenance requirements on the modules to a minimum. The small and compact modules display very high efficiency with figures over the 50% mark. The standard available wavelengths are 808 nm and 940 nm, 980 nm can also be supplied on request.
Laser bars and stacks provide an efficient source of energy for pumping solid-state lasers and represent an economic alternative to conventional flash lamps. In addition they are also suitable as tools for direct material processing in applications requiring only moderate beam quality but compact dimensions, a high degree of efficiency and ease of mainte-nance. These applications include plastic welding, heat-conductive welding of thin sheet metals, laser soldering and surface processing (hardening of torsion springs). In medical applications the high-performance diode lasers can be used for example in skin resurfacing and for hair removal.
| Product description | Type | Number of bars | Beam properties | Power Popt, (W) | Beam divergenceqy θy x θx (1/e²) |
| Single bars | |||||
| Passively cooled | SPL MNxx | 1 | No collimation | CW: 40, QCW: 100 |
35° x 5° |
| SPL MYxx | 1 | Fast axis collimation | CW: 38, QCW: 95 |
0,4° x 5° | |
| SPL MBxx | 1 | Both axis collimation | CW: 28 | 0,6° x 1,2° | |
| SPL MAxx *) | 1 | Fiber connector | CW: 30, QCW: 100 |
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| *) Fiber diameter: 0,4-0,6 mm; Numerical Aperture: 0,22 | |||||
| Laser stacks | |||||
| Passively cooled *) | SPL NNxx | 2...50 | No collimation | QCW: bis zu 5000 | 35° x 5° |
| SPL NYxx | 2...50 | Fast axis collimation | QCW: bis zu 4800 | 0,4° x 5° | |
| Actively cooled **) | SPL ENxx | 2...50 | No collimation | CW: bis zu 2000 QCW: bis zu 5000 |
35° x 5° |
| SPL EYxx | 2...50 | Fast axis collimation | CW: bis zu 1900 QCW: bis zu 4800 |
0,4° x 5° | |
| SPL EBxx | 1...4 | Both axis collimation | CW: bis zu 140 | 0,6° x 1,2° | |
| SPL EAxx | 1...4 | Fiber connector | CW: bis zu 100 | ||
| *) Bar-to-bar distance: 0,4...2 mm, duty cycle: 0,5...4 % **) Bar-to-bar distance: 1,4 mm; 1,7 mm; 2,3 mm; duty cycle: < 50 % |
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| 2-dimensional arrays | |||||
| Actively cooled *) | SPL TNxx | 2..50 x n | No collimation | Customized | |
| SPL TYxx | 2..50 x n | Fast axis collimation | Customized | ||
| *) Maximale Breite: 50 Barren | |||||
Laser Bars and Stacks:
Responding to specific customer requirements
Laser bars and laser stacks from Osram Opto Semiconductors: The building block design allows the modules to be stacked vertically, or to be freely arranged side-by-side in 2-D arrays. In addition, the modules can also be equipped with beam-forming micro-optics, e.g. for reduction of beam divergence or for coupling into fibers. The modular concept of the diode lasers means that the power of the beams is scalable: up to 2000 W for continuous wave operation (CW) and up to 5000 W for quasi-continuous waveoperation (QCW).
Press contact:
OSRAM
Christian Bölling
Tel: +49-89-6213-2597
Fax: +49-89-6213-3457
Email: c.boelling@osram.com