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QCW 808nm Laser Diode Single Bar

Our 300W High Power Laser Bar, operating in Quasi-Continuous Wave (QCW) mode at an 808nm wavelength, is perfectly suited for material processing, medical applications, and photonic pumping in Direct Diode Laser (DDL) systems. It uniquely blends high efficiency with longevity, offering outstanding laser power and reliability for high-power applications. This laser bar boasts excellent beam quality, ensuring precise and powerful laser output ideal for cutting, engraving, and other sophisticated material processing techniques. Its efficient energy conversion and stable performance under continuous operation make it an indispensable component in high-end industrial and medical applications. With its advanced features, it stands out as a leading choice for professionals seeking high-quality laser solutions.

Key Features

Applications

High laser power

High efficiency

Long lifespan, high reliability

Excellent beam quality

Pumping for solid-state and Fiber Lasers

Industrial, scientific, and medical systems

Printing industry

Defense and security sectors


Technical Data

Operation*SymbolMinNomMaxUnit
Wavelength (ocw)λ805808811nm
Optical Output PowerPopt
300
W
Operation Mode
Pulsed
Power Modulation

100
%
Geometrical




Number of Emitters

62

Emitter WidthW90100110μm
Emitter pitchP
150
μm
Filling FactorF
75
%
Bar WidthB9600980010000μm
Cavity LengthL148015001520μm
ThicknessD115120125μm
Electro-Optical Data*




Fast Axis Divergence (FWHM)θ
3639°
Fast Axis Divergence*+θ
6568°
Slow Axis Divergence at 300 W (FWHM)θ||
89°
Slow Axis Divergence at 300 W**θ||
1011°
Pulse Wavelengthλ805808811nm
Spectral Bandwidth (FWHM)∆λ
35nm
Slope Efficiency***η1.21.3
W/A
Threshold CurrentI th
2225A
Operating CurrentI op
253275A
Operating VoltageVop
2.12.2V
Series ResistanceRs
3
mΩ
Degree of TE Polarizationα98

%
EO Conversion Efficiency***ηtot
56
%






NOTE:

* Mounted on a heat sink with Rth=0.7 K/W, coolant temperature 25°C, operating at nominal power, 200 µsec pulse length, and 4% duty cycle, measured with a photodiode

** Full width at 95 % power content

*** Item may change upon notice and acceptance by Lumispot , due to future improvements in technology or processing

Note: Nominal data represents typical values. Safety Advice: Laser bars are the active components in high-power Diode Lasers in accordance with IEC standard class 4 laser products. As delivered, laser bars cannot emit any laser beam. The laser beam can only be released if the bars are connected to a source of electrical energy. In this case, IEC-Standard 60825-1 describes the safety regulations to be taken to avoid personal injury


Laser bars are the active components in high-power diode lasers in accordance with IEC standard class 4 laser products. As delivered, laser bars cannot emit any laser beam. The laser beam can only be released if the bars are connected to a source of electrical energy. In this case, IEC-Standard 60825-1 describes the safety regulations to be taken to avoid personal injury

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