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*	Symbol	Min	Nom	Max	Unit
Wavelength (ocw)	λ	805	808	811	nm
Optical Output Power	P_opt		300		W
Operation Mode		Pulsed
Power Modulation			100		%
Geometrical
Number of Emitters			62
Emitter Width	W	90	100	110	μm
Emitter pitch	P		150		μm
Filling Factor	F		75		%
Bar Width	B	9600	9800	10000	μm
Cavity Length	L	1480	1500	1520	μm
Thickness	D	115	120	125	μm
Electro-Optical Data*
Fast Axis Divergence (FWHM)	θ_┴		36	39	°
Fast Axis Divergence*+	θ_┴		65	68	°
Slow Axis Divergence at 300 W (FWHM)	θ_\|\|		8	9	°
Slow Axis Divergence at 300 W**	θ_\|\|		10	11	°
Pulse Wavelength	λ	805	808	811	nm
Spectral Bandwidth (FWHM)	∆λ		3	5	nm
Slope Efficiency***	η	1.2	1.3		W/A
Threshold Current	I_th		22	25	A
Operating Current	I_op		253	275	A
Operating Voltage	V_op		2.1	2.2	V
Series Resistance	Rs		3		mΩ
Degree of TE Polarization	α	98			%
EO Conversion Efficiency***	η_tot		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