Semiconductor Laser QCW 200W 806nm 808nm Laser Diode Bars with 62 Units
Central Wavelength:806nm, Min 800nm, Max 811nm
Optical Ouput Power:200W
Operation Mode:QCW
Electro Optical Data
Fast Axis Divergency ( FWHM ):39
Slow Axis Divergency ( FWHM ):12
Spectral Bandwidth( FWHM ):4nm, Max 5nm
Slope Efficiency: 1.1,1.25 W/A
Conversion Efficiency: Min 50%, Max 55%
Threshold Current:19A, Min 17A,Max 21A
Operating Current:185A, Max 200A
Operating Voltage:1.9V, Max 2V
Polarization:TE
Dimensions
Numbers of Emitters:62
Filling Factor:80%
Emitter Width:120um
Emitter Pitch:150um
Cavity length:1500um
Thickness: 110um, Min 105um, Max 115um
Check the following for the datasheet meanings:
Central Wavelength: The central wavelength is defined as the weighted average of wavelengths against the spectral response weighted factor, while the spectral bandwidth is defined as the generalized w bandwidth when the area within the bandwidth is w% of the total area.
Optical Ouput Power: For CW Laser,this output power is not the peak power,it is average during some time.
Operation Mode is QCW. QCW advantage-high peak power: With the same average power of continuous and QCW lasers, QCW can achieve greater peak power, higher energy density, greater penetration and stronger penetration. In the welding of copper alloy and aluminum alloy sheet, QCW has more advantages.
Fast Axis Divergency ( FWHM ): Because of the small aperture size, the beam divergence in this direction is relatively high, with a beam divergence half-angle of e.g. 370 mrad, corresponding to an FWHM angular range of 25. Due to that fast divergence, this is called the fast axis direction.
Spectral Bandwidth( FWHM ): The Spectral Width is the output wavelength range of a laser. Lasers are not completely monochromatic i.e. they do not produce a single wavelength of light and so the laser output is generally a range of wavelengths.
Slope Efficiency: The slope efficiency is an important property of a laser. It is obtained by plotting the laser output power against the input pump power. Above the lasing threshold, the resulting curve is usually close to a straight line. The slope efficiency is the slope of this line.
Polarization:TE . The polarization of a laser beam impacts how it is focused. Research shows that focusing circularly-polarized beams resulted in symmetric spots at the diffraction limit while linearly-polarized beams focused into elongated spots stretched out in the direction of polarization.
