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Efficient High Power Diode Lasers

Currently we are offering three diode lasers in the 445nm wavelength and one in the 405nm wavelength.  All of these diode lasers pack a pretty big punch in a small package.  They engrave and cut many materials and are detailed in our applications page.

Each one of these diodes are pressed fit mounted in an aluminum housing and has an aluminum mountable heat-sink.  The laser is set in the heat sink with thermally conductive paste for better heat distribution.  The front of the component contains a adjustable glass focusing lens for the laser output which is our High Efficiency Lens in a brass holder.

The four 445nm versions we offer are:

The 405nm laser we offer is:

Typical Output Power at MFG Recommended Settings

The current setting to keep your laser lasting the full lifetime is listed in the following table along with the expected output power of the laser.

LaserMFG Current Setting (amps)Typical Output Power (W)
1 W 405nm0.61W
2W 44nm11.2 - 1.4
2.8W 445nm1.52.2 - 2.4
4.2W 445nm2.54.2
7W 445nm47

Maximum Output Power

This is the maximum expected output power of the laser at full current levels.  Running at this level will reduce the lifetime of the laser and should only be done with this understanding.   In some cases, this number will also be the same as the recommended.  In those cases, there will be no loss of lifetime on the laser (example is the 4.2W laser and the 1W laser).

LaserMax Current Setting (amps)Max Output Power (W)
1 W 405nm.61W
2W 44nm1.72W - 2.5W
2.8W 445nm2.52.8W - 3.4W
4.2W 445nm2.54.2
7W 445nm47

Spot Size

The lasers will all have a slightly different spot size at focus.  The smallest is the 405nm laser.  It can make microscopic engravings and super fine details.  The largest is the 4.2W and 7W laser, which can still engrave well, but will not have the detail that the other lasers will without the High Efficiency Lens option.  With the High Resolution lens on the 4.2W and 7W, the spot sizes will be similar to the smaller power lasers.

We recommend using the high resolution lens on the 4.2W and 7W lasers for fine detail.

Focused Spot Size (High Efficiency Lens)

Laser
Minimum Focused Spot Size (inch)
1 W 405nm
0.004"
2W 44nm
0.0065"
2.8W 445nm
0.007"
4.2W 445nm
0.011"
7W0.011"

Focused Spot Size (High Resolution Lens)

Laser
Minimum Focused Spot Size (inch)
1 W 405nm
0.00375"
2W 44nm
0.005"
2.8W 445nm
0.006"
4.2W 445nm
0.007"
7W0.007"

Mounting

Standard Mounting

All laser diode components are press fit into copper 12mm housings and come mounted in a custom aluminum heat sink fitted with thermal paste for heat dissipation.  The design allows for easy mounting on CNC machine spindle heads or in front of 3D print heads or on their own in a machine.  The diagrams of the heat sink and mounting are found below:

Laser Diode Component Dimensions

Laser Diode Component Dimensions Mounting

Magnetic Laser Shroud

We recommend using the upgraded magnet laser shroud for ease of mounting and also safety.  The laser is contained in a shielded housing which restricts laser light above an angle of 10 degrees at 2′.  This means that if you are looking down at the laser then you will not see any of the beam artifacts that potentially can cause harm.  This is especially good if you have a shop where people can be walking in without protective eyewear.

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