NICHIA NUBM44 / NUBM47 laser diode with an aluminum collimator
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All diodes are being carefully tested every time before the shipment.
A new Endurance laser test comparing a NUBM44/47 vs non branded Chinese laser diode >>>
Tested by DTR.
Endurance laser lab test
All diodes are carefully tested before the shipment on our testing stand
Setting up voltage and current while checking the optical power.
All you need to know about NUBM44/47 Nichia laser diodes
A NUBM44 is a 445nm laser diode that emits 6-7 watts of optical power on the average in a CW mode. At the moment it is the highest power laser diode in a 9 mm TO-5 mount. A NUBM44 is specified with a typical center wavelength of 445 nm (dark blue). This is a multi-mode laser diode, it has a pretty narrow waveguide, which allows it to have nearly the lowest etendue (far-field divergence for a given beam diameter) of any high-power semiconductor laser. The narrow emitter width enables to better collimate and focus it than other high-power laser diodes. This is a big advantage of this unit.
This laser has a chemical formula of GaN. The laser operates at temperatures up to 60-65C without significant power or lifetime loss. But the colder the laser – the better. But if the temperature exceeds 70-80C the diode can dramatically lose its power before final degradation. The temperature shift to colder parameters will decrease the laser wavelength.
General datasheet about NUBM44
- Gallium Nitride (GaN) blue laser diode
- 6-7-watt blue laser,
- 445 nm wavelength;
- easy to focus and collimate with G2, G7, G8 lens;
- a compact TO-5 (9mm) mount;
- a wide range of operating temperatures (0C to 65C);
- a longer lifetime at higher operating temperatures due to GaN.
NUBM44 datasheet
Wavelength: 445+- 2 nm
Output Power: 6000-7000 mW
Transerve model: Multi-model
Operation Model: CW / Impulse
Warm up Time: <1 sec
Opeartion Tempearture: 0-65(°C)
Input Voltage: <5.5VDC
Input Current: >2A
Mount: TO-5 (9mm)
6 watt optical power can be reached @ 4.7A x 4.70 V = 22.09 W Input Power (by APS)
or @ 3.5 A x 4.53 V = 15.86 W Input Power (by DTR)
7 watt optical power can be reached @ 5.8A x 5.9V = 26.62W Input Power (by APS)
or @ 4.7 A x 4.77 V = 22.42 W Input Power (by DTR)
