438 nm

Low noise diode laser at 438 nm


MDL-III-438 / MLL-III-438
Low noise CW diode laser

438 nm UV diode laser. It features low noise, power stability, ultra compact design, long lifetime, cost-effectiveness and easy operation. The laser is used in measurement, communication, spectrum analysis, etc.
Low noise 438 nm CW Diode laser
Wavelength:                        438 ± 3 nm
Operating mode:                CW
Output power:                    1, 100, ..., 500 mW
Power stability:                  < 1%, < 2%, < 3%, (< 0.5%)
                                             (rms, 4 hours)
transverse mode:              Multimode
Noise of amplitude*:        < 1% (rms, 10Hz~20MHz)
Beam diameter:                 ~ 2.5 x 5.2 mm (1/e²)
Beam divergence:              < 2.1 x 1.6 mrad
                                              (full angle)
Beam height:                       24.8 mm
Operating temperature:     10 ~ 35 °C
Warm-up time:                    < 5 min
Power supply:                     AC 85~264 V
Modulation:                         1 Hz - 30 kHz
                                              (30 kHz - 100 kHz)
Modulation method:          TTL or analog
Expected lifetime:              10,000 hours
Warranty:                             1 Year

* Model MLL-III-438 only

Fiber coupler for
438 nm laser module


MDL-438(FC)  |  1 ~ 450 mW

Almost all 438 nm laser modules can be coupled with MM or SM fibers with different core diameters. You will find all possible fiber couplings and parameters here.
Fiber coupler for blue CW laser 438 nm

Fiber coupled
laser system at 438 nm


FC-438 | 1 ~ 450 mW


The FC series (Fiber Coupling Laser System) includes laser diode, laser resonator, fiber coupling optics, laser power supply, LD current and crystal temperature control in ONE package. Thanks to its compact dimensions and convenient functions, such as power setting, temperature control, LCD/LED display, etc., it is very well suited for pumping, scientific research, industrial and medical applications.
Fiber coupled blue laser system 438 nm
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