1.2W 405nm Free Space Laser Diode Module

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Product Description

Opt Lasers 1.2 mW 405 nm Free Space Laser Diode Module features excellent divergence and beam size specifications. The laser diode driver provided with this module ensures precise control of laser diode current while maintaining high-speed modulation. Precise control of the temperature of the laser diode housing greatly improves power stability and ensures the long lifetime of the laser diode. This combination of beam specifications and current, temperature control makes this module a perfect choice for both scientific and industrial applications.

The module feautures possibility to mount thorlabs cage system adaptor. A cooling platform and PSU for this module are available for this module. If you want to add them to your other or have any other questions feel free to contact us.

Read more about free space laser diode modules.

Product Features

  • Small beam size
  • Low divergence
  • High Optical Stability
  • Active cooling
  • Long Lifetime
  • High speed modulation


  • Illumination
  • Fluorescence
  • Automotive
  • Spectroscopy
  • UV curing
  • Laser pumping


Typ. Center Wavelength [nm, ±3] 402
Output power [mW] 1200
Typ. Beam Size [mm, @ 1/e2]1 3 x 3
Typ. Full Angle Beam Divergence [mRad, @ 1/e]1 0.2 x 0.6
Typ. Spectral line width FWHM, nm [nm, @ FWHM] 1
Polarization State TE
Min. Polarization Extinction ratio 1:100
Peak-to-peak Power Stability Over 8h, %2 1
RMS Power Stability Over 8h, %2 0.2
Lifetime [h] 10 000
Modulation Input [V, Analog] 0-5
-3 dB Bandwidth Modulation [kHz] 600
Softstart Time [ms] 2000
Rise Time [ns]3 250
Fall Time [ns]3 150
Signal To Rise Start Delay [ns]3 400
Laser Diode ESD Protection YES
Cooling Method Active - TEC
Operating Temperature [°C] 10 - 35
Overheat protection Yes
Dissipated Power [W, bottom surface] <70
Max power consumption [V x A] 12 x 9.5
Module dimensions (L x W x H) [mm] 129 x 59 x 41

1 Vertical x Horizontal.

2 Test performed in 22°C ±2 ambient temperature using an optical power meter with an input bandwidth of 100 Hz. Power was measured every 6 seconds

3 Measured performed with 100kHz frequency.


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