SPOLD LD Irradiation Light Source


The SPOLD is a laser irradiation light source integrating a fiber output LD module and its driver and a Peltier cooler into a compact unit. Selectable irradiation unit enables laser irradiation with specific right condensed light spot diameter and beam profile.


  • Lightweight & compact
    Integrates the LD, drive circuit, and cooling mechanism
  • Air cooling
    Easy handling with peltier (thermoelectric) cooling
  • External control available
    Various kinds of alarm output available
  • Various types of irradiation units provided
    Focus/colimating optics, uniform irradiation etc.


  • Soldering
  • Plastic welding
  • Glass sealing
  • Adhesive thermal curing
  • Infrared illumination, etc.


  Model no. L13920-411 L13920-421 L13920-511 L13920-521 L13920-711
LD irradiationlight source
main unit
Oscillation mode CW
Output end of irradiation unit
(with maximum current setting)
27 W (min.) 67.5 W (min.) 54 W (min.) 180 W (min.)
Peak oscillation wavelength (25 ℃) 940 nm±20 nm 808 nm±20 nm 940 nm±20 nm 808 nm±20 nm 940 nm±20 nm
Cooling method Air cooling Water cooling (distilled water circulation) *1)
(W × H × D)
Approx. 360 mm × 150 mm × 360 mm (excluding projecting parts)
Weight Approx. 15 kg Approx. 12 kg
Laser transmitting optical fiber Model no. A11612 series
Fiber length *1) Approx. 5 m
Irradiation unit Model no. A12803 series
Light condensing diameter φ0.4 mm to φ6.4 mm *2)

*1) Excluding cooler unit needs to be prepared separately. Cooling water condition: 2 L/min to 3 L/min, cooling capacity: more than 300 W
*2) Depends on fiber core diameter and condensing magnification
* There are multiple choices for laser light source main unit, laser transmitting optical fibers and irradiation unit. Contact us about the detail of specifications if required.

Irradiation unit

Irradiation unit A12803 series


*Various types of different magnification and size are available.
Please contact us for details.

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