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. L14140-11 L14140-21 L14140-31
LD irradiation light source
main unit
Oscillation mode CW
Output end of irradiation unit
(with maximum current setting)
9 W (min.) 9 W (min.) 15 W (min.)
Peak oscillation wavelength (25 ℃) 915 nm±20 nm
Cooling method Air cooling
(W × H × D)
Approx. 280 mm × 100 mm × 300 mm (excluding projecting parts)
Weight Approx. 5 kg
Laser transmitting optical fiber Model no. A11612 series
Fiber length *1) Approx. 2 m
Irradiation unit Model no. A12803 series
Light condensing diameter φ0.1 mm to φ0.8 mm *1) φ0.2 mm to φ3.2 mm *1) φ0.4 mm to φ3.2 mm *1)

*1) 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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