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Cavitar | CAVILUX HF Illumination Laser

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CAVILUX HF illumination laser provides very high pulse frequencies with very high power output. It is an ideal light source for most thermal light emitting processes such as welding, coating, combustion and expositions. With its short pulse length it is also very good for flow applications and balli ...Read more
  • Description
  • Specifications

CAVILUX HF illumination laser provides very high pulse frequencies with very high power output. It is an ideal light source for most thermal light emitting processes such as welding, coating, combustion and expositions. With its short pulse length it is also very good for flow applications and ballistics.

CAVILUX HF can generate pulses of a few hundred kilo hertz is available at 810 nm wave length and includes all the features of CAVILUX Smart illumination laser as well as extensive features for high-frequency operation. Tech Imaging Services can also provide complete high-speed imaging systems (including a CAVILUX laser light source, camera, different optical accessories and triggering) that are optimized according to customer´s specific needs.

The main applications are usually around 10-20 kHz. The homogen and speckle free light of the system provides excellent image quality. CAVILUX HF is very compact and robust and can be used in the lab as well as in rough industrial conditions. The fiber guides enable the use of the light in tight spaces.

Target applications include:

  • Welding
  • Coating
  • Flows of particles, droplets, sprays
  • Explosions
  • Ballistics
  • Shockwaves

Specifications

Frame Rate Performance examples:

  • 500 W @ 810 nm
  • Shortest pulse 100 ns
  • Longest pulse 10 us
  • DC 2% (for max 10 s)
  • -E.g. 20 000 fps @ 1 us
  • DC 0,03% (continuous)
  • -E.g. 300 Hz @ 1 us
  • Practical repetition rate up to a few hundred
  • Frequency and pulses freely adjustable
  • Generation of single pulses
  • Generation of pulse patterns (max 5 pulses)
  • Monochromatic
  • No speckle
  • Fiber guided
  • Ability to control up to 4 cameras and lasers
  • Stand alone operation
500 W @ 810 nm

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Understanding the Main Features of Cavitar’s CAVILUX Smart and CAVILUX HF

Feature CAVILUX Smart CAVILUX HF
Wavelength 640 nm or 810 nm 810 nm
Fiber core diameter 5 mm or 3 mm 1.5 mm
Minimum pulse duration with peak power reaching the specific pulse power 30 ns 100 ns
Minimum pulse duration with lower power than peak power 10 ns 50 ns
Max. duty cycle (High speed mode) 0.1 % 2 %
Max. repetition rate (30 ns pulses) 33 kHz -
Max. repetition rate (100 ns pulses) 10 kHz 200 kHz
Max. repetition rate (1 µs pulses) 1 kHz 20 kHz

* with peak power reaching the specified pulse power

Wavelength

If visible light is necessary, then CAVILUX Smart 640 nm is the standard product (not taking into account possible customized solutions). The CAVILUX HF is equipped with a visible laser pointer beam (green light). Color cameras typically have an IR cut filter in front of the sensor which blocks 810 nm. Some cameras allow the removal of that filter and in this case CAVILUX 640 nm and 810 nm can be used.

Fiber core diameter

CAVILUX Smart has a fiber core diameter of either 5 mm (400 W @ 640 nm) or 3 mm (500 W @ 810 nm, 200 W @ 640 nm), whereas CAVILUX HF has a fiber core diameter of 1.5 mm. This means that CAVILUX HF has 4-11 times higher brightness than CAVILUX Smart. Higher brightness enables the illumination of a smaller area from a certain distance or, alternatively, the illumination of a certain area from a greater distance. CAVILUX Smart 200 W provides a higher brightness than CAVILUX Smart 400 W if the illuminated area is smaller than 3 mm.

Minimum pulse duration

The minimum pulse duration for CAVILUX Smart enabling full output power is ~30 ns. CAVILUX Smart can create pulse durations up to 10 ns but then the output power is lower. The minimum pulse duration for CAVILUX HF at full power is ~100 ns and 50 ns at lower output power. A very short pulse may be needed for removing motion blur when a small and fast-moving object is studied at high magnification. CAVILUX Smart has shorter rise and fall times than CAVILUX HF. Therefore, Smart can generate extremely short pulses (below 100 ns) more accurately than CAVILUX HF.