The CleanWeld solution for this again involved utilizing a dedicated intensity distribution in the
focused laser spot. The optimized beam shape allows the part to be both pre- and post-heated,
thus avoiding problems caused by rapid part cooling. It also eliminates spatter and the need…
…the associated beam delivery and beam shaping optics used in the process. In what follows, the authors examine why excimer systems (laser, optics and internal diagnostics) are using modular architecture to deliver higher and higher energies with improved pulse-topulse stability and beam uniformity.…
shape, size, focus and power measurement, easily fits in the build platform of most PBF systems.
Photo courtesy of the Applied Research Laboratory, Pennsylvania State University.
The high response speed of the PowerMax-Pro also enables it to directly observe pulse shape,
PL-501 Laser Operator's Manual
Conventional laser line patterns are often generated by cylindrical optics that produce
a Gaussian line profile with a bright center and fading ends. Coherent patented
beam-shaping optics distribute the light into an…
…lines are rarely perfectly straight. Most commonly, a bowed, or sometimes slightly "S"
shape can occur. A bowed shape is most often
caused when the incident laser beam enters
the beam shaping optics at a non-normal angle
Because line straightness is dependent…
Figure 2: The Coherent LB 155 system is powered by
a 150 W LEAP excimer laser that emits short wavelength
photons at 248 nm. A 3D profile of the generated line beam
shape (155 mm long axis (LA) length, 0.3 mm short axis (SA)
width) is shown in the foreground.
…effects), beam parameter and
wavelength deficiencies is completely transformed into
a viable, rugged,
functional laser with
high beam quality
shaping and full
…10 kW. We offer lasers with different performance points in terms of power levels
and beam profiles to address specific applications, including single mode lasers and advanced beam
shaping options, e.g. the ARM advanced high power fiber laser where the beam parameters can be
…above specified power, says Gaebler.
The free-space output of the laser system can be configured to deliver a variety of interchangeable beam shapes (with
widths from 1 to 12 mm and lengths from
6 to 36 mm) to enable rapid processing
of large areas with a high degree of control…
…150 milliwatts). Important for focused beam applications like flow cytometry, they all deliver a TEM
beam, with the option of symmetrical circular beam cross-section at several wavelengths.
Dubelaar explains, "The beam shaping in
our instruments is more demanding…
Eliminate Design &
Shaping and delivering laser beams in an efficient manner
requires expertise in photonics, and experience in translating
the design into cost-effective manufacture. Eliminate the risk
of over-specifying, over-building, and…
divergence are possible with optical beam-shaping after the VHG. These shaping techniques can reduce slow-axis
divergence at the cost of slightly larger beam in the slow-axis direction.
4.3 Spectral response of wavelength-locked 3-bar stack
Each bar in the stack was individually…