Operating a nanosecond-pulsed laser is substantially different from operating a CW laser. To build and produce each pulse, the light has time for very few
round trips in the laser cavity, and the simple two-mirror cavity based on a partly transmissive mirror described so far cannot produce…
…laser Pyrometer Dichroic mirror Focusing optics Clad layer Sealed process chamber Process monitoring camera Powder nozzle Workpiece Mini-melt oven Material mix computer COVER STORY 16 Industrial Laser Solutions MARCH/APRIL 2016 www.industrial-lasers.com t e c h n o l o g y r e p o r t Fiber laser…
…Ion Laser Leader since 1969. Noble gas ion lasers are among most mature of all laser technologies. Coherent has been in the high-power ion laser business from the very dawn of the laser industry. With technological maturity comes performance and reliability that was unheard of when ion lasers first…
…these electrodes. The electrodes are water cooled to efficiently cool
the laser gas, maximizing laser efficiency.
Within the resonator cavity, the laser light is reflected
by parabolic mirrors, before a portion of this radiation
is allowed to exit the resonator area through…
…mirror mounts Shock test misalignments New mirror mounts b) 450 to 499 350 to 399 400 to 449 250 to 299 300 to 349 150 to 199 200 to 249 50 to 99 100 to 149 0 to 49 x misalignment y misalignment 30 25 20 40 35 15 10 5 0 45 Laser Focus World www.laserfocusworld.com September 2014 SOLID-STATE LASERS…
In this test, the laser was used to mark
2D barcodes on the curved surface of a pill
bottle (FIGURE 1). The 355 nm laser, working with a focused spot size of 30µm, was
scanned over the part surface using a galvanometer mirror system. In this configuration,…
…laser weld. However,
standard tooling could not ensure an optimum fit between parts for the entire operation,
and a consistent, high quality seam could therefore, not be guaranteed.
Coherent | Rofin and Rodomach therefore undertook to design an approach which would
clamp the part…
…beat notes between corresponding lines from each comb, and
there is no need for any moving parts.
To achieve similar recording speed with
the Michelson approach would need a
mirror moving at the earth escape velocity!
O&P: Can you take a little time to talk
…throughput and a yield above
99.9%. Laser cutting has emerged as the only method for flexible OLED trimming that can meet
all these requirements.
To implement laser cutting, the laser beam is directed through a pair of galvanometer scan
mirrors and then a scan lens which focuses…
…that the concept can also be applied to arrays and stacks of high power laser diodes.
776 778 780 782 784 786 788
…amounts of pump power. Specifically, a coherent single-mode laser beam
at 980 nm is split by the first beamsplitter so that part of its intensity is reflected off the OPSL
chip and part is reflected from a super-flat reference mirror. A second beamsplitter recombines
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Figure 1. Basic optical elements of a typical scanning system for laser marking or ablation. For simplicity, only one
of the two scan mirrors is shown.
From the standpoint of the optics, there is one major limitation to this approach. This…