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Frequency Tripled

Advances in Diode Lasers and OPSLs

Advances in Diode Lasers and OPSLs

…can be intracavity doubled to give green output at
532 nm. Frequency tripling delivers UV output at
355 nm. In addition, these lasers also produce a
couple of weaker output wavelengths, which can be
frequency doubled to 473 nm and 561 nm.
DPSS lasers offer many advantages…

Materials Processing & Industrial Applications

Materials Processing & Industrial Applications

…reliability of the repair. Unfortunately the manual process involved in grinding is not repeatable and it requires high user skills. By using a frequency tripled DPSS laser emitting 355 nm like the AVIA, it is possible to precisely scarf the damaged area – allowing layers of composite to be ablated…

Europhotonics - Summer 2018

Europhotonics - Summer 2018

…sealed laser oscillators based
on Yb-fiber (Coherent Fidelity 2). The
1070-nm output of this laser is frequencydoubled to 535 nm, and frequency tripled
to 357 nm in a harmonic conversion
module (Figure 2).
The two wavelengths are directed down
separate paths toward the…

Industrial Laser Solutions - November/December 2015

Industrial Laser Solutions - November/December 2015

a)
b)
www.industrial-lasers.com NOVEMBER/DECEMBER 2015 Industrial Laser Solutions 29
Traditional marking methods
The dominant method for marking pharmaceuticals, medical
devices, and their associated packaging has long been ink
printing (inkjet or pad printing). Pills…

Lasers-for-Life-Sciences-Product-Guide FORMFIRST.pdf

Lasers-for-Life-Sciences-Product-Guide FORMFIRST.pdf

…System
System Specifications Radius 635-25 635-25E
Wavelength (nm) 635 +7/-2 635 +7/-2
Power (mW) 25 25
Max. Modulation Frequency (Hz) 100 100
RMS Noise (10 Hz to 10 MHz) <0.5% <0.5%
Power Stability (8 Hours) <2% <2%
Adjustable Beam Focus (Divergence)…

AVIA NX nanosecond laser

AVIA NX nanosecond laser

…of first generation DPSS lasers with UV or green output was often limited by optical damage to the harmonic crystals that are used to frequency double or triple the laser’s fundamental near-infrared output beam. Coherent has manufactured more ultraviolet industrial lasers than anyone else. And we…

AVIA LX 355-20 Laser

AVIA LX 355-20 Laser

…of first generation DPSS lasers with UV or green output was often limited by optical damage to the harmonic crystals that are used to frequency double or triple the laser’s fundamental near-infrared output beam. Coherent has manufactured more ultraviolet industrial lasers than anyone else. And we…

COHR WP OPSL No Green Noise final 5.15.18.pdf

COHR WP OPSL No Green Noise final 5.15.18.pdf

…CW green output at 532 nm.
Frequency Doubling Creates Green (and Ultraviolet) Noise
Both DPSS lasers and OPSLs generate their fundamental output in the near infrared, which is
then frequency doubled to produce visible output, or frequency tripled to produce ultraviolet
output…

The PCB Magazine, November 2015

The PCB Magazine, November 2015

…than infrared (CO and CO
2
) lasers.
One major limiting factor in the overall lifetime and service frequency for UV DPSS lasers is
the frequency tripling crystal. Specifically, this is
the non-linear optical element that converts the
native, near infrared output…

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

…converted to visible output via the use of an intracavity frequency doubling
crystal. And for applications needing ultraviolet output, some OPSLs are also equipped with a
pair of intracavity crystals to perform frequency tripling.
The Value of Wavelength Flexibility
Before the…

SureBlock XLF-2.pdf

SureBlock XLF-2.pdf

…with extremely high throughput
* · Repeatable, environmentally stable performance · No degradation in performance over time Applications: · Low frequency Raman spectroscopy · Structural studies of nanomaterials · Biomedical and solid state laser systems · Edge or wide-band notch filter replacement…

SureBlock XLF-1.pdf

SureBlock XLF-1.pdf

…with extremely high throughput
* · Repeatable, environmentally stable performance · No degradation in performance over time Applications: · Low frequency Raman spectroscopy · Structural studies of nanomaterials · Biomedical and solid state laser systems · Edge or wide-band notch filter replacement…