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Beam Width

COHR HELIOS DS 0217 3.pdf

COHR HELIOS DS 0217 3.pdf

…to 70 Single-shot to 125
Nominal Pulse Repetition Frequency (kHz) 50 50 125
Pulse Width (ns) <0.79 <0.69 <0.95
Spatial Mode TEM00
M2 (Beam Quality) <1.25
Beam Diameter, 1/e2 (mm) 3.5 2.5 2.5
Polarization > 50:1, vertical
Jitter (ns)
between…

Compact Single Mode Tunable Laser Using a Digital Micromirror Device.pdf

Compact Single Mode Tunable Laser Using a Digital Micromirror Device.pdf

…monitoring the power
of the secondary output beam with a photodetector while the laser was switched between two
wavelengths. Two photodetectors were used to detect the secondary output beams, one for
each wavelength. The internal pulse width modulation (PWM) of the DLP was used in…

SPIE DSS 2013 Final submitted 4-25-2013x

SPIE DSS 2013 Final submitted 4-25-2013x


heaters) will also shift the spectrum and increase the line width.
Figure 25 shows a spectral plot of the wavelength-locked stack before temperature tuning of the VHG's to reduce the
overall spectral line width. The prominent side-peak on the right is caused by higher center…

Laser Focus World - January 2015

Laser Focus World - January 2015

…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 over…

EnergyMax-USB/RS User Manual

EnergyMax-USB/RS User Manual

…sensor has a slightly higher pulse width
linearity specification of +/- 1.5%.)
Spectral
Response
All pyroelectric EnergyMax sensors incorporate a diffuse coating to
minimize specular reflections, which eliminates spurious beams that
can re-enter the laser cavity.…

Bio Photonics - October 2014

Bio Photonics - October 2014

…images. The broader
spectral bandwidth of a 70-fs pulse means
that group velocity dispersion in the beam
delivery optics will stretch the initial
laser pulse width. For this reason, the new
laser incorporates a software-controlled
precompensator to enable the user or…

COHR Fidelity-2 DS 0618 4.pdf

COHR Fidelity-2 DS 0618 4.pdf

…Stability3 (%) ±0.5
Repetition Rate (MHz) (factory set) 70 ±2
M2 (average of X&Y) <1.2
Beam Diameter4 (mm) 1.2 ±0.2
Beam Divergence (mrad) <1.6
Beam Circularity5 0.9 to 1.1
Astigmatism (%) <10
Polarization Horizontal
Group Delay Dispersion (GDD)…

ILS Annealing.PDF

…laser is significantly reshaped into a long, thin line beam
typically having a length equal to the width, or half the width, of
the panel. This enables the entire panel to be processed in one
or two passes under the laser beam. This is critical to achieving the process utilization and…

Photonics Spectra - September 2016

Photonics Spectra - September 2016

…excimer output beam is reshaped into a long narrow line profile. The
length of the line ideally matches either the
half or full width of the panel; hundreds of
smartphone displays are eventually diced
from each panel. The panel is translated
under the line beam inside an…

Excimer laser technology trends

Excimer laser technology trends

…via feedback regulation of the laser
discharge voltage, however, induces slight effects on laser
pulse length and on the width of the beam profile. As the
latter is usually aperture imaged onto the target, changing the
discharge voltage indirectly affects the on-target…

LegendEliteHEplus DS 0715revA 6.pdf

LegendEliteHEplus DS 0715revA 6.pdf


Pulse Width Configuration
Pulse Width (fs)(FHWM) USX USP F P
<253,4 <355 <1105 500 to 10005,6
Repetition Rate7 (kHz) 1, 5 or 10
Contrast Ratio8
Pre-pulse >1000:1
Post-pulse >100:1
Power Stability9,10 (%)(rms) <0.5
Beam Pointing…

Legend-Elite-HE-Data-Sheet.pdf

Legend-Elite-HE-Data-Sheet.pdf


Pulse Width Configuration
Pulse Width (fs)(FHWM) USX USP F P
<253,4 <355 <1105 500 to 10005,6
Repetition Rate7 (kHz) 1, 5 or 10
Contrast Ratio8
Pre-pulse >1000:1
Post-pulse >100:1
Power Stability9,10 (%)(rms) <0.5
Beam Pointing…