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Beam Quality Factor

Microsoft Word - Understand Different Laser Beam  Rev 1 Final.doc

Microsoft Word - Understand Different Laser Beam Rev 1 Final.doc

…of a laser beam. However, no matter how accurately and diligently a profile is measured, this information does not predict the intensity distribution elsewhere along the beam path. If the propagation behavior, or the beam quality factor M² of a laser beam should be needed, a beam propagation…

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

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

…FC/APC) Part # 1254255
Beam Combiner, 8 Input FC/UFC, Single Output
FC/APC, 405, 445, 488, 514, 532, 552, 590, 640 Part # 1253553
Beam Combiner, 8 Input FC/UFC, Single Output
FC/APC, 405, 458, 488, 514, 532, 552, 590, 640 Part # 1253554
Beam Combiner, 8 Input FC/UFC, Single…

2011-Diode-Laser-Modules-and-Pattern-Generators-Catalog.pdf

2011-Diode-Laser-Modules-and-Pattern-Generators-Catalog.pdf

…circular
low-divergence beams have almost no astigmatism
and a total wave-front error typically less than /10.
The M2 beam quality factor is typically 1.2 or better.
These diode laser modules produce a beam of such
high quality that they can replace more expensive…

High Power 7-GHz Bandwidth External-Cavity Diode Laser Array and Its Use in Optically Pumping Singlet Delta Oxygen.pdf

High Power 7-GHz Bandwidth External-Cavity Diode Laser Array and Its Use in Optically Pumping Singlet Delta Oxygen.pdf

…VBG-ECDLA's beam quality is evaluated. The beam propagation factor, M2, is
measured to be ~1100 on the slow axis and ~1 on the fast axis. The poor beam quality on the
slow-axis is normal for the broad-area diode laser arrays. Fortunately in this paper beam
quality is not a critical…

Mode Master White Paper July 2011 final.pdf

Mode Master White Paper July 2011 final.pdf

…lmc.sales@coherent.com I (800) 343-4912 I (408) 764-4042 1 White Paper Mode Quality (M2) Measurement Improves Laser Performance The laser mode quality factor (M2) provides a highly useful means of predicting laser beam propagation and focusing characteristics for both laser manufacturers and systems…

10 Tips White Paper 1 rev9

10 Tips White Paper 1 rev9

Beam quality factor M² and how your beam propagates.
Mode structure, divergence and the beam quality factor, M², can be measured directly with a beam
propagation analyzer. Knowing M² enables you to predict how the beam will propagate, how it will
look like elsewhere along the beam

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…The Beam Parameter Product (BPP).
In some cases, people prefer the Beam Parameter Product (BPP) in order to specify beam quality
(alternatively to the Beam Quality Factor M²). The Beam Parameter Product of a laser beam is defined as
the product of beam radius (measured at the beam

Mode-Master-Whitepaper FORMFIRST.pdf

Mode-Master-Whitepaper FORMFIRST.pdf

…lmc.sales@coherent.com I (800) 343-4912 I (408) 764-4042 1 White Paper Mode Quality (M2) Measurement Improves Laser Performance The laser mode quality factor (M2) provides a highly useful means of predicting laser beam propagation and focusing characteristics for both laser manufacturers and systems…

COHR WhitePaper template 2 08 2019

COHR WhitePaper template 2 08 2019

…be low for both power and beam quality (BPP).
In the nominal situation with the beam collimated between
the two optics, the image of the feeding fiber is magnified
with a factor M onto the process fiber.
M=ffoc
/fcoll
The magnification factor M, not only magnifies the…

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

COHR WhitePaper High Repetition Rate USP Lasers Improve OLED Cutting Results.pdf

…nears a factor of 2.5 under
these operating conditions.
Figure 9 demonstrates that this improvement in cut quality also corresponded with an increase
in effective cutting rate. For the second sample (PET | OCA adhesive | PI | PET), cutting speed
can be improved by a factor of 2…

COHR Astrella DS 0117 3.pdf

COHR Astrella DS 0117 3.pdf

…Pre-pulse >1000:1 >1000:1
Post-pulse >100:1 >100:1
Power Stability5,6 (rms) <0.5 <0.5
Beam Pointing Stability5,6 (µrad) (rms) <10 <10
Beam Diameter (mm) (1/e2) (nominal) 11 11
Spatial Mode TEM00, M2 <1.25 TEM00, M2 <1.25
Polarization…

2016-Ultrafast-Laser-Systems-Catalog.pdf

2016-Ultrafast-Laser-Systems-Catalog.pdf


Contrast Ratio4
Pre-pulse >1000:1
Post-pulse >100:1
Power Stability5,6 (rms) <0.5
Beam Pointing Stability5,6 (mrad)(rms) <10
Beam Diameter (mm)(1/e2)(nominal) 11
Spatial Mode TEM00, M2 <1.25
Polarization linear, horizontal
Pump Laser…