Ask RP Photonics for advice on how to measure the beam quality of your laser source, or how to optimize it, e.g. via advanced resonator design.Author: the photonics expert Dr. Rüdiger PaschottaDefinition: beams with a minimum possible beam divergence for a given waist radius...
Rüdiger Paschotta, RP Photonics AG, RP Photonics AG Abstract: It is instructive to consider the beam quality of a second-harmonic beam in different cases. It turns out that the full beam quality is normally preserved for a Gaussian pump beam, while the beam quality deteriorates significantly ...
be focused for a given beam divergence angle, which is often limited by the numerical aperture of the focusing lens. Together with the optical power, the beam quality factor determines the brightness (more precisely, the radiance) of a laser beam. https://www.rp-photonics.com/m2_factor.html...
Accurate evaluation of the intensity distribution around the focal point is necessary not only for an accurate determination of the spot size, but also for understanding the quality of the beam and the focusing elements used in particular experiments. The exact beam shape should also be qualified ...
Surface quality60/40, 40/20 Angle tolerance<3arc min~ 30 arc sec. Principal transmittanceTpave > 96%, Ts,1% (Narrowband) Tpave > 95%, Ts,1% (Broadband) Principal reflectanceRs>99%, Rp<5% Coating Hypotenuse face: Polarization beamsplitter coating; ...
Surface Quality60-40 40-20 Flatness≤λ/4@633nm or better Beam Deviation Standard: 0°±3′(T), 90°±5′(R) High Pricision: 0°±3″(T), 90°±5″(R) CoatingCemented Face: T/R=50/50±5%, T=(Ts+Tp)/2, R=(Rs+Rp)/2 ...
The M2 factor, also known as the beam quality factor, compares the performance of a real laser beam with that of a diffraction-limited Gaussian beam.1 Gaussian irradiance profiles are symmetric around the center of the beam and decrease as the distance from the center of the beam perpendicular...
Using our advertising package, you can display your logo, further below your product description, and these will been seen by many photonics professionals. 24 suppliers for beam quality measurement devices are found in the RP Photonics Buyer's Guide. Among them: Find more supplier details at the...
Rüdiger Paschotta, RP Photonics AG, RP Photonics AG Abstract: It is well known that the phenomenon of spatial walk-off can degrade the beam quality in nonlinear conversion processes. The article shows, however, that this is not necessarily the case, even in cases with strong walk-off....
Beam Quality Calculations Center wavelength: M2 factor: calc (from BPP) Beam parameter product: calc (from M2) Beam waist radius: calc (using the BPP and divergence half-angle) Divergence half-angle: calc (using the BPP and beam waist radius) Enter input values with units, where ...