Gaussian content as a laser beam quality parameter.

@article{Ruschin2011GaussianCA,
  title={Gaussian content as a laser beam quality parameter.},
  author={Shlomo Ruschin and Elad Yaakobi and Eyal Shekel},
  journal={Applied optics},
  year={2011},
  volume={50 22},
  pages={
          4376-81
        }
}
We propose the Gaussian content (GC) as an optional quality parameter for the characterization of laser beams. It is defined as the overlap integral of a given field with an optimally defined Gaussian. The definition is especially suited for applications where coherence properties are targeted. Mathematical definitions and basic calculation procedures are given along with results for basic beam profiles. The coherent combination of an array of laser beams and the optimal coupling between a… 
View on PubMed
arxiv.org
10 Citations
Background Citations
2
Methods Citations
1

Figures and Tables from this paper

10 Citations

In situ measurement of laser beam quality

An innovative optical method is introduced for the beam quality measurement of any arbitrary transverse mode based on the reconstruction of the mode from a few-frame image of the beam cross-section.…

In situ measurement of laser beam quality

An innovative optical method is introduced for the beam quality measurement of any arbitrary transverse mode based on the reconstruction of the mode from a few-frame image of the beam cross-section.…

The limitations of using M-squared for input beam characterization in simulation software

The M-squared (M2) parameter for defining laser beam quality is a convenient metric to characterize the variation of the beam size and far field divergence of a “real” propagated optical beam,…

Metric for the measurement of the quality of complex beams: a theoretical study.

A theoretical study of various definitions of laser beam width in a given cross section found an axially symmetric self-MFT function, which may be useful for descriptions of diffraction-quality beams.

Analytic functions of optical choppers for Gaussian laser beams

The paper presents a report on our current work on obtaining the analytic functions of the laser impulses generated by optical choppers with disks in their classical configuration - with windows that…

Role of Arbitrary Intensity Profile Laser Beam in Trapping of RBC for Phase-imaging

Red blood cells (RBCs) are customarily adhered to a bio-functionalised substrate to make them stationary in interferometric phase-imaging modalities. This can make them susceptible to receive…

Influence of arbitray mode in cluster formation in optical tweezers

Odontological light-emitting diode light-curing unit beam quality

The distribution of light intensity of three light-curing units to cure the resin-based composite for dental fillings was analyzed, and a homogeneity index [flat-top factor (FTF)] was calculated, based on the M2 index, which is used for laser beams.

11(78-87)(완료)E15214 ed-Ranjeet Kumar.hwp

Red blood cells (RBCs) are customarily adhered to a bio-functionalised substrate to make them stationary in interferometric phase-imaging modalities. This can make them susceptible to receive…

Theoretical Study of Laser Beam Quality and Pulse Shaping by Volume Bragg Gratings

References

SHOWING 1-10 OF 21 REFERENCES

Beam quality factor for coherently combined fiber laser beams

Beam quality in monomode diode lasers

An analytic and measurable beam parameter is defined for beams emerging from heterojunction monomode diode lasers with very thin active layers, which provides a joint description of their focusing…

Defining, measuring, and optimizing laser beam quality

  • A. Siegman
  • Physics
    Photonics West - Lasers and Applications in Science and Engineering
  • 1993
This paper will review a very general and useful formalism that has recently been developed for defining the transverse beam quality as well as other propagation parameters of arbitrary real laser…

Beam divergence and waist measurements of laser diodes by near-field scanning optical microscopy

We demonstrate the use of near-field scanning optical microscopy (NSOM) for the measurement of the beam properties of single quantum well, graded index separate confinement heterojunction ridge laser…

Laser beam combining for high-power, high-radiance sources

  • T. Fan
  • Physics
    IEEE Journal of Selected Topics in Quantum Electronics
  • 2005
Beam combining of laser arrays with high efficiency and good beam quality for power and radiance (brightness) scaling is a long-standing problem in laser technology. Recently, significant progress…

Beam quality of InGaAs ridge lasers at high output power.

The small beam astigmatism (typically 2 µm) measured under CW operating conditions in the linear regime indicates that the mode is essentially index guided, which permits simple quantitative modeling of the waveguide.

Beam propagation factor of partially coherent Hermite-Gaussian array beams

The analytical expression for the beam propagation factor (M2-factor) of partially coherent Hermite–Gaussian (H–G) array beams is derived. It is shown that for the superposition of the intensity the…

Gain−induced guiding and astigmatic output beam of GaAs lasers

We report on experimental evidence for gain−induced guiding and refractive−index antiguiding along the junction plane of stripe−geometry double−heterostructure GaAs lasers. It had previously been…

Coherent combining technology of master oscillator power amplifier fiber arrays.

The Master Oscillator-Power Amplifier scheme is used to realize phase controlling of three ytterbium fiber amplifiers, the experiment results of both two and three Fiber amplifiers are given and compared and far-field patterns with different fill factor are studied experimentally.

The angular beam divergence in double-heterojunction lasers with very thin active regions

An analytical expression is found for the angular beam divergence from a double-heterojunction (DH) laser in the limit of an infinitely thin active region. In this limit the beam divergence is…