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Beam combining with using beam shaping
SPIE Proceedings, 2012Performance of spectral beam combining depends on thermal effects on the optical components like volume Bragg gratings used for spectral selectivity of the beams combined. These thermal effects are results of absorption of laser radiation and in case of high power lasers can lead to reduction of efficiency of combining and losses.
Alexander Laskin +5 more
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Effect of crosstalk on combined beam characteristics in spectral beam combining systems
Optics Communications, 2017Abstract In a spectral beam combining (SBC) system, crosstalk always happens because stray lights are inevitable due to fabrication errors of optical components and ‘smile’ effect of laser arrays. Two kinds of crosstalk, including the crosstalk generated between two adjacent emitters of the laser array (ad-crosstalk) and that generated between two ...
Lei Yang +3 more
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A Proposed Beam-Beam Test Facility COMBINE
2021Proceedings of the 12th International Particle Accelerator Conference, IPAC2021, Campinas, SP ...
Nissen, Edith +2 more
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1999 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, 2003
There are numerous applications for a device that can combine multiple laser beams into a single one. For example, a compact, high power ladar (laser radar) can be realized by combining the output of many diode lasers. Here, we demonstrate the basic features of a holographic device which has the potential to combine upto 20 laser beams into one high ...
M.S. Shahriar, W. Weathers, J. Riccobono
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There are numerous applications for a device that can combine multiple laser beams into a single one. For example, a compact, high power ladar (laser radar) can be realized by combining the output of many diode lasers. Here, we demonstrate the basic features of a holographic device which has the potential to combine upto 20 laser beams into one high ...
M.S. Shahriar, W. Weathers, J. Riccobono
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Coherent beam combining of cylindrical vector beams for power scaling
Optics Letters, 2023Coherent beam combining (CBC) of cylindrical vector beams (CVBs) based on an active phase controller is proposed and demonstrated. Experimentally, two pieces of spatially variant wave plates (S-wave plate) were employed as vector mode convertors for two individual 1064-nm fiber amplifier channels.
Shixin, Liu +12 more
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1982
Abstract : The fabrication, test, and analysis of a two-wave length dual-frequency beam sampling grating has been performed. Measurements of the efficiency, diffracted wavefront quality, frequency ratio, and skew are described. Analysis of the effects of nonzero skew and frequency ratio residual on its performance are presented, as well as the required
Mary A. Mullahy +2 more
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Abstract : The fabrication, test, and analysis of a two-wave length dual-frequency beam sampling grating has been performed. Measurements of the efficiency, diffracted wavefront quality, frequency ratio, and skew are described. Analysis of the effects of nonzero skew and frequency ratio residual on its performance are presented, as well as the required
Mary A. Mullahy +2 more
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Fully symmetric nulling beam combiners
Applied Optics, 2001A simple method of nulling broadband light is presented. A mirror-symmetric pair of right-angle periscopes is first used to introduce a geometric field flip between two incident light beams, after which the light is combined by means of one of a number of constructive two-beam interferometers.
E, Serabyn, M M, Colavita
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Subwavelength diffractive color beam combiner
Applied Optics, 2014A high-efficiency subwavelength diffractive beam combiner operating in a visible spectral range is designed, fabricated, and demonstrated. Such a device combines red, green, and blue color beams into one output light beam. Diffraction efficiencies of different types of gratings are calculated for various materials, incidence angles, and polarizations ...
Nikolai I, Petrov +4 more
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Azimuthal multiple-beam interference effects with combinations of vortex beams
Optics Letters, 2015We create a series of vortex beams consisting of positive and negative topological charges and develop a geometry where they interfere creating azimuthal multiple-beam interference effects. Usually the combination of two beams with opposite charges creates an azimuthal two-beam interference effect where the intensity varies sinusoidally with azimuthal ...
Ignacio, Moreno +3 more
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Theoretical research of beam combination between hollow beam and Gaussian beam
SPIE Proceedings, 2017The near and far field intensity distribution as well as the beam quality of the combination between the hollow beam generated by double axicons and the Gaussian beam were simulated in this paper. The simulation results revealed that several parameters like the interval between two axicons and the phase difference between the two beams would influence ...
Peng Wang +3 more
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