Taito Alahautala - Academia.edu (original) (raw)

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Papers by Taito Alahautala

Research paper thumbnail of Diode laser illumination for the visualisation of motion and fl ow processes

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Research paper thumbnail of Focusing diode lasers using a truncated paraboloid with spherical output surface

Optical Engineering, 2007

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Research paper thumbnail of Optical measurement of pulp quantity in a rotating disc refiner

Measurement Science & Technology, 2004

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Research paper thumbnail of EXPERIMENTAL SET-UP FOR STUDY OF CHIP FORMATION IN TURNING

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Research paper thumbnail of Focusing diode laser light with a truncated dielectric paraboloid

Optical Engineering, 2005

The properties of a paraboloid made of dielectric material and truncated from the focal plane are... more The properties of a paraboloid made of dielectric material and truncated from the focal plane are studied. In addition, the focusing of light emitted by astigmatic diode lasers with a truncated paraboloid is discussed. Finally, ray-tracing calculations are presented for a high-numerical-aperture truncated paraboloid used for focusing light emitted by a large number of diode lasers in an axially symmetric

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Research paper thumbnail of Compact Stacking of Diode Lasers for Pulsed Light Sources of High Brightness

Applied Optics, 2004

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Research paper thumbnail of Generation of uniform light by use of diode lasers and a truncated paraboloid with a Lambertian scatterer

Applied Optics, 2004

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Research paper thumbnail of Axially symmetric fiber side pumping

Optics Express, 2006

A method for axially symmetric fiber side pumping is proposed. The method is based on a coupling ... more A method for axially symmetric fiber side pumping is proposed. The method is based on a coupling structure and a pump source that both utilize the axially symmetric geometry of a typical optical fiber. The coupling structure can be manufactured by adding material to and/or by removing material from the fiber. In principle, the method enables the launch of kilowatt-level pump power into the fiber through a single coupling structure. The conditions for successful coupling and a simple experimental verification of the method are presented. In the experiments over 90 % of the launched light fell inside the coupling area and the potential for efficient coupling into a double clad fiber was demonstrated.

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Research paper thumbnail of High Power Density Beam from Narrow Diode-Laser Arrays in Axial Symmetry

Applied Optics, 2004

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Research paper thumbnail of Diode laser illumination for the visualisation of motion and fl ow processes

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Focusing diode lasers using a truncated paraboloid with spherical output surface

Optical Engineering, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Optical measurement of pulp quantity in a rotating disc refiner

Measurement Science & Technology, 2004

Bookmarks Related papers MentionsView impact

Research paper thumbnail of EXPERIMENTAL SET-UP FOR STUDY OF CHIP FORMATION IN TURNING

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Focusing diode laser light with a truncated dielectric paraboloid

Optical Engineering, 2005

The properties of a paraboloid made of dielectric material and truncated from the focal plane are... more The properties of a paraboloid made of dielectric material and truncated from the focal plane are studied. In addition, the focusing of light emitted by astigmatic diode lasers with a truncated paraboloid is discussed. Finally, ray-tracing calculations are presented for a high-numerical-aperture truncated paraboloid used for focusing light emitted by a large number of diode lasers in an axially symmetric

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Research paper thumbnail of Compact Stacking of Diode Lasers for Pulsed Light Sources of High Brightness

Applied Optics, 2004

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Generation of uniform light by use of diode lasers and a truncated paraboloid with a Lambertian scatterer

Applied Optics, 2004

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Axially symmetric fiber side pumping

Optics Express, 2006

A method for axially symmetric fiber side pumping is proposed. The method is based on a coupling ... more A method for axially symmetric fiber side pumping is proposed. The method is based on a coupling structure and a pump source that both utilize the axially symmetric geometry of a typical optical fiber. The coupling structure can be manufactured by adding material to and/or by removing material from the fiber. In principle, the method enables the launch of kilowatt-level pump power into the fiber through a single coupling structure. The conditions for successful coupling and a simple experimental verification of the method are presented. In the experiments over 90 % of the launched light fell inside the coupling area and the potential for efficient coupling into a double clad fiber was demonstrated.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of High Power Density Beam from Narrow Diode-Laser Arrays in Axial Symmetry

Applied Optics, 2004

Bookmarks Related papers MentionsView impact

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