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Radial and azimuthal polarized all-fiber Raman oscillator

: Jocher, C.; Jauregui, C.; Becker, M.; Rothhardt, M.; Limpert, J.; Tünnermann, A.


Institute of Electrical and Electronics Engineers -IEEE-:
Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference, CLEO®/Europe-IQEC 2013 : 12-16 May 2013, Munich, Germany
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4799-0593-5 (Print)
ISBN: 978-1-4799-0594-2
1 pp.
Conference on Lasers and Electro-Optics (CLEO Europe) <2013, Munich>
International Quantum Electronics Conference (IQEC) <2013, Munich>
Conference Paper
Fraunhofer IOF ()

The generation of radially and azimuthally polarized beams has attracted significant interests in recent years due to the outstanding benefits that they bring in material processing, microscope applications and optical tweezers. These two polarization types belong to the so-called cylindrical vector beams with spatially invariant polarization. The intensity profile of such beams is doughnut-shaped due to the presence of a polarization vortex at the centre of the beam. In general it is challenging to generate radially and azimuthally polarized beams, therefore, different sophisticated approaches have been developed such as the spatial light modulator [1], sub-wavelength gratings [2] and interferometric setups [3], just to name a few. All of these examples are free-space optics. However, in order to build compact and stable setups, all fiber-setups are preferred.