High power erbium doped fiber laser generating switchable radially and azimuthally polarized beams at 1.6 µm wavelength

Renjie Zhou; Baldemar Ibarra-Escamilla; Joseph W. Haus; Peter E. Powers; Qiwen Zhan

doi:10.1117/12.845961

17 February 2010 High power erbium doped fiber laser generating switchable radially and azimuthally polarized beams at 1.6 µm wavelength

Renjie Zhou, Baldemar Ibarra-Escamilla, Joseph W. Haus, Peter E. Powers, Qiwen Zhan

Author Affiliations +

Proceedings Volume 7580, Fiber Lasers VII: Technology, Systems, and Applications; 75802Y (2010) https://doi.org/10.1117/12.845961
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

An erbium-doped fiber laser cavity design is demonstrated to produce radially and azimuthally polarized beams. A c-cut calcite crystal is set within a three-lens telescope system in the laser cavity. Due to the birefringence of the crystal, radial and azimuthal polarizations are focused to different foci. The ray behavior through the crystal is discussed in details with birefringent ray tracing. By translating a collimation lens, one can select either the radial or the azimuthal polarization to lase in the cavity. The maximum output power obtained is about 140 mW for both polarizations.

Citation Download Citation

Renjie Zhou, Baldemar Ibarra-Escamilla, Joseph W. Haus, Peter E. Powers, and Qiwen Zhan "High power erbium doped fiber laser generating switchable radially and azimuthally polarized beams at 1.6 µm wavelength", Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 75802Y (17 February 2010); https://doi.org/10.1117/12.845961

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