Experimental analysis of the effects of orientation and location of the Pockels cell in an Nd:YAG laser resonator |
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| Authors: | R Sundar K Ranganathan Jogy George SM Oak |
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| Institution: | 1. LPKF Laser & Elektronika d.o.o., Polica 33, SI-4202 Naklo, Slovenia;2. University of Ljubljana, Faculty of Mechanical Engineering, A?ker?eva cesta 6, SI-1000 Ljubljana, Slovenia;1. Hospital de Clínicas da Universidade Federal de Uberlândia, Uberlândia, MG, Brazil;2. Instituto de Psicologia da Universidade Federal de Uberlândia, Uberlândia, MG, Brazil;3. Departamento de Clínica Médica da Universidade Federal de Uberlândia, Uberlândia, MG, Brazil;1. École Polytechnique Fédérale de Lausanne, LSU, ISIC, FSB-BSP, CH-1015 Lausanne, Switzerland;2. École Polytechnique Fédérale de Lausanne, LCBC, ISIC, FSB-BSP, CH-1015 Lausanne, Switzerland;3. SwissFEL, Paul Scherrer Inst, CH-5232 Villigen, Switzerland;4. School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK;5. European Synchrotron Radiation Facility, Boîte Postale 220, 38043 Grenoble Cedex 9, France;1. Centro de Investigaciones en Óptica, A.C.Loma del Bosque No. 115 León Gto., Mexico;2. Centro Nacional de Metrología, Querétaro 76246, México;3. Brookhaven National Laboratory NSLS II 50 Rutherford Drive, Upton 11973-5000, New York, USA |
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| Abstract: | We report an experimental study on the effects of the orientation and location of a Pockels cell used as electro-optic Q-switch in a laser resonator. Out of the four resonator configurations studied, it was found that in two resonator configurations a high cavity-Q value of the resonator was maintained in Q-switched operation, irrespective of the orientation of the crystallographic axis of the Pockels cell with respect to the incident plane of polarization. Further, analysis of the polarization state of the output in one of the configurations showed that it is always linearly polarized in the plane of the pass axis of the intra-cavity polarizer. In the other configuration it was observed that, as the Pockels cell was rotated, the plane of the linearly polarized output light was rotated correspondingly. For all of the resonator configurations, our experimental results are in good agreement with a Jones matrix analysis |
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