Spectral properties of diode-pumped non-planar monolithic Nd:YAG ring lasers |
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| Authors: | J. W. Czarske R. Philipps I. Freitag |
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| Affiliation: | (1) Institut für Mess- und Regelungstechnik im Maschinenbau, Universität Hannover, Nienburger Strasse 17, D-30167 Hannover, Germany;(2) Laser Zentrum Hannover e.V., Hollerithallee 8, D-30419 Hannover, Germany |
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| Abstract: | The coherence length of a single-frequency monolithic Nd:YAG ring laser is determined by using a highly unbalanced all-fiber Mach-Zehnder interferometer. A coherence length larger than  1500km and a 3 dB linewidth less than 60 Hz is estimated.Furthermore, an easy method to measure the temperature dependence on several laser parameters is described. This method is based on the laser emission in multiple axial modes, which is enforced by coherent optical feedback. A model explaining the multimode behaviour is presented. |
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| Keywords: | 42.55 42.60 |
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