Titlebook: Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering; Vorträge des 7 Inter Wilhelm Waidelich (o. Professor, Vorstand,

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Laser Action in Stoichiometric Nd3+, Pr3+ and Er3+ Compoundsaser properties[ 1]. In these materials the neodymium enters as a constituent resulting in a very high concentration of active ions, of the order of 5 × 10. cm., and a very high optical gain allowing thus, effective miniaturization. In the neodymium phosphates laser emission has been obtained in lab

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Tunable Wavelength Selective Semiconductor Laser Systemsulation. Laser diodes with distributed Bragg reflector (DBR) [1] oscillate with extreme spectral purity at the wavelength determined by the Bragg condition. Distributed feedback (DFB) lasers [2] show similar behavior when a λ/4-phase shift is introduced for suppressing one of the two dominating mode

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ors.Includes promising methods for testing under voltage (wi.This textbook covers in detail the problem of improving the reliability and service life of high-voltage equipment in electric power systems, mainly through testing, monitoring, and diagnostics, which support the timely repair or replaceme

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H. J. Eichler,H. Hamisch,B. Nagel,W. Schmidvolve during normal operation condition. This may lead to chemical processes associated with a gradual deterioration of the integral insulation properties. Finally, weak spots and, in extreme case, a breakdown might occur, which causes not only an unexpected outage of HV equipment but also physical,

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H. Schülke,V. Sturmvolve during normal operation condition. This may lead to chemical processes associated with a gradual deterioration of the integral insulation properties. Finally, weak spots and, in extreme case, an ultimate breakdown might occur, which causes not only an unexpected outage of HV equipment but also

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