2018 BFY III Abstract Detail Page
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||W56: Diode Laser Pumped Nd:YAG Frequency Doubling
||YAG LASER PUMPED DIODE:
First the pump diode laser is characterized. Then the process of optical pumping and the emitted spontaneous fluorescence are analyzed spectrally and temporally by modulation and changing the wavelength of the pump laser leading to the Einstein coefficients. In a third step the laser operation is initiated by adding the second cavity mirror. The laser threshold and efficiency are determined and by modulating the pump laser diode the so called spiking effect demonstrated. By changing the length of the laser cavity the stability criterion is verified. Enhancing the basic set-up of the diode pumped Nd:YAG laser by a KTP crystal module placed into the laser cavity leading to a frequency doubled green (532 nm) visible output. By adding the optional adjustable iris the transverse mode structure can be controlled for various TEM structures down to TEM00.
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