Stefan Spießberger
Broschiertes Buch

Compact Semiconductor-Based Laser Sources with Narrow Linewidth and High Output Power

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This work presents a fully semiconductor-based laser source that meets the requirements of coherent optical communication links in space and further allows to benefit from the numerous advantages of semiconductor lasers. A hybrid master oscillator power amplifier (MOPA) concept enables narrow-linewidth high-power operation. The experimental part of this thesis describes how the linewidth of the laser sources is characterized with a beat note measurement technique. A novel heterodyne linewidth measurement setup with a weak frequency lock of the two lasers features a virtually unlimited resoluti...