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Freiburg 2019 – scientific programme

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FM: Fall Meeting

FM 86: Poster: Secure Communication & Computation

FM 86.4: Poster

Thursday, September 26, 2019, 16:30–18:30, Tents

Fiber-based source for QKD around 1550 nm — •Maximilian Tippmann, Oleg Nikiforov, Erik Fitzke, and Thomas Walther — AG Laser und Quantenoptik, Institut für Angewandte Physik, Technische Universität Darmstadt, Schlossgartenstr. 7, 64289 Darmstadt, Germany

We develop an all-fiber system for quantum key distribution in a commercial telecom network via energy-time entangled photons. Our source consists of a PPLN crystal pumped by a MOPA with subsequent SHG and can be operated in cw as well as pulsed. A modular setup guarantees robust and flexible operation outside of a controlled lab environment. In the contribution, we discuss the performance of the whole system and its components.

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