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Generation of THz bit patterns using phase-only optical pulse shaping

: Ramer, J.-M.; Freymann, G. von


Institute of Electrical and Electronics Engineers -IEEE-:
International Topical Meeting on Microwave Photonics, MWP 2013 : 28-31 October 2013, Alexandria, Virginia, USA
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4673-6071-5
ISBN: 978-1-4673-6069-2
International Topical Meeting on Microwave Photonics (MWP) <2013, Alexandria/Va.>
Fraunhofer IPM ()

We demonstrate bit pattern generation in the terahertz spectral range by optical pulse shaping. Terahertz radiation is generated and detected via a terahertz time domain spec-troscopy driven by a frequency doubled femtosecond fiber laser. Emitter and detector are photoconductive antennas based on low-temperature grown GaAs. The pulse shaping setup makes use of phase-only filtering in the frequency domain. The Gerchberg-Saxton-algorithm is used for nearly real-time generation of phase masks.