Title :
Generation of THz bit patterns using a fiber-coupled optical pulse shaper
Author :
Ramer, Jan-Martin ; von Freymann, Georg
Author_Institution :
Fraunhofer Inst. for Phys. Meas. Tech. IPM, Kaiserslautern, Germany
Abstract :
We implement optical pulse shaping into a photo-conductive antenna (PCA) based THz time domain spectroscopy (THz-TDS) system using fiber coupling between emitter and pulse shaper. We use phase-only pulse shaping for the generation of bit patterns. An additional phase mask is applied in the pulse shaper to cancel dispersion introduced by the optical fiber. The generated waveforms are coupled into a low-noise amplifier (LNA) designed for the H band (220 to 330 GHz).
Keywords :
antennas; low noise amplifiers; optical fibre couplers; optical pulse shaping; terahertz spectroscopy; terahertz wave generation; THz bit patterns; THz time domain spectroscopy; fiber coupled optical pulse shaper; frequency 220 GHz to 330 GHz; low noise amplifier; optical pulse shaping; phase mask; phase only pulse shaping; photoconductive antenna; Couplings; Detectors; Gratings; Optical pulse shaping; Optical pulses; Principal component analysis;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6955996
