Title :
Progress towards an ultracompact cw terahertz spectrometer
Author :
Deninger, A. ; Stanze, D. ; Schindler, S. ; Schlak, M. ; Sartorius, B. ; Kaenders, W.
Author_Institution :
TOPTICA Photonics AG, Gräfelfing, Germany
Abstract :
A cw terahertz spectrometer operating without optical amplifiers and without mechanical delay line is presented. Fiber-coupled 1.5 μm DFB lasers in a “butterfly” housing drive a photodiode emitter, which provides 5 μW output at 0.5 THz. A coherent photoconductive receiver yields an SNR up to 75 dB.
Keywords :
distributed feedback lasers; photodiodes; spectrometers; terahertz spectroscopy; coherent photoconductive receiver; fiber-coupled DFB lasers; frequency 0.5 THz; photodiode emitter; power 5 muW; size 1.5 mum; ultracompact cw terahertz spectrometer; Fiber lasers; Laser tuning; Optical fiber amplifiers; Receivers; Signal to noise ratio;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612397
