Title :
CW terahertz spectrometer with high-precision frequency control
Author :
Roggenbuck, Axel ; Deninger, Anselm ; Mayorga, Iván Cámara ; Schmitz, Holger ; Hemberger, Joachim ; Lison, Frank ; Grüninger, Markus
Author_Institution :
TOPTICA Photonics AG, Grafelfing, Germany
Abstract :
We realized a continuous-wave terahertz spectrometer based on optical heterodyning of two near-infrared distributed-feedback diode lasers. Using active frequency stabilization we achieve 1 MHz resolution and a signal-to-noise ratio up to 80 dB.
Keywords :
distributed feedback lasers; frequency control; semiconductor lasers; submillimetre wave spectroscopy; terahertz spectroscopy; terahertz wave imaging; continuous wave terahertz spectrometer; high precision frequency control; near infrared distributed feedback diode laser; optical heterodyning; Diodes; Fiber lasers; Frequency control; Laser beams; Laser feedback; Laser tuning; Optical fiber polarization; Optical mixing; Semiconductor laser arrays; Spectroscopy; (140.3490) Lasers, distributed-feedback; (300.6495) Spectroscopy, terahertz;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
