Title :
Active frequency-noise reduction of a Mid-IR quantum cascade laser without optical frequency reference
Author :
Tombez, Lionel ; Schilt, Stephane ; Sudmeyer, Thomas
Author_Institution :
Lab. Temps-Frequence, Univ. de Neuchatel, Neuchatel, Switzerland
Abstract :
Frequency-noise reduction of a 4.55-μm distributed-feedback quantum cascade laser is demonstrated using the voltage fluctuations across its junction as an error signal only. A 10-fold reduction of the frequency-noise power spectral density is achieved.
Keywords :
distributed feedback lasers; fluctuations; laser beams; laser noise; quantum cascade lasers; active frequency-noise reduction; distributed-feedback quantum cascade laser; error signal; frequency-noise power spectral density; mid-IR quantum cascade laser; optical frequency reference; voltage fluctuations; wavelength 4.55 mum; Adaptive optics; Fluctuations; Frequency measurement; Quantum cascade lasers; Semiconductor device measurement; Voltage fluctuations; Voltage measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
