26 January 2018 Controlling QCLs for frequency metrology from the infrared to the THz range
Author Affiliations +
The Quantum Cascade Laser is becoming a key tool for plenty of applications, from the IR to the THz range. Progress in nearby areas, such as the development of ultra-low loss crystalline microresonators, optical frequency standards and optical fiber networks for time&frequency dissemination, are paving the way to unprecedented applications in many fields. For the most demanding applications, a thorough control of quantum cascade lasers (QCLs) emission must be achieved. In the last few years, QCLs unique spectral features have been unveiled, while multifrequency, comb-like QCLs have been demonstrated. Ultra-narrow frequency linewidths are necessary for metrological applications, ranging from cold molecules interaction and ultra-high sensitivity spectroscopy to infrared/THz metrology. In our group, we are combining crystalline microresonators, with a combined high quality factor in the infrared and ultra-broadband spectral coverage, with QCLs and other nonlinear highly coherent and frequency referenced sources. Frequency referencing to optical fiber-distributed optical primary standards offers astonishing stability values of 10-16 @1-sec timescales in laboratory environments but several hundred kilometres far away from the primary clocks. A review will be given of the present status of research in this field, with a view to perspectives and future applications.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Luigi Consolino, Luigi Consolino, Francesco Cappelli, Francesco Cappelli, Michele De Regis, Michele De Regis, Giulio Campo, Giulio Campo, Iacopo Galli, Iacopo Galli, Davide Mazzotti, Davide Mazzotti, Pablo Cancio , Pablo Cancio , Simone Borri, Simone Borri, Giovanni Giusfredi, Giovanni Giusfredi, Saverio Bartalini, Saverio Bartalini, Paolo De Natale, Paolo De Natale, } "Controlling QCLs for frequency metrology from the infrared to the THz range", Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105401I (26 January 2018); doi: 10.1117/12.2283226; https://doi.org/10.1117/12.2283226


Quantum cascade laser THz metrology
Proceedings of SPIE (February 07 2015)
Frequency metrology with quantum cascade lasers
Proceedings of SPIE (January 25 2009)
THIS: a tuneable heterodyne infrared spectrometer for SOFIA
Proceedings of SPIE (September 25 2007)

Back to Top