Quantum limited frequency noise of a quantum cascade laser frequency comb

Year: 2014

Authors: Cappelli F., Villares G., Riedi S., Hugi A., Faist J.

Autors Affiliation: Institute for Quantum Electronics, ETH Zurich, Zürich, 8093, Switzerland; CNR-INO – Istituto Nazionale di Ottica, Largo Enrico Fermi 6, Firenze FI, 50125, Italy; LENS – European Laboratory for Non-Linear Spectroscopy, Via Nello Carrara 1, Sesto Fiorentino FI, 50019, Italy

Abstract: The optical frequency comb synthesizer (OFCS) is nowadays a fundamental tool for near infrared spectroscopy and metrology. Since the fundamental ro-vibrational transitions of simple molecules fall in the mid-infrared (MIR), it is of particular interest for spectroscopy applications to have OFCSs operating in this spectral region. Quantum cascade lasers (QCLs) have proved to be sources capable to generate frequency combs (QCL-combs) [1, 2]: the phase locking among the modes is guaranteed by four-wave mixing. © 2015 IEEE

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More Information: Sponsors: EPL; EPS; OSA; World of Photonics Congress
KeyWords: Spectroscopy; Optical parametric oscillators; dual-comb spectroscopy