title: Investigation of SOI Raman Lasers for Mid-Infrared Gas Sensing.
abstract: In this paper, the investigation and detailed modeling of a cascaded Raman laser, operating in the midwave infrared region, is described. The device is based on silicon-on-insulator optical waveguides and a coupled resonant microcavity. Theoretical results are compared with recent experiments, demonstrating a very good agreement. Design criteria are derived for cascaded Raman lasers working as continuous wave light sources to simultaneously sense two types of gases, namely C(2)H(6) and CO(2), at a moderate power level of 130 mW.
authors.affiliation: Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, via Edoardo Orabona n. 4, 70125 Bari, Italy.
authors.forename: Vittorio M N
authors.initials: VM
authors.lastname: Passaro
authors.forename: Francesco
authors.initials: F
authors.lastname: De Leonardis