Investigation of SOI Raman Lasers for Mid-Infrared Gas Sensing

Sensors

Vittorio M.N. Passaro¹ 

[1] Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, via Edoardo Orabona n. 4, 70125 Bari, Italy

关键词: raman lasers;    stimulated raman scattering;    nonlinear waveguides;    optical sensors;    integrated optics;    silicon-on-insulator;   

DOI  :  10.3390/s91007814

来源: mdpi

【 摘 要 】

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 C₂H₆ and CO₂, at a moderate power level of 130 mW.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.