Photonics in the Mid-Infrared: Challenges in Single-Chip Integration and Absorption Sensing

Autor: Bernhard Jakoby, Ventsislav Lavchiev
Rok vydání: 2017
Předmět:
Zdroj: IEEE Journal of Selected Topics in Quantum Electronics. 23:452-463
ISSN: 1558-4542
1077-260X
DOI: 10.1109/jstqe.2016.2619330
Popis: Photonics has been extensively exploited in the visible and near-infrared spectral ranges. Sensing of liquids and gases is a promising area for advancing of the photonics also in the mid-infrared spectral range (MIR). Of particular interest is the realization of Si-based MIR devices and their integration on a single chip. In this paper, the fundamental material challenges for the fabrication of photonic and opto-electronic devices in the mid-infrared are discussed. An approach for development, characterization, and integration of numerous photonic components for the spectral range λ = 4–6 μm is presented. Using Si, SiOx, and Si3N 4 as a material base, it is illustrated that fully Si-compatible active and passive devices are possible, which can be readily integrated onto a silicon chip. Finally, a compact mathematical model is provided for evanescent sensing of fluids with rib and photonic crystal waveguides.
Databáze: OpenAIRE