Turbidimeters operate based on the optical phenomena that occur when incident light
through water body is scattered by the existence of foreign particles which are suspended …

We report on the fabrication and characterization of a volatile organic compound sensor
architecture addressing common drawbacks of photonic integrated sensors such as …

A simple all optical fiber sensor based on multimode interference (MMI) for chemical liquids
sensing was designed and fabricated. A segment of coreless fiber (CF) was spliced between …

A physical micromachining technique is demonstrated in a low-loss flat-fiber substrate to
fabricate a multimode interference (MMI) device. The flat-fiber substrate is a low-index …

Rapid, sensitive, and reliable detection of aromatic amines, toxic manufacturing byproducts,
has been previously achieved with molecular vibrations in the mid-infrared (Mid-IR) region …

Recently, optical passive devices and active devices have drawn considerable attention for
several applications such as medicine, bio-technology and chemistry. High sensitive blood …

In this study, we propose an all optical sensor based on nonlinearity in a multimode
interference coupler. The sensor can be tuned to highest sensitivity in the refractive index …

Os objetivos desta tese são: o estudo e aprimoramento dos diferentes parâmetros
geométricos e de processo de fabricação de guias de onda ARROW (Anti-Resonant …

This thesis describes the development of optical devices in a novel flat-fibre platform. Device
fabrication is achieved using direct grating writing and physical micromachining techniques …

In this study, we investigate the sensing applications in the presence of the nonlinear effects
by proposing an all-optical sensor and considering nonlinear effects on modal propagation …