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High-resolution hyperspectral single-pixel imaging system based on compressive ...

For the first time, a high-resolution hyperspectral single-pixel imaging system based on compressive sensing is presented and demonstrated. The system integrates a digital micro-mirror device array to optically compress the image to be acquired and an optical spectrum analyzer to enable high spectral resolution. The system's ability to successfully reconstruct images with 10 pm spectral resolution is proven.

Intrinsic Fabry-Pérot Cavity Sensor based on Etched Multimode Graded Index fiber

Pressure and Temperature Characterization of Two Interferometric Configurations...

High dynamic range compressive imaging: a programmable imaging system

Some scenes and objects have a wide range of brightness that cannot be captured with a conventional camera. This limitation, which degrades the dynamic range of an imaged scene or object, is addressed by use of high dynamic range (HDR) imaging techniques. With HDR imaging techniques, images of a very broad range of intensity can be obtained with conventional cameras. Another limitation of conventional cameras i...

Optical Fiber Refractometry Based on Multimode Interference

Fibre Optic Hot-Wire Flowmeter Based on a Metallic Coated Hybrid LPG-FBG Structure

In this work an all optical hot-wire flowmeter based on a silver coated fibre incorporating a long period grating and a Bragg grating is demonstrated. Optical energy at 1480 nm propagating down the fibre is coupled by the long period grating into the fibre cladding and absorbed by the metallic coating deposited on the fibre surface over the Bragg grating position. This absorption acts like a hot-wire raising lo...

A Smart Skin PVC Foil Based on FBG Sensors for Monitoring Strain and Temperature

Fiber Bragg Grating Structures with Fused Tapers

Simultaneous Measurement of Humidity and Temperature Based on an SiO2-Nanospher...

A novel configuration able to measure simultaneously relative humidity and temperature is proposed. The sensing head is based on a long-period fiber grating (LPG) coated with silica nanospheres in-line with a fiber Bragg grating. The polymeric overlay that changes its optical properties when exposed to different humidity levels is deposited onto the LPG using the electrostatic self-assembly technique (ESA), res...

Temperature and Strain-Independent Curvature Sensor Based on a Single mode/Mult...