Silicon based ARROW-A structures have been designed in order to obtain a high sensitive integrated optical transducer for sensing applications. The sensor has a Mach-Zehnder interferometer configuration. The optical waveguides that confonn its structure have to verify two conditions: monornode behaviour and high surface sensitivity. In this paper we present a theoretical simulation of the propa...

Integrated label-free photonic biosensors provide an excellent limit of detection in combination with a low-cost disposable. Their application has thus far been limited by the necessity of an expensive tunable laser. In this article, we present a novel sensor, eliminating the tunable laser by combining a sensitive Mach-Zehnder interferometer with a broadband light source and an on-chip spectral...

Optical fibers possess many advantages such as small size, light weight and immunity to electro-magnetic interference that meet the sensing requirements to a large extent. In this investigation, a Mach-Zehnder interferometric optical fiber sensor is used to measure the dynamic strain of a vibrating cantilever beam. A 3 × 3 coupler is employed to demodulate the phase shift of the Mach-Zehnder in...

Here, we experimentally demonstrate interaction-free measurements with electrons using a novel electron Mach-Zehnder interferometer. The flexible two-grating interferometer is constructed in conventional transmission microscope and achieves high contrast discrete output detectors, tunable alignment independently movable beam splitters, scanning capabilities for imaging. With this path-separated...

Interferometers are widely used as sensors in precision measurement. Compared with a conventional Mach–Zehnder interferometer, the sensitivity of correlation-enhanced nonlinear interferometer can break standard quantum limit. Phase plays significant role enhanced performance. In this paper, we review improvement phase estimation technologies interferometers, including SU(1,1) and SU(1,1)-SU(2) ...

Fiber optic interferometers to sense various physical parameters including temperature, strain, pressure, and refractive index have been widely investigated. They can be categorized into four types: Fabry-Perot, Mach-Zehnder, Michelson, and Sagnac. In this paper, each type of interferometric sensor is reviewed in terms of operating principles, fabrication methods, and application fields. Some s...

We propose and analyse simple deterministic algorithms that can be used to construct machines that have primitive learning capabilities. We demonstrate that locally connected networks of these machines can be used to perform blind classification on an event-by-event basis, without storing the information of the individual events. We also demonstrate that properly designed networks of these mach...

We demonstrate a Linearized Ring Assisted Mach-Zehnder Interferometer (L-RAMZI) modulator in a miniature silicon device. We measure a record high degree of linearization for a silicon device, with a Spurious Free Dynamic Range (SFDR) of 106dB/Hz²/³ at 1GHz, and 99dB/Hz²/³ at 10GHz.

We describe in detail the first experimental test that distinguishes between an event-based corpuscular model of the interaction of photons with matter and quantum mechanics. The test looks at the interference that results as a single photon passes through a Mach-Zehnder interferometer. The experimental results, obtained with a low-noise single-photon source, agree with the predictions of stand...

We present a detailed theoretical investigation of the coherence properties of beam splitters and Mach-Zehnder interferometers for guided neutral atoms. We show that such a setup permits coherent wave packet splitting and leads to the appearance of interference fringes for both single-mode and thermal input states, evidencing thus the robustness of the interferometer.