Results 71 to 80 of about 66,598 (211)

Grover–Sagnac interferometer

open access: yesJournal of the Optical Society of America A
We demonstrate a nontraditional design of the Sagnac interferometer by replacing the commonly used beam splitter with a linear-optical Grover multiport. This substitution creates a pole at the origin of the device parameter space, with an associated resonance in the output intensity.
Christopher R. Schwarze   +4 more
openaire   +3 more sources

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

open access: yes, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
LEVI, FILIPPO   +13 more
core   +1 more source

Investigation of the Few‐Layer Black Phosphorus Degradation by the Photonic Measurements

open access: yesAdvanced Materials Interfaces, 2023
Few‐layer black phosphorus (FLBP) is a 2D material that gains worldwide interest for its possible applications, mainly in electronics and optoelectronics.
Małgorzata Szczerska   +5 more
doaj   +1 more source

Reconfigurable beams with arbitrary polarization and shape distributions at a given plane [PDF]

open access: yes, 2013
Methods for generating beams with arbitrary polarization based on the use of liquid crystal displays have recently attracted interest from a wide range of sources.
Carnicer González, Arturo   +3 more
core   +1 more source

Lensmeter using a lateral shearing interferometer [PDF]

open access: yes, 2012
The use of a laser shear interferometer for checking the collimation condition within a lensmeter is proposed. The interferometer consist of a wedged glass plate which produces a shear along the ortogonal direction to the wedge; when the fringes at the ...
Fermín Salomón Granados Agustín   +4 more
core   +2 more sources

High-Extinction Photonic Filters by Cascaded Mach–Zehnder Interferometer-Coupled Resonators

open access: yesPhotonics
In this study, we demonstrate high-extinction stop-band photonic filters based on Mach–Zehnder interferometer (MZI)-coupled silicon nitride (Si3N4) resonators fabricated using I-line lithography technology.
Hao-Zhong Chen   +2 more
doaj   +1 more source

Calibration methods for a dual-wavelength interferometer system [PDF]

open access: yes, 2018
Multiple wavelength interferometry has long been considered an option for the measurement of large aspheric slope departures. In particular, a synthetic wavelength offers a variety of approaches by which large phase excursions can be unwrapped.
Tangari Larrategui, Martin   +7 more
core   +1 more source

A compact interferometer insensitive to scanning speed variations [PDF]

open access: yes, 2013
A compact moving optical-wedge interferometer (CMOWI) is presented. This device consists of a moving optical wedge (MOW), a fixed optical wedge (FOW), a fixed compensating plate, and a beam-splitting cube.
Zhao, Baochang   +2 more
core   +1 more source

Error Analysis and Suppression of Rectangular-Pulse Binary Phase Modulation Technology in an Interferometric Fiber-Optic Sensor

open access: yesSensors
In the field of interferometric fiber-optic sensing, the phase-shifting technique is well known as a highly efficient method for retrieving the phase signal from the interference light intensity.
Qian Cheng   +6 more
doaj   +1 more source

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