Results 31 to 40 of about 478,180 (342)

Simultaneous Measurement of Shape and Temperature in the Substrate-Attaching-Fibers Sensing System

open access: yesIEEE Photonics Journal, 2017
We design a dual-parameter sensor which can simultaneously measure the shape and temperature in the substrate-attaching-fibers sensing system. Two kinds of fibers with different diameter are attached on a shape memory alloy wire substrate with an angle ...
Shiyuan Zhao   +4 more
doaj   +1 more source

High energy green nanosecond and picosecond pulse delivery through a negative curvature fiber for precision micro-machining [PDF]

open access: yes, 2015
In this paper we present an anti-resonant guiding, low-loss Negative Curvature Fiber (NCF) for the efficient delivery of high energy short (ns) and ultrashort (ps) pulsed laser light in the green spectral region.
Carter, Richard M.   +5 more
core   +1 more source

Ultrabroadband dispersive radiation by spatiotemporal oscillation of multimode waves [PDF]

open access: yes, 2015
Despite the abundance and importance of three-dimensional systems, relatively little progress has been made on spatiotemporal nonlinear optical waves compared to time-only or space-only systems.
Couairon   +4 more
core   +2 more sources

Hardware-Efficient Phase Estimation for Digital Coherent Transmission With Star Constellation QAM

open access: yesIEEE Photonics Journal, 2010
In order to build optical transmission systems for 100 Gb/s and above on a single wavelength division multiplexing channel, transition from quadrature phase-shift keying (QPSK) to higher quadrature amplitude modulation (QAM) formats seems to be ...
Sebastian Hoffmann   +6 more
doaj   +1 more source

Toward a compact fibered squeezing parametric source

open access: yes, 2018
In this work, we investigate three different compact fibered systems generating vacuum squeezing that involve optical cavities limited by the end surface of a fiber and by a curved mirror and containing a thin parametric crystal.
Brieussel, Alexandre   +4 more
core   +1 more source

Asymmetrical Fiber Mach–Zehnder Interferometer for Simultaneous Measurement of Axial Strain and Temperature

open access: yesIEEE Photonics Journal, 2010
An asymmetrical fiber Mach-Zehnder interferometer (aFMZI) consisting of a fiber taper and a lateral-shifted junction is proposed and demonstrated to realize simultaneous measurement of axial strain and temperature.
Ping Lu, Qiying Chen
doaj   +1 more source

Wavefront sensing based on fiber coupling in adaptive fiber optics collimator array.

open access: yesOptics Express, 2019
A new method of wavefront sensing based on fiber coupling in the adaptive fiber optics collimator (AFOC) array has been proposed. The scheme and the recovery process of this sensor are introduced.
Feng Li   +4 more
semanticscholar   +1 more source

On-Line Process Monitoring for Aero-Space Components Using Different Technologies of Fiber Optic Sensors During Liquid Resin Infusion (LRI) Process

open access: yesEngineering Proceedings
The FLASH-COMP project aims to introduce novel inspection and monitoring technologies to develop a digital solution to predict defects during manufacturing, aiming to reach a zero-waste approach in composites manufacturing. Particularly, it’s studied the
Cristian Builes Cárdenas   +5 more
doaj   +1 more source

Parallel Transport Frame for Fiber Shape Sensing

open access: yesIEEE Photonics Journal, 2018
This paper reports a reconstruction method to determine a 3-D space curve from the distributed strain by using the parallel transport frame. Parallel transport frame can efficiently eliminate the singularities and discontinuous point which appear in ...
Jiwen Cui   +3 more
doaj   +1 more source

Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method

open access: yesIEEE Photonics Journal, 2017
A laser-reduction technique is investigated to fabricate a novel long period fiber grating (LPFG), whose period is a section of graphene oxide (GO) and reduced graphene oxide (rGO) films on a side polished fiber.
Liheng Chen   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy