Results 31 to 40 of about 27,564 (284)

Optical Field Transmission Analysis of an All-Fiber Signal Combiner With a Dumbbell Shape

open access: yesIEEE Photonics Journal, 2022
In this paper, the optical field transmission characteristics of an all-fiber signal combiner with a dumbbell shape and its application in laser beam combining are analyzed theoretically. Based on the three-layer waveguide model, the mode characteristics
Xuanfeng Zhou
doaj   +1 more source

Erbium-implanted high-Q silica toroidal microcavity laser on a silicon chip [PDF]

open access: yes, 2004
Lasing from an erbium-doped high-Q silica toroidal microcavity coupled to a tapered optical fiber is demonstrated and analyzed. Average erbium ion concentrations were in the range 0.009–0.09 at.
Kalkman, Jeroen   +5 more
core   +1 more source

Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber

open access: yesAPL Photonics, 2022
We build a 3D printing spiral conical tapered gold tip directly on the end face of an optical fiber as an efficient fluorescence enhancement device via the two-photon polymerization direct laser writing technology and magnetron sputtering technique.
Li Long   +3 more
doaj   +1 more source

Efficient fiber-optical interface for nanophotonic devices [PDF]

open access: yes, 2014
We demonstrate a method for efficient coupling of guided light from a single mode optical fiber to nanophotonic devices. Our approach makes use of single-sided conical tapered optical fibers that are evanescently coupled over the last ~10 um to a ...
de Leon, N. P.   +6 more
core   +2 more sources

Numerical modelling on stimulated Brillouin scattering characterization for Graphene-clad tapered silica fiber

open access: yesEPJ Web of Conferences, 2017
This paper presents finite numerical modelling on the cross-sectional region of tapered single mode fiber and graphene-clad tapered fiber. Surface acoustic wave propagation across the tapered surface region on tapered single mode fiber has a high ...
Lee Hui Jing   +2 more
doaj   +1 more source

Observation of thermal feedback on the optical coupling noise of a microsphere attached to a low-spring-constant cantilever [PDF]

open access: yes, 2012
A silica microsphere on a low-spring-constant cantilever (pendulum) is fabricated and evanescently coupled to a tapered optical fiber. The motion of the pendulum is detected as variations in the transmitted laser power through the tapered fiber.
Nic Chormaic, Síle   +2 more
core   +1 more source

Novel Microfiber Sensor and Its Biosensing Application for Detection of hCG Based on a Singlemode-Tapered Hollow Core-Singlemode Fiber Structure [PDF]

open access: yes, 2020
A novel microfiber sensor is proposed and demonstrated based on a singlemode-tapered hollow core -singlemode (STHS) fiber structure. Experimentally a STHS with taper waist diameter of 26.5 μm has been fabricated and RI sensitivity of 816, 1601.86, and ...
Chen, Ling   +11 more
core   +2 more sources

A fiber-diffraction interferometer using a coherent fiber optic taper [PDF]

open access: yesMeasurement Science and Technology, 2010
We present a fiber-diffraction interferometer using a coherent fiber optic taper for optical testing in an uncontrolled environment. We use a coherent fiber optic taper and a single-mode fiber having thermally-expanded core. Part of the measurement wave coming from a test target is condensed through a fiber optic taper and spatially filtered from a ...
Kihm, Hagyong, Lee, Yun-Woo
openaire   +2 more sources

3D Printing Technology for Tapered Optical Fiber Protection With Gas Sensing Possibilities

open access: yesPhotonic Sensors, 2020
We present a new procedure for protecting micro-optical fibers (tapered fibers) by using the 3-dimension (3D) printing technology. A standard single-mode optical fiber was tapered down to the diameter of 1 µm and embedded in a polymeric matrix obtained ...
Kaleb Roncatti de Souza   +4 more
doaj   +1 more source

Sensing Performance of Modified Single Mode Optical Fiber Coated With Nanomaterials-Based Ammonia Sensors Operated in the C-Band

open access: yesIEEE Access, 2019
An etched tapered single mode optical fiber (SMF) coated with polyaniline (PANI) nanofibers is developed to detect ammonia (NH3) in low concentrations. The SMF is etched with hydrofluoric acid and subsequently tapered using a glass processing workstation.
Husam Abduldaem Mohammed   +6 more
doaj   +1 more source

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