Results 1 to 10 of about 70 (69)

Tapered silicon optical fibers [PDF]

Optics Express, 2010
The tapering of silicon optical fibers is demonstrated using a fusion splicer. The silicon fibers are fabricated using a high pressure chemical deposition technique to deposit an amorphous silicon core inside a silica capillary and the tapering is performed in a separate post-process.
Healy, N., Sparks, J.R., Sazio, P.J.A., Badding, J.V., Peacock, A.C.   +4 more
openaire   +3 more sources

Observation of the acceleration of light in a tapered optical fiber

Optics Express, 2021
One of the most fascinating aspects of quantum fields in curved spacetime is the Unruh effect. The direct experimental detection of Unruh temperature has remained an elusive challenge up to now. Gradient optical waveguides manipulating the dispersion of photons are assumed to realize the great acceleration of effective particles, leading to a high ...
Ge, Hui, Sheng, Chong, Zhu, Shining, Liu, Hui   +3 more
openaire   +3 more sources

Monitoring techniques for the manufacture of tapered optical fibers [PDF]

Applied Optics, 2015
The use of a range of optical techniques to monitor the process of fabricating optical fiber tapers is investigated. Thermal imaging was used to optimize the alignment of the optical system; the transmission spectrum of the fiber was monitored to confirm that the tapers had the required optical properties and the strain induced in the fiber during ...
Mullaney, Kevin, Goncalves Correia, Ricardo, Staines, Stephen E., James, Stephen W., Tatam, Ralph P.   +4 more
openaire   +4 more sources

Optical transmittance degradation in tapered fibers

Optics Express, 2011
We investigated the cause of optical transmittance degradation in tapered fibers. Degradation commences immediately after fabrication and it eventually reduces the transmittance to almost zero. It is a major problem that limits applications of tapered fibers. We systematically investigated the effect of the dust-particle density and the humidity on the
Fujiwara, Masazumi, Toubaru, Kiyota, Takeuchi, Shigeki   +2 more
openaire   +4 more sources

Optical fiber lasers assisted by microdrilled optical fiber tapers [PDF]

Optics Letters, 2019
Ministerio de Economía y Competitividad (MINECO) (TEC 2016-76021-C2-R); European Regional Development Fund (ERDF).
R. A. Perez-Herrera, D. Pallarés-Aldeiturriaga, A. Júdez, L. Rodriguez Cobo, M. Lopez-Amo, J. M. Lopez-Higuera   +5 more
openaire   +3 more sources

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

Measurement 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

Chemical tapering of polymer optical fiber [PDF]

EPJ Web of Conferences, 2017
Les fibres optiques polymères (POF) présentent des avantages significatifs par rapport à de nombreuses applications de détection. L'élément clé dans le développement du capteur est le retrait de la gaine de la fibre. L'utilisation de solvant organique est l'une des méthodes pour créer un POF conique afin d'exposer la région centrale.
Affa Rozana Abdul Rashid, Amna Afiqah Nasution, Aisyah Hanim Suranin, Nur Athirah Mohd Taib, Wan Maisarah Mukhtar, Karsono Ahmad Dasuki, Abang Annuar Ehsan   +6 more
openaire   +2 more sources

Temperature Sensor Based on Periodically Tapered Optical Fibers [PDF]

Sensors, 2021
In this paper, the fabrication and characterization of a temperature sensor based on periodically tapered optical fibers (PTOF) are presented. The relation between the geometry of the sensors and sensing ability was investigated in order to find the relatively simple structure of a sensor.
Bartlomiej Guzowski, Mateusz Lakomski
openaire   +3 more sources

Fiber taper characterization by optical backscattering reflectometry

Optics Express, 2017
Fiber tapers provide a way to rapidly measure the spectra of many types of optical microcavities. Proper fabrication of the taper ensures that its width varies sufficiently slowly (adiabatically) along the length of the taper so as to maintain single spatial mode propagation.
Lai, Yu-Hung, Yang, Ki Youl, Suh, Myoung-Gyun, Vahala, Kerry J.   +3 more
openaire   +3 more sources

Stepwise fabrication of arbitrary fiber optic tapers

Optics Express, 2012
This work reports a modified flame-brush technique to fabricate fiber tapers with arbitrary waist profiles. The flame-brush approach is used to produce small step reductions in the fiber diameter, or step-tapers, with a constant speed flame brush sweep, while the fiber is uniformly stretched.
Alexandre, Felipe, Guilherme, Espíndola, Hypolito J, Kalinowski, José A S, Lima, Aleksander S, Paterno   +4 more
openaire   +2 more sources