Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Bengt Sahlgren"'
Publikováno v:
Journal of Lightwave Technology. 17:2371-2378
A method based on optical low coherence reflectometry for complete characterization of fiber Bragg gratings (FBG's) is presented. It is shown that the measured signal corresponds to the impulse response of the grating filter, and the measurement ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc6778f6a6592fba1c79d28a3d3e18af
https://doi.org/10.1109/50.803033
https://doi.org/10.1109/50.803033
Publikováno v:
Journal of Lightwave Technology. 15:1419-1423
We have developed and demonstrated a novel technique to manufacture very long gratings with a nearly arbitrary reflectivity profile. The technique is based upon writing a set of consecutive subgratings with interferometric control of the relative pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6141676d7ccc40e16d42045c7925d609
https://doi.org/10.1109/50.618372
https://doi.org/10.1109/50.618372
Autor:
Roger Vogt, Peter Janes, Bengt Johansson, Bengt Sahlgren, Sten Helmfrid, Wei An, Michael A. Grishin, Johan Pejnefors
Publikováno v:
2008 34th European Conference on Optical Communication.
A novel concept enabling ultra low-loss tunable ROADM is proposed and demonstrated. Wavelength selection is achieved using tilted fiber Bragg gratings in a MEMS controlled mirror cavity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea30418032713f3bb2b9c2f2aa45471b
https://doi.org/10.1109/ecoc.2008.4729402
https://doi.org/10.1109/ecoc.2008.4729402
Publikováno v:
Applied optics. 41(6)
We present a novel scheme based on sequential writing for fabrication of advanced fiber Bragg gratings. As opposed to earlier sequential methods this technique uses a cw UV laser source and allows for very precise control and repetitivity of the form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1797db261a5500174478fb696a05c83b
https://pubmed.ncbi.nlm.nih.gov/11900123
https://pubmed.ncbi.nlm.nih.gov/11900123
Autor:
Myo Myint Ohn, A. Tino Alavie, Raymond M. Measures, Raoul Stubbe, Bengt Sahlgren, Andreas Othonos, Robert Maaskant
Publikováno v:
Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation.
This work examines the effects of different manufacturing techniques of fiber optic intracore Bragg gratings on their sensing and system parameters. Specifically, we have looked at tolerance with respect to center wavelength, strain, and temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1a8be83b8e40edc2bfdfd00f3c6a18c
https://doi.org/10.1117/12.207704
https://doi.org/10.1117/12.207704
Autor:
Simon Sandgren, H. Storoy, Bengt Sahlgren, Myo Myint Ohn, Robert Maaskant, Raymond M. Measures, Shang Yuan Huang, Raoul Stubbe
Publikováno v:
Smart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation.
Light reflected from chirped fiber Bragg gratings possess both phase and amplitude information which is unique. In this paper we report for the first time the use of the relative phase to determine the strain-induced linear chirp. By measuring this i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb78a76739ff2bc8c502527f4a50b352
https://doi.org/10.1117/12.207667
https://doi.org/10.1117/12.207667
Publikováno v:
Photosensitivity and Quadratic Nonlinearity in Glass Waveguides: Fundamentals and Applications.
We have developed and demonstrated a novel technique to manufacture very long and superstructured gratings based on writing a set of consecutive subgratings with interferometric control of the relative position between the subgratings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b2d13ab6cf2d761b9a0088d2b2ce541
https://doi.org/10.1364/pqn.1995.pd.1
https://doi.org/10.1364/pqn.1995.pd.1
Publikováno v:
SPIE Proceedings.
Techniques for manufacturing of Bragg fiber gratings as well as the sensor system based on in fiber Fabry-Perot interferometers are presented.© (1994) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::497f28edcd4af001e53a0cb208bb0e82
https://doi.org/10.1117/12.195537
https://doi.org/10.1117/12.195537
Publikováno v:
Tenth International Conference on Optical Fibre Sensors.
In this paper we present an experimental evaluation of a quasi-distributed fiber-optic strain and temperature sensor system based on time division multiplexing. The system relies on an advanced dual-core fiber to which a set of Fabry-Perot interferom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90d9b4806a46826a70fb11f25febd8ae
https://doi.org/10.1117/12.185026
https://doi.org/10.1117/12.185026
Publikováno v:
Fiber Optic Sensors IV.
This paper discusses the potential use of polarisation selective phase modulators, PSPM, in interferometric fiber optical sensors. The principle of the PSPM is shortly reviewed. Two examples of the usefulness ofpolarisation selective phase modulation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5baf82a481dd919d1ddaee90fb291b0
https://doi.org/10.1117/12.20310
https://doi.org/10.1117/12.20310