Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Nezih Belhadj"'
Publikováno v:
Fiber Lasers XVIII: Technology and Systems.
We are reporting a monolithic all-fiber highly multimode laser reaching up to 4.03 kW stable output power. The phosphosilicate glass matrix used as a gain medium is highly multimode optical fiber. This allows to enhance dramatically the Stimulated Ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94ea38d78453b9aa3640424db859318e
https://doi.org/10.1117/12.2577830
https://doi.org/10.1117/12.2577830
Publikováno v:
IEEE Photonics Technology Letters. 24:1033-1035
An accurate control of the apodization profile is still an issue for integrated Bragg grating filters fabricated in silicon-on-insulator because of the high modal confinement of these waveguides. In this letter, we present two fabrication-friendly ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a0413c4dd0c32400f1d0a7f039a7489
https://doi.org/10.1109/lpt.2012.2194278
https://doi.org/10.1109/lpt.2012.2194278
Publikováno v:
Scopus-Elsevier
A fiber-based approach for reconfigurable and single-shot chirped microwave pulse compression is proposed and demonstrated based on a time-spectrum convolution system. Different nanosecond-long, GHz-bandwidth linearly chirped microwave pulses are suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::197702ee01bedb7561f4d85afd7be874
http://hdl.handle.net/11382/498580
http://hdl.handle.net/11382/498580
Publikováno v:
8th International Conference on High-capacity Optical Networks and Emerging Technologies.
Optical fiber communication is not as secure as generally perceived. There are a number of known methods of extracting or injecting information into a fiber link, while avoiding detection. Few incidents have been reported as a successfully tapped fib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::369504c3f761af01792f4f5617b69cd7
https://doi.org/10.1109/honet.2011.6149809
https://doi.org/10.1109/honet.2011.6149809
This paper discusses the importance of stress-induced contributions to the photo-induced birefringence observed in fiber Bragg gratings. Optical tomography measurements are performed in exposed and unexposed fibers to extract the stress profiles indu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91288f444bd7bcf7af1a61389e6a59db
https://hdl.handle.net/10453/8276
https://hdl.handle.net/10453/8276
Autor:
Nezih, Belhadj
L'omniprésence de la biréfringence photoinduite dans les réseaux optiques photoinscrits, présente un défi important pour l'ingéniosité du procédé de fabrication de ce type de composants. Des études précédentes ont identifié trois contrib
Externí odkaz:
http://hdl.handle.net/20.500.11794/20271
Publikováno v:
2006 IEEE LEOS Annual Meeting Conference Proceedings.
Birefringence and eigen-axes orientation are computed in UV-illuminated fibers with a high-order isoparametric vectorial finite element method. Form birefringence is included in the index profile of weakly birefringent fibers and various UV-beam orie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6df3f86c2c066f167f7bc1faa8451dd4
https://doi.org/10.1109/leos.2006.279133
https://doi.org/10.1109/leos.2006.279133
Autor:
Kokou B. Dossou, Nezih Belhadj, Marie Fontaine, Sophie LaRochelle, Suzane Lacroix, Xavier Daxhelet
Publikováno v:
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides.
We compare the effective indices and the birefringence of a fiber with an asymmetric transverse profile, calculated by three numerical methods, one vectorial and two scalar formulations with polarization corrections.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fe8e177403447007143923fa1c3b44e
https://doi.org/10.1364/bgpp.2003.md20
https://doi.org/10.1364/bgpp.2003.md20
Publikováno v:
Optics Letters. 38:1419
We experimentally demonstrate a superluminal space-to-time mapping process in grating-assisted (GA) codirectional coupling devices, particularly fiber long period gratings (LPGs). Through this process, the grating complex (amplitude and phase) apodiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::192045495f2f0ceb8f3cc1601d4b891d
https://doi.org/10.1364/ol.38.001419
https://doi.org/10.1364/ol.38.001419
Publikováno v:
Optics Express. 12:1720
The effective index change and form birefringence are calculated in UV-exposed fibers using a high-order vectorial finite element method. The birefringence is compared in optical fibers with and without photosensitive inner cladding. © 2004 Optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f92d165a9403f2287c19a7791b461a79
https://doi.org/10.1364/opex.12.001720
https://doi.org/10.1364/opex.12.001720