Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Pierre Laperle"'
Autor:
Martin Bolduc, Michel Poirier, Gregory Chauve, Hassane Oulachgar, Tom Tiwald, Pierre Laperle, David Gay, Patrick Beaupre, Myriam Methot, Melanie Leclerc, Sebastien Deshaies, Martin Briand, Jean Bouchard, Pierre Galarneau
Publikováno v:
MRS Advances. 1:651-657
Nanocrystalline cellulose (NCC) solid films obtained from evaporated aqueous heterogeneous mixtures retain the self-assembled chiral nematic order formed in the suspension. These semi-translucent films are iridescent and reflect or transmit circularl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f2eafe61c7b03eae4b112bd6629b154
https://doi.org/10.1557/adv.2015.45
https://doi.org/10.1557/adv.2015.45
Autor:
Mathieu Boivin, Louis Desbiens, Pierre Laperle, Claude Pare, Bruno Labranche, Yves Taillon, Vincent Roy
Publikováno v:
Fiber Lasers XV: Technology and Systems.
Nonlinear compression for generation of high energy ultrashort pulses using an Yb-doped large mode area tapered fiber is reported. Single-stage amplifier gain larger than 43 dB is achieved, with energy of seed pulses (35 ps, 200 kHz) boosted up to 50
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cdf9102c79167bcd65ed8b11b9e5068
https://doi.org/10.1117/12.2290104
https://doi.org/10.1117/12.2290104
Autor:
Yves Taillon, Louis Desbiens, M. Boivin, Pierre Laperle, Bruno Labranche, Claude Paré, Vincent Roy
Publikováno v:
SPIE Proceedings.
A polarization-maintaining Yb-doped large mode area fiber with depressed-index inner cladding layer and confinement of rare-earth dopants has been drawn as a long tapered fiber. The larger end features a core/clad diameter of 56/400 μm and core NA ~
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::272a66e54e928447c0cf0497972873a0
https://doi.org/10.1117/12.2250864
https://doi.org/10.1117/12.2250864
Publikováno v:
SPIE Proceedings.
Large mode area fibers with depressed-index cladding layer and confinement of rare-earth dopants can provide effective suppression of high-order modes. A polarization-maintaining Yb-doped double-clad fiber with 35/250 μm core/clad diameter has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::891bacee5e460fc119bd30d8d648a278
https://doi.org/10.1117/12.2212770
https://doi.org/10.1117/12.2212770
Publikováno v:
Optics Communications. 175:221-226
We report on the stable operation of a 2500-ppm thulium-doped ZBLAN upconversion fiber laser at 481 nm and the related problem of photodegradation associated with the formation of color centers. The output coupling is observed to affect the level of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6148a50eeaf73b3365af8efd66a8bc26
https://doi.org/10.1016/s0030-4018(99)00772-5
https://doi.org/10.1016/s0030-4018(99)00772-5
Publikováno v:
Journal of Non-Crystalline Solids. 239:116-120
We have investigated the dynamics of color center formation (darkening) in a 1000 ppm thulium-doped ZBLAN (ZrF 4 -BaF 2 .-LaF 3 -AlF 3 -NaF) optical fiber by ultraviolet (285, 300, 351, 364 nm) and infrared (1112 nm) exposures. We observe that color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5138bf43eb68fa7b6a5420ad3c9619cc
https://doi.org/10.1016/s0022-3093(98)00756-x
https://doi.org/10.1016/s0022-3093(98)00756-x
Publikováno v:
Optics Communications. 148:144-150
We report experimental results on the coupling properties of a directional coupler made of a single-mode fiber and a multimode planar waveguide. It is shown that such a device is behaving like a band-reject as well as a band-pass filter depending on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93f8ce58b4ba898bf85c093ade65de2c
https://doi.org/10.1016/s0030-4018(97)00609-3
https://doi.org/10.1016/s0030-4018(97)00609-3
Autor:
Yves Taillon, André Croteau, Claude Paré, Pierre Laperle, Mathieu Drolet, Antoine Proulx, Steeve Morency, Huimin Zheng
Publikováno v:
SPIE Proceedings.
The fabrication of a polarization-maintaining version of a large-mode-area multi-clad fiber design with high Yb concentrations and a robust output beam represents a significant challenge due to the high risk of cracking of the doped silica multi-clad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8db614c9d18b4ff1b030f44cde3a33e
https://doi.org/10.1117/12.867095
https://doi.org/10.1117/12.867095
Autor:
Pierre Laperle, Claude Paré, Yves Taillon, Huimin Zheng, Louis Desbiens, Antoine Proulx, Mathieu Drolet
Publikováno v:
SPIE Proceedings.
A 225-µJ polarization maintaining ytterbium-doped large-mode-a rea multiclad fiber was design ed and fabricated with an effective mode area of 450 µm 2 and a photodarkening maximum excess loss of ~1 dB/m at 1064 nm. The fiber index profile is based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71ec0f8623a07e979d9095310886c5d6
https://doi.org/10.1117/12.872898
https://doi.org/10.1117/12.872898
Publikováno v:
SPIE Proceedings.
Based on a depressed-clad index profile design, a PM Yb-doped large mode area (LMA) fiber with an effective mode area of 450 μm 2 was designed and fabricated. The fiber was used to amplify 10-ns pulses at 1064 nm with a repetition rate of 100 kHz, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::738482572d7e0cbd1463cdd3f7110c0e
https://doi.org/10.1117/12.842583
https://doi.org/10.1117/12.842583