Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Y. ALLAIN"'
Autor:
H. Poignant, S. Boj, Marc Douay, F. Alard, E. Delevaque, D. Pureur, Y. Aubry, J.-Y. Allain, Muriel Saccoccio
Publikováno v:
Journal de Physique III. 5:225-236
In this letter, we report on the realisation of fluoride fibre lasers. Mirrors were directly deposited on fibre endfaces. Using this technique, we have fabricated stable fibre lasers. Then, we present our recent results on fluoride fibre lasers
Publikováno v:
Journal of Non-Crystalline Solids. 161:222-226
Trivalent holmium in ZBLAN can be easily pumped with an argon laser operating around 0.48 μm. Its lasing transitions at 0.55, 0.75, 1.2 and 2.0 μm are now well-known. However, excited-state absorption at pump and signal wavelengths from the 5I7 and
Publikováno v:
Journal of Non-Crystalline Solids. 161:270-273
CW tunable laser emission between the 2 F 5 2 and 2 F 7 2 levels of trivalent ytterbium has been studied in single mode ZBLAN fibres. Differential quantum efficiency of more than 60%, 100 mW output power and tunability range between 975 and 1055 nm w
Autor:
J. Y. Allain
Publikováno v:
Applied optics. 18(3)
Experimental results are presented, obtained with dye lasers using different configurations of bielliptical cavities. This development was carried out for an atmospheric sounding program, which requires pulsed tunable lasers of high average power cov
Publikováno v:
Optics letters. 19(23)
A room-temperature blue upconversion laser operating at 455 nm is demonstrated in a Tm(3+) -doped fluorozirconate fiber when the laser is excited simultaneously at 645 and 1064 nm, permitting as much as 3 mW of cw blue laser output.
Publikováno v:
Journal of Nuclear Materials. 184:230-234
Publikováno v:
IEEE Journal of Quantum Electronics. 27:1910-1921
The two-stage process of the transient buildup of emission in Nd/sup 4+/-doped fiber lasers is described both experimentally and theoretically. After switching on the pump, spontaneous emission increases first until the gain becomes sufficient to com
Publikováno v:
Presse medicale (Paris, France : 1983). 27(3)
The development of internet and more generally of telematics has given rise to many practical consequences in medicine. Whatever the context (communication, medias, teaching, imaging or data transmissions), Internet appears as a familiar tool in many
Publikováno v:
The Journal of urology. 149(3)
A total of 109 survivors of curative therapy for nonseminomatous germ cell testicular tumor was interviewed an average of 9 years after treatment to assess long-term physical, emotional and sexual sequelae. An age-matched group of healthy men were in
Publikováno v:
Optical Amplifiers and Their Applications.