000131380 001__ 131380
000131380 005__ 20180913055040.0
000131380 037__ $$aCONF
000131380 245__ $$aFormation and spectral characterisation of Bragg gratings in standard single-mode optical fibers
000131380 269__ $$a1993
000131380 260__ $$c1993
000131380 336__ $$aConference Papers
000131380 490__ $$aMitt. AGEN (Switzerland)
000131380 500__ $$aEcole Polytech. Federale Lausanne, Switzerland
000131380 500__ $$a4506424
000131380 500__ $$aspectral characterisation
000131380 500__ $$aBragg gratings
000131380 500__ $$asingle-mode optical fibers
000131380 500__ $$amonomode optical fibers
000131380 500__ $$ainterference pattern
000131380 500__ $$aindex modulation amplitude
000131380 500__ $$areflectivity
000131380 500__ $$abandwidths
000131380 500__ $$amaximal index change
000131380 520__ $$aPermanent Bragg gratings in monomode optical fibers are obtained by irradiation through an interference pattern of an ultraviolet laser. The main parameters of such gratings, in particular the index modulation amplitude and their length, are precisely determined by a fine adjustment between the measured reflectivity and a theoretical curve. Gratings have been formed in a standard monomode telecommunication fiber, with reflectivities above 90% and with bandwidths on the order of 1 to 3 nm. Their reflectivity spectra are symmetric and comparable with theoretical curves. Index modulations up to 1.2 10-3 have been determined, which is more than one order of magnitude greater than earlier reported. A precise knowledge of the maximal index change allows one to know the formation possibilities of gratings with regard to reflectivity and bandwidth
000131380 6531_ $$a[OFD]
000131380 6531_ $$adiffraction gratings
000131380 6531_ $$alight interference
000131380 6531_ $$aoptical fibres
000131380 6531_ $$areflectivity
000131380 700__ $$aFonjallaz, P. Y.
000131380 700__ $$0240486$$g105668$$aLimberger, H. G.
000131380 700__ $$aSalathe, R. P.
000131380 909C0 $$xU10346$$0252008$$pLOA
000131380 909C0 $$xU12587$$0252499$$pSCI-STI-HL
000131380 909CO $$pconf$$pSTI$$ooai:infoscience.tind.io:131380
000131380 937__ $$aLOA-CONF-1993-001
000131380 973__ $$sPUBLISHED$$aEPFL
000131380 980__ $$aCONF