Abstract: A tapered optical fiber component is provided that has an optical fiber with a cladded region. An optical core passes through the cladded region. The cladded region has a tapered extended first region drawn down in diameter to form an effective area region that has a predetermined effective area. The tapered extended first region is formed to adiabatically concentrate an optical signal for propagation through the effective area region of reduced diameter. The power density of the optical signal propagating through the effective area region is increased as an inverse function of the effective area.

Abstract: A tapered optical fiber component is provided that has an optical fiber with a cladded region. An optical core passes through the cladded region. The cladded region has a tapered extended first region drawn down in diameter to form an effective area region that has a predetermined effective area. The tapered extended first region is formed to adiabatically concentrate an optical signal for propagation through the effective area region of reduced diameter. The power density of the optical signal propagating through the effective area region is increased as an inverse function of the effective area.

Abstract: Enantiomers of (S) configuration of formula (I) ##STR1## in which R is H or methyl, with antiallergic and in particular antihistaminic activity, useful as medicinal products.

Abstract: The optical waveguide coupler device is formed on two laterally adjacent optical fibers for splitting with wavelength-flattened ratios an incident light intensity into the two fibers. Adjacent sections of the two fibers are fused together and first and second concatenated tapered portions are formed. These two tapered portions are separated by a central optical waveguide portion including two parallel branches of slightly different lengths, each capable of propagating a light signal from either tapered portion to the other. The first and second tapered portions define optical waveguide couplers presenting coupling ratios varying with optical wavelength in accordance with different curves. The different lengths of the two parallel branches of the central portion cause a shift .phi. between the phases of the optical signals propagating through these two branches. The coupling ratios of the tapered portions and the phase shift .phi. are selected to wavelength-flatten the coupling ratios of the coupler device.

Abstract: Aminoalcohols of formula: ##STR1## in which R.sub.1 is alkyl, R.sub.2 H or alkyl, R.sub.3 in particularly H, alkyl, phenylakyl, alkanoyl, phenylalkanoyl, in which N, R.sub.2 and R.sub.3 together form a heterocycle saturated with 5 to 7 chain links.Analgesic medicaments.

Abstract: A wavelength filter is integrated to a single-mode optical fiber capable of propagating a light signal and comprising a longitudinal and opaque outer jacket enveloping the fiber. This fiber is stripped of its jacket on a given length thereof to obtain a non-jacketed length of optical fiber. The so produced non-jacketed fiber length is formed with first and second concatenated biconical tapers separated from each other by a given distance and each having a given profile. By appropriately selecting the distance separating the two tapers and the given profile thereof, the filter will enable transmission of a first, predetermined wavelength of the propagated light signal while it will stop a second, predetermined wavelength of the signal. A method of integrating such a filter to a single-mode optical fiber is also proposed.

Abstract: Aminoethyl imidazole of formula: ##STR1## in which R.sub.1 is a lower alkyl, R.sub.2 is a phenyl or phenoxy radical, optionally substituted by a halogen atom or a lower alkoxy radical, R.sub.3,R.sub.4 and R.sub.5 are a hydrogen atom or a lower alkyl radical and x, y and z have the value 0 or 1, but the values of y and z cannot be the same, together with their acid addition salts with acids.Cytoprotective medicament.

Abstract: New thieno[2,3-b] pyrrole compounds of the formula: ##STR1## in which: R.sub.1 is hydrogen or lower alkyl,R.sub.2 is cyano, carboxy, COOM in which M is alkali alkaline-earth metal, ammonium mono-, di-, or tri-, (C.sub.1 -C.sub.5) alkylammonium optionally substituted by hydroxy, COOR in which R is lower alkyl, or ##STR2## in which R' and R" are hydrogen or lower alkyl; R.sub.3 is lower alkyl; andR.sub.4 is lower alkyl, phenyl, halophenyl, lower alkylphenyl, lower alkoxy-phenyl nitrophenyl and di-lower-alkylamino,and enatiomers thereof.These new compounds may be used as medicines especially in the treatment of acute and chronic pains.

Abstract: This invention relates to novel arylethanol and to process for producing the said compounds.The arylethanols of the invention have valuable pharmacological properties and find a use in human or animal therapy.

Abstract: This invention relates to thiosubstituted cyclic amino acids, to a process for their preparation and to pharmaceutical compositions containing them together with an inert non toxic pharmaceutical carrier.

Abstract: Biphenylalkylene-thiazolyl-piperazines of the formula ##STR1## wherein Ar and A are as defined herein, e.g., 1-[4-(4-phenylsulfinylbenzyl)-2-thiazolyl]piperazine, and 1-[4-(4-biphenylylmethyl)-2-thiazolyl]piperazine, and their physiologically tolerable salts are provided. These compounds are useful as medicines for the treatment of inflammation with an immunological component, and are useful as hypolipemic and hypocholesterolemic agents and to assist lowering of lipid and cholesterol content in the blood.

Abstract: This invention relates to pharmaceutical compositions containing as active ingredient an aryltrifluoroethanol, and a process for producing the same.These pharmaceutical compositions are useful for treating or alleviating pain, hyperpyretic conditions and/or inflammatory states.

Abstract: 1-methyl-4-piperidinol esters of the formula: ##STR1## in which R is 7-chloro-4-quinolyl, 7-trifluoromethyl-4-quinolyl or 8-trifluoromethyl-4-quinolyl.These compounds and physiologically tolerable acid addition salts thereof may be used as medicines especially in the treatment of inflammatory processes and painful syndroms.