Patents by Inventor Stephanie Blanchandin
Stephanie Blanchandin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8014647Abstract: The invention relates to an optical fiber comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said doping element; and an outer cladding (26) which surrounds the core. The invention is characterized in that the doping element is erbium (Er) and in that the enhancing element is selected from among antimony (Sb), bismuth (Bi) and a combination of antimony (Sb) and bismuth (Bi). According to the invention, one such fiber is characterized in that the size of the nanoparticles is variable and is between 1 and 500 nanometers inclusive, and preferably greater than 20 nm.Type: GrantFiled: August 27, 2010Date of Patent: September 6, 2011Assignee: Alcatel LucentInventors: Stéphanie Blanchandin, Christine Collet, Alain Pastouret, Sophie De Monredon, Jean-Pierre Jolivet, Corinne Chaneac
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Patent number: 8000577Abstract: The invention relates to an optical fiber comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said doping element; and an outer cladding (26) which surrounds the core. The invention is characterised in that the doping element is erbium (Er) and in that the enhancing element is selected from among antimony (Sb), bismuth (Bi) and a combination of antimony (Sb) and bismuth (Bi). According to the invention, one such fiber is characterised in that the size of the nanoparticles is variable and is between 1 and 500 nanometers inclusive, and preferably greater than 20 nm.Type: GrantFiled: August 17, 2006Date of Patent: August 16, 2011Assignee: Alcatel LucentInventors: Stéphanie Blanchandin, Christine Collet, Alain Pastouret, Sophie De Monredon, Jean-Pierre Jolivet, Corinne Chaneac
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Patent number: 7869686Abstract: The invention consists in an amplifying optical fiber comprising a core containing a dopant and a cladding, wherein said core comprises a monomode core intended to propagate an optical signal, quantum dots of a semiconductor material being disposed in or near said monomode core, and a multimode core surrounding the monomode core, intended to receive a pumping signal.Type: GrantFiled: November 6, 2006Date of Patent: January 11, 2011Assignee: AlcatelInventors: Christian Simonneau, Laurent Gasca, Stéphanie Blanchandin, Dominique Bayart
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Publication number: 20100329628Abstract: The invention relates to an optical fibre comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said doping element; and an outer cladding (26) which surrounds the core. The invention is characterised in that the doping element is erbium (Er) and in that the enhancing element is selected from among antimony (Sb), bismuth (Bi) and a combination of antimony (Sb) and bismuth (Bi). According to the invention, one such fibre is characterised in that the size of the nanoparticles is variable and is between 1 and 500 nanometres inclusive, and preferably greater than 20 nm.Type: ApplicationFiled: August 27, 2010Publication date: December 30, 2010Inventors: Stéphanie Blanchandin, Christine Collet, Alain Pastouret, Sophie De Monredon, Jean-Pierre Jolivet, Corinne Chaneac
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Patent number: 7813614Abstract: The invention consists in an amplifying optical fiber comprising a core containing a dopant and a cladding, wherein said core comprises a monomode core intended to propagate an optical signal, quantum dots of a semiconductor material being disposed in or near said monomode core, and a multimode core surrounding the monomode core, intended to receive a pumping signal.Type: GrantFiled: October 5, 2009Date of Patent: October 12, 2010Assignee: AlcatelInventors: Christian Simonneau, Laurent Gasca, Stephanie Blanchandin, Dominique Bayart
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Patent number: 7657142Abstract: The invention concerns a method for making an optical fiber (18) including the following steps: producing a preform (10) containing nanoparticles provided with an active element including at least one recess (14) proximate at least part of the nanoparticles; fiber drawing of the preform (10) by introducing a non-oxidizing gas in the recess (14), thereby limiting the risks of oxidizing the nanoparticles of the preform (10). The preform (10) designed to the manufacture of an optical fiber (18) by the inventive method comprises nanoparticles provided with an active element in a doped zone (12) and at least one recess (14) proximate the doped zone (12).Type: GrantFiled: August 28, 2006Date of Patent: February 2, 2010Assignee: Alcatel LucentInventors: Laurent Gasca, Stéphanie Blanchandin, Alain Pastouret, Christian Simonneau
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Publication number: 20100020388Abstract: The invention consists in an amplifying optical fiber comprising a core containing a dopant and a cladding, wherein said core comprises a monomode core intended to propagate an optical signal, quantum dots of a semiconductor material being disposed in or near said monomode core, and a multimode core surrounding the monomode core, intended to receive a pumping signal.Type: ApplicationFiled: October 5, 2009Publication date: January 28, 2010Applicant: AlcatelInventors: Christian SIMONNEAU, Laurent Gasca, Stephanie Blanchandin, Dominique Bayart
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Publication number: 20090116798Abstract: The invention relates to an optical fibre comprising a gain medium which is equipped with: a core (22) which is formed from a transparent material and nanoparticles (24) comprising a doping element and at least one element for enhancing the use of said doping element; and an outer cladding (26) which surrounds the core. The invention is characterised in that the doping element is erbium (Er) and in that the enhancing element is selected from among antimony (Sb), bismuth (Bi) and a combination of antimony (Sb) and bismuth (Bi). According to the invention, one such fibre is characterised in that the size of the nanoparticles is variable and is between 1 and 500 nanometres inclusive, and preferably greater than 20 nm.Type: ApplicationFiled: August 17, 2006Publication date: May 7, 2009Applicant: Alcatel LucentInventors: Stephanie Blanchandin, Christine Collet, Alain Pastouret, Sophie De Monredon, Jean-Pierre Jolivet, Corinne Chaneac
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Publication number: 20080285930Abstract: The invention concerns a method for making an optical fiber (18) including the following steps: producing a preform (10) containing nanoparticles provided with an active element including at least one recess (14) proximate at least part of the nanoparticles; fiber drawing of the preform (10) by introducing a non-oxidizing gas in the recess (14), thereby limiting the risks of oxidizing the nanoparticles of the preform (10). The preform (10) designed to the manufacture of an optical fiber (18) by the inventive method comprises nanoparticles provided with an active element in a doped zone (12) and at least one recess (14) proximate the doped zone (12).Type: ApplicationFiled: August 28, 2006Publication date: November 20, 2008Applicant: Alcatel LucentInventors: Laurent Gasca, Stephanie Blanchandin, Alain Pastouret, Christian Simonneau
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Patent number: 7355788Abstract: A Raman amplification active optical fiber comprises a core containing silica oxide (SiO2), lithium oxide (Li2O), germanium oxide (GeO2), and barium oxide (BaO). The core contains 30 to 90 molar percent of SiO2 and less than 50 molar percent of the combination of LiO2, GeO2, and BaO. Application of the fiber to a multiwavelength Raman fiber laser.Type: GrantFiled: July 27, 2004Date of Patent: April 8, 2008Assignee: AlcatelInventors: Ekaterina Bourova, Stephanie Blanchandin, Florence Leplingard
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Publication number: 20070127877Abstract: The invention consists in an amplifying optical fiber comprising a core containing a dopant and a cladding, wherein said core comprises a monomode core intended to propagate an optical signal, quantum dots of a semiconductor material being disposed in or near said monomode core, and a multimode core surrounding the monomode core, intended to receive a pumping signal.Type: ApplicationFiled: November 6, 2006Publication date: June 7, 2007Inventors: Christian SIMONNEAU, Laurent Gasca, Stephanie Blanchandin, Dominique Bayart
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Patent number: 7008892Abstract: An optical fiber has a fiber core with a higher refractive index and a cladding surrounding the core with a lower refractive index. The fiber core is made of a multi-component oxide glass composition which consists of a glass-forming component and two Raman-active components. The glass former is SiO2 and the Raman active components are of Li2O and Nb2O5. The concentration of the glass former is between 30 and 90 mol % and of the Raman active components is up to 50 mol % in total. The composition may further include a glass-modifying component of alkaline such as Li2O, Na2O, K2O, Rb2O, Cs2O or earth-alkaline such as BeO, MgO, CaO, SrO, BaO in a concentration of up to 40 mol %.Type: GrantFiled: July 11, 2003Date of Patent: March 7, 2006Assignee: AlcatelInventors: Ekaterina Bourova, Stephanie Blanchandin, Jérome Garapon
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Publication number: 20050024713Abstract: A Raman amplification active optical fiber comprises a core containing silica oxide (SiO2), lithium oxide (Li2O), germanium oxide (GeO2), and barium oxide (BaO). The core contains 30 to 90 molar percent of SiO2 and less than 50 molar percent of the combination of LiO2, GeO2, and BaO. Application of the fiber to a multiwavelength Raman fiber laser.Type: ApplicationFiled: July 27, 2004Publication date: February 3, 2005Inventors: Ekaterina Bourova, Stephanie Blanchandin, Florence Leplingard
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Publication number: 20040053768Abstract: An optical fiber has a fiber core with a higher refractive index and a cladding surrounding the core with a lower refractive index. The fiber core is made of a multi-component oxide glass composition which consists of a glass-forming component and two Raman-active components. The glass former is SiO2 and the Raman active components are of Li2O and Nb2O5. The concentration of the glass former is between 30 and 90 mol % and of the Raman active components is up to 50 mol % in total. The composition may further include a glass-modifying component of alkaline such as Li2O, Na2O, K2O, Rb2O, Cs2O or earth-alkaline such as BeO, MgO, CaO, SrO, BaO in a concentration of up to 40 mol %.Type: ApplicationFiled: July 11, 2003Publication date: March 18, 2004Applicant: ALCATELInventors: Ekaterina Bourova, Stephanie Blanchandin, Jerome Garapon
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Publication number: 20020197049Abstract: An optical device is proposed having a rare earth doped glass composition consisting essentially of.Type: ApplicationFiled: June 21, 2002Publication date: December 26, 2002Applicant: ALCATELInventors: Pascal Baniel, Stephanie Blanchandin, Fabien Roy, Laurent Bigot, Ismahane Didi-Alaoui, Anne-Marie Jurdyc