Patents Assigned to Institut De Ciencies Fotoniques, Fundacio Privada
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Patent number: 8094368Abstract: A synchronously-pumped optical parametric oscillator (OPO 10) driven by the second harmonic output of a Kerr-lens-mode-locked Ti:sapphire laser (12) generates femtosecond pulses with wide tunability in the visible and ultraviolet spectrum. The OPO uses bismuth triborate, BiB3O6 (or BIBO) or a substituted form thereof, in collinear critical phase-matching as the nonlinear gain crystal (24). Using simple crystal rotation at room temperature, a continuous tuning range from 480 nm to 710 nm is achieved with a single BIBO crystal (24) and a single set of mirrors (26, 28, 30) for the OPO cavity. The OPO (10) generates up to 27 OmW of average power across the available tuning range and can deliver femtosecond pulses at a repetition rate of 76 MHz.Type: GrantFiled: May 15, 2007Date of Patent: January 10, 2012Assignees: Institut de Ciencies Fotoniques, Fundacio Privada, Institucio Catalana de Recerca I Estudis AvancatsInventors: Majid Ebrahim-Zadeh, Masood Ghotbi
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Publication number: 20110194172Abstract: An optical parametric oscillator including a nonlinear crystal pumped by a laser source and an optical resonator, including an optical interferometer, which determines a level of output coupling of the oscillator, allowing high stability, broad wavelength tuning, and output power level optimization.Type: ApplicationFiled: February 11, 2011Publication date: August 11, 2011Applicants: INSTITUT DE CIENCIES FOTONIQUES, FUNDACIO PRIVADA, INSTITUCIO CATALANA DE RECERCA I ESTUDIS AVANCATSInventors: ADOLFO ESTEBAN MARTIN, MAJID EBRAHIM-ZADEH
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Patent number: 7936461Abstract: A compact and stable interferometer is easily built only with fusion splices. The air-holes of a microstructured fiber are intentionally collapsed in the vicinity of the splices and this broadens the propagating optical mode, allowing coupling from core to cladding modes. The transmission spectrum is sinusoidal and of single frequency, indicating predominant interference between the fundamental core mode (7) and a cladding mode (6). A regular interference spectrum can be observed from 650 nm to 1600 nm with fringe visibility reaching 80%. The fringe spacing is inversely proportional to the distance between the splices. This behavior has a significant impact in optical sensing and communications and so the interferometer can be applied for strain sensing. The device comprises two splices (5) of a microstructured optical fiber (1), said splices (5) determining two regions in which the air-holes (4) are collapsed, separated a length (L) along which said two modes are excited.Type: GrantFiled: December 21, 2007Date of Patent: May 3, 2011Assignees: Institut De Ciencies Fotoniques, Fundacio Privada, Institucio Catalan De Recerca I Estudis AvancatsInventors: Agustin Joel Villatoro, Valerio Pruneri, Goncal Badenes
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Publication number: 20100265514Abstract: A compact and stable interferometer is easily built only with fusion splices. The air-holes of a microstructured fiber are intentionally collapsed in the vicinity of the splices and this broadens the propagating optical mode, allowing coupling from core to cladding modes. The transmission spectrum is sinusoidal and of single frequency, indicating predominant interference between the fundamental core mode (7) and a cladding mode (6). A regular interference spectrum can be observed from 650 nm to 1600 nm with fringe visibility reaching 80%. The fringe spacing is inversely proportional to the distance between the splices. This behaviour has a significant impact in optical sensing and communications and so the interferometer can be applied for strain sensing. The device comprises two splices (5) of a microstructured optical fiber (1), said splices (5) determining two regions in which the air-holes (4) are collapsed, separated a length (L) along which said two modes are excited.Type: ApplicationFiled: December 21, 2007Publication date: October 21, 2010Applicants: INSTITUT DE CIENCIES FOTONIQUES, FUNDACIO PRIVADA, INSTITUCIO CATALANA DE RECERCA I ESTUDIS AVANCATSInventors: Agustin Joel Villatoro, Valerio Pruneri, Goncal Badenes
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Patent number: 7696473Abstract: Method and system of optical manipulation of micrometer-sized objects, which comprises the steps of placing a pattern (2) of a certain material on a surface (1), wherein said material is capable of sustaining surface plasmons; placing a solution (4) comprising micrometer-sized objects in contact with said surface (1) and said pattern (2); applying at least one optical beam (5) at a certain wavelength and with a certain incident angle (?) to said surface (1) for certain time interval, thereby creating surface plasmons forces at said surface (1), in such a way that said micrometer-sized objects are trapped by the pattern (2) in a stable and selective way. Optical trap and use thereof as a tool for optically driven lab-on-a-chip.Type: GrantFiled: November 29, 2007Date of Patent: April 13, 2010Assignees: Institut De Ciencies Fotoniques, Fundacio Privada, Institucio Catalana De Recerca I Estudis AvancatsInventors: Romain Roger Quidant, Maurizio Righini
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Publication number: 20100060976Abstract: A synchronously-pumped optical parametric oscillator (OPO 10) driven by the second harmonic output of a Kerr-lens-mode-locked Ti:sapphire laser (12) generates femtosecond pulses with wide tunability in the visible and ultraviolet spectrum. The OPO uses bismuth triborate, BiB3O6 (or BIBO) or a substituted form thereof, in collinear critical phase-matching as the nonlinear gain crystal (24). Using simple crystal rotation at room temperature, a continuous tuning range from 480 nm to 710 nm is achieved with a single BIBO crystal (24) and a single set of mirrors (26, 28, 30) for the OPO cavity. The OPO (10) generates up to 27 OmW of average power across the available tuning range and can deliver femtosecond pulses at a repetition rate of 76 MHz.Type: ApplicationFiled: May 15, 2007Publication date: March 11, 2010Applicants: INSTITUT DE CIENCIES FOTONIQUES. FUNDACIO PRIVADA, INSTITUCIO CATALANA DE RECERCA I ESTUDIS AVANCATSInventors: Majid Ebrahim-Zadeh, Masood Ghotbi
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Publication number: 20080212179Abstract: Method and system of optical manipulation of micrometer-sized objects, which comprises the steps of placing a pattern (2) of a certain material on a surface (1), wherein said material is capable of sustaining surface plasmons; placing a solution (4) comprising micrometer-sized objects in contact with said surface (1) and said pattern (2); applying at least one optical beam (5) at a certain wavelength and with a certain incident angle (?) to said surface (1) for certain time interval, thereby creating surface plasmons forces at said surface (1), in such a way that said micrometer-sized objects are trapped by the pattern (2) in a stable and selective way. Optical trap and use thereof as a tool for optically driven lab-on-a-chip.Type: ApplicationFiled: November 29, 2007Publication date: September 4, 2008Applicants: INSTITUT DE CIENCIES FOTONIQUES, FUNDACIO PRIVADA, INSTITUCIO CATALANA DE RECERCA I ESTUDIS AVANCATSInventors: Romain Roger Quidant, Maurizio Righini