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Optical Waveguides > Optical Fiber Waveguide With Cladding > With Graded Index Core Or Cladding With Graded Index Core Or CladdingWith Graded Index Core Or Cladding patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/15/07 - 20070263970 - Optical fiber, and optical transmission line and optical transmission system using the same Disclosed is an optical fiber suitable for an optical transmission line used in WDM system, particularly a single-mode optical fiber whose zero-dispersion wavelength is positioned in a short wavelength band (less than 1370 mm) so as to enable high-speed mass-storage signal transmission over S-C-L band (1460˜1625 nm) and whose dispersion ... 09/20/07 - 20070217753 - Plastic optical fiber and production method thereof A cylindrical outer clad section is formed by melt-extrusion molding of polyvinylidene fluoride (PVDF) having a molecular structure in which the number of defect bonds of successive CF2 units and successive CH2 units constitutes not less than 4% with respect to a total number of bonds of CF2 units and ... 09/06/07 - 20070206912 - Apparatus and method for a waveguide with an index profile manifesting a central dip for better energy extraction A method and apparatus is described that use an index-of-refraction profile having a significant central dip in refractive index (or another tailored index profile) within the core of a gain fiber or a gain waveguide on a substrate. The benefits of this central dip (more power with a given mode ... 06/07/07 - 20070127878 - Single mode optical fiber An optical transmission fiber comprises a central core having an index difference Δn1 with an outer optical cladding; a first inner cladding having an index difference Δn2 with the outer cladding; and a second buried inner cladding having an index difference Δn3 with the outer cladding of less than −3.10−3. ... 05/10/07 - 20070104435 - Polarization insensitive microbend fiber gratings and devices using the same A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP1m mode and the resonant wavelength supported by the odd/even HE2m components of the LP1m mode. Since only the TE and ... 05/10/07 - 20070104434 - Polarization insensitive microbend fiber gratings and devices using the same A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP1m mode and the resonant wavelength supported by the odd/even HE2m components of the LP1m mode. Since only the TE and ... 05/10/07 - 20070104433 - Polarization insensitive microbend fiber gratings and devices using the same A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP1m mode and the resonant wavelength supported by the odd/even HE2m components of the LP1m mode. Since only the TE and ... 05/10/07 - 20070104432 - Polarization insensitive microbend fiber gratings and devices using the same A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP1m mode and the resonant wavelength supported by the odd/even HE2m components of the LP1m mode. Since only the TE and ... 03/08/07 - 20070053641 - Optical fiber and optical device using the same There is disclosed an optical fiber wherein an absolute value of the fourth order dispersion β4 of fourth derivative β4 of propagation constant β with respect to angular frequency ω at a mean zero dispersion wavelength λ0 in an overall length is not more than 5×10−56 s4/m and wherein a ... 02/22/07 - 20070041688 - Single mode optical fibre as well as optical communication system The present invention relates to a single mode optical fibre comprising a first central region having a radius r1, a maximum refractive index value n1 and at least one second ring surrounding said first central region, which second ring has a radius r2 and a minimum refractive index value n2, ... 02/08/07 - 20070031095 - Fiber optics transmission line A graded index fiber (GIF) 3 is inserted between transmission-use single mode fibers (SMF) 2a, 2b on a fiber optics transmission line 1. The GIF 3 is so designed that its mode field diameter (MFD) gradually increases from a light entry side. The MFD exhibits a maximum value at a ... 01/18/07 - 20070014525 - Chromatic dispersion compensating optical fibre The invention relates to the field of chromatic dispersion compensating optical fibers for a wavelength multiplexing transmission network. A chromatic dispersion compensating optical fiber is provided having at least six core slices (1 to 6) and having a negative chromatic dispersion and chromatic dispersion slope. ... 01/04/07 - 20070003199 - Low attenuation optical fiber An optical waveguide fiber comprises: (a) a core with a refractive index profile having, a radius, an alpha and a relative refractive index characterized by delta% that varies along the radius; (b) at least one cladding surrounding the core; wherein the alpha is less than 2.5, peak refractive index delta ... 10/12/06 - 20060228082 - Plastic optical fibers and processes for producing them A novel optical plastic fiber comprising a core region and having a center line along a longitudinal axis of the fiber is disclosed. The refractive index of the core region increases along a direction going from a periphery portion to the center line in any plane perpendicular to the center ... 10/05/06 - 20060222307 - Optical systems utilizing optical fibers transmitting high power signal and a method of operating such systems An optical system comprises an optical fiber with gain producing core with an index of refraction n1, surrounded by at least one cladding with an index of refraction n2, said cladding including at least one index reduced area with an index of refraction n2, such that n1>n2>n2, the core propagating ... 06/29/06 - 20060140562 - Side-scattering light guides The invention relates to side-scattering light guides that generally comprise a core of transparent optically homogenous material seeded with diffuser particles. The light guide also comprises an optically transmitting sheath, having a lowerrefractive index than the core, surrounding and in contact with the sides of the core to prevent any ... 06/29/06 - 20060140561 - Single mode optical fibre as well as optical communication system The present invention relates to a single mode optical fibre comprising a first central region having a radius r1, a maximum refractive index value n1 and at least one second ring surrounding said first central region, which second ring has a radius r2 and a minimum refractive index value n2, ... 03/16/06 - 20060056786 - Optical members and compositions for producing them It is disclosed a polymerizable composition for producing an optical member for 850 nm wavelength comprising: a polymerizable monomer composition and a compound, having a different refractive index from that of the polymerizable monomer composition, whose structure has a benzene ring substituted by a substituent having a Hammett value of ... 02/09/06 - 20060029346 - Polarization insensitive microbend fiber gratings and devices using the same A microbend-induced fiber grating is formed from a section of optical fiber configured to exhibit “splitting” between the resonant wavelengths supported by the TE and TM components of the LP1m mode and the resonant wavelength supported by the odd/even HE2m components of the LP1m mode. Since only the TE and ... 01/26/06 - 20060018613 - Chromatic dispersion compensating optical fiber The invention relates to the field of single-mode chromatic dispersion compensating optical fibers for a wavelength multiplexing transmission network. A single-mode chromatic dispersion compensating optical fiber is provided having at least six core slices (1 to 6) and having a negative chromatic dispersion and chromatic dispersion slope at a central ... 01/19/06 - 20060013547 - Method for manufacturing optical waveguide, and optical waveguide made by the method A method for manufacturing an optical waveguide including a core 1 and a cladding 2 that are integrally formed is provided. The method includes a masking step of masking a monolayer film 11 containing a photobleachable material by sandwiching the monolayer film 11 between a pair of masking members 12A ... 01/12/06 - 20060008221 - Highly nonlinear optical fiber and highly nonlinear optical fiber module A highly nonlinear optical fiber includes a core, a cladding surrounding the core, and a coating covering the cladding. A bending loss at a wavelength of 1550 nanometers with a bending diameter of 20 millimeters is equal to or less than 0.01 dB/m. A nonlinear coefficient at the wavelength of ... 01/05/06 - 20060002673 - Thermally-shaped optical fiber and a method for forming the optical fiber A thermally-shaped optical fiber and a method for forming the same so as to minimize the presence of optical artifacts in the optical fiber that contributes to insertion loss. ... 01/05/06 - 20060002672 - Multimode optical fiber for high rate lan, method for manufacturing the same, and test bed thereof Disclosed is a method for manufacturing a multimode optical fiber for high data rate LAN using MCVD, which includes a deposition process for forming a clad layer and a core layer, doped with an additive for controlling a refractive index, on an inner wall of a quartz tube by injecting ... 12/29/05 - 20050286848 - Optical fibers with reduced splice loss and methods for making same An optical fiber has a core region and a first cladding region surrounding the core. The first cladding region is doped to increase the fiber's refractive index volume. A second cladding region surrounds the first cladding region. The second cladding region is doped to reduce the fiber's cutoff wavelength, offsetting ... 10/06/05 - 20050220431 - Device for canceling the wavelength dependence of the nonlinearity coefficient of microstructured fibers Since the magnitude of a nonlinear effect depends on the nonlinearity coefficient of the microstructured fiber and the intensity of pump light, either the nonlinearity coefficient or the intensity of pump light are adjusted. The nonlinearity coefficient is modified by introducing a nonlinear refractive index profile that has the inverse ... 09/29/05 - 20050213909 - Chromatic dispersion-compensating optical fibre in the s-band using a higher order mode The invention relates to an chromatic dispersion-compensating optical fibre in the S-band, for use in compensating for the chromatic dispersion of either a standard SMF optical fibre or of an NZ-DSF optical fibre, carrying an optical signal in the spectral band in use, which is the S-band extending from 1460 ... 09/29/05 - 20050213908 - Codoped al-yb waveguide and method of manufacturing same A waveguide configuration comprising a core, at least one cladding and a buffer. The core includes Al and Yb. The respective amount Yb in the divalent state is such that any indirect and direct losses of Yb in the divalent state are exceeded by the gain attributable to Yb in ... 09/22/05 - 20050207714 - Plastic optical fiber A plastic optical fiber low in attenuation in a high order mode and small in mode dispersion, is presented. The plastic optical fiber comprises at least a core and a clad surrounding the core, characterized in that the core has a refractive index which gradually decreases from the core center ... 09/15/05 - 20050201701 - Optical collimator for monomode fiber having a graded-index fiber section, corresponding monomode fiber with extended core and method for making same The invention relates to a monomode fibre optical collimator, comprising at least one segment of mode expansion fibre, and at least one segment of expansion holding fibre comprising at least a first segment of graded index multimode fibre. The invention also relates to a monomode fibre comprising at its end ... 08/25/05 - 20050185906 - Non-zero dispersion shifted optical fiber An optical waveguide fiber including a central core region extending radially outward from the centerline and having a non-negative relative refractive index percent profile. The optical fiber exhibits an effective area of greater than about 60 μm2 at a wavelength of about 1550 rm, a dispersion slope of less than ... 08/18/05 - 20050180709 - Optical fiber having reduced residual stress discontinuity An optical fiber having reduced residual stress discontinuity is disclosed. The optical fiber includes a core which is an optical transmission medium and a clad for surrounding the core. The residual stress discontinuity at an interface between the core and the clad is 20.0 MPa or less, which is represented ... 08/18/05 - 20050180708 - Method for preparing plastic optical fiber preform The present invention relates to a method for preparing a GI (graded index) plastic optical fiber preform having a radial refractive index gradient, the refractive index increasing gradually from the outer periphery of the preform toward the center thereof, comprising inserting a 1st plastic tube (inside diameter: d1i, outside diameter: ... 08/11/05 - 20050175303 - Optical fiber for metro network An optical fiber for an optical network is disclosed. The optical fiber includes a core having a core region having a first refractive index N1, and a refractive index depressed region surrounding the core region and having a second refractive index N2 that is lower than the first refractive index. ... 07/07/05 - 20050147369 - Core of an optical patch cord and an optical signal transmission system using the same and a method for preparing the same The present invention discloses a core of an optical patch cord comprising a first end with a refraction index varying in a continuous manner along the radial direction, a second end including a blocking region at a radial center thereof, and a graded region extending from the first end to ... 06/23/05 - 20050135760 - High sbs threshold nzds optical fiber A non-zero dispersion shifted optical waveguide fiber having a high threshold for stimulated Brillouin scattering is disclosed. ... ### FreshPatents.com Support |