Patents by Inventor Rudolf Feodor Kazarinov
Rudolf Feodor Kazarinov 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).
-
Patent number: 6795472Abstract: A laser includes an optical cavity resonator having first and second reflectors and an active region interposed between the reflectors. The second reflector includes a resonant optical reflector having an optical gain medium.Type: GrantFiled: February 5, 2002Date of Patent: September 21, 2004Assignee: Lucent Technologies Inc.Inventors: Yuliya Anatolyevna Akulova, Rudolf Feodor Kazarinov
-
Patent number: 6775437Abstract: A folded optical waveguide structure comprises a substrate supporting a waveguide slab. An array of laterally spaced grating waveguides extends from the slab along the substrate to propagate optical signals to and from a reflective surface of a mirror member at an end face of the substrate. A layer of index matching material is located between the ends of the waveguides and the reflective surface. A thermally conductive, e.g. copper, body is interposed between the mirror member and the substrate such that dimensional changes of the thermally conductive body resulting from changes in ambient temperature of the grating array waveguides, tilt the mirror member against the substrate, away from or toward the end face of the substrate.Type: GrantFiled: March 6, 2002Date of Patent: August 10, 2004Assignee: Applied WDM Inc.Inventors: Rudolf Feodor Kazarinov, Nikolai Michael Stelmakh
-
Patent number: 6618537Abstract: Methods of fabricating solid state optical waveguide structures comprising a doped silicon dioxide core layer sandwiched between lower and upper doped silicon dioxide cladding layers on a silicon substrate. The core and upper cladding layers are deposited using a plasma enhanced CVD process. The core layer is patterned to define one or more waveguide cores. The lower cladding layer is preferably also deposited using a plasma enhanced CVD process but alternatively may be formed by thermal oxidation.Type: GrantFiled: January 14, 2002Date of Patent: September 9, 2003Assignee: Applied WDM, Inc.Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Publication number: 20030147441Abstract: A laser includes an optical cavity resonator having first and second reflectors and an active region interposed between the reflectors. The second reflector includes a resonant optical reflector having an optical gain medium.Type: ApplicationFiled: February 5, 2002Publication date: August 7, 2003Inventors: Yuliya Anatolyevna Akulova, Rudolf Feodor Kazarinov
-
Publication number: 20030133682Abstract: Methods of fabricating solid state optical waveguide structures comprising a doped silicon dioxide core layer sandwiched between lower and upper doped silicon dioxide cladding layers on a silicon substrate. The core and upper cladding layers are deposited using a plasma enhanced CVD process. The core layer is patterned to define one or more waveguide cores. The lower cladding layer is preferably also deposited using a plasma enhanced CVD process but alternatively may be formed by thermal oxidation.Type: ApplicationFiled: January 14, 2002Publication date: July 17, 2003Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Patent number: 6580850Abstract: An optical waveguide mode transformer has a substrate supporting a high refractive index core layer surrounded by lower refractive index cladding. The core layer includes a wide input waveguide section to accept a multimode, including a fundamental mode, light input. The input waveguide section is coupled to a narrow output waveguide section by a tapered region having a taper length enabling adiabatic transfer of the fundamental mode of the multimode light from the wide input waveguide section to the output waveguide section while suppressing(stripping) other modes of the multimode light input. The narrow output waveguide section supports a single mode light output comprising said fundamental mode. The core layer is contoured to include a localized upstanding ridge intermediate opposite lateral sides of the core layer.Type: GrantFiled: November 24, 2000Date of Patent: June 17, 2003Assignee: Applied WDM, Inc.Inventors: Rudolf Feodor Kazarinov, Nikolai Michael Stelmakh, Henryk Temkin
-
Patent number: 6580864Abstract: An optical waveguide structure comprising an annealed phosphorous doped silicon dioxide core surrounded by silicon dioxide cladding layers on a silicon substrate. The refractive index of the core exceeds the refractive index of the cladding to enable waveguiding of optical signals in the core. The upper cladding layer, and in one embodiment also the lower cladding, comprises high boron and phosphorous doped silicon dioxide, suitably doped with greater than about 9% of boron and with about 2.5% to 3.5% phosphorous to obtain a thermal coefficient of expansion approximating that of the silicon substrate. In an alternative embodiment, the lower cladding layer comprises thermally grown silicon dioxide, preferably including an upstanding pedestal on which the waveguide core extends.Type: GrantFiled: January 14, 2002Date of Patent: June 17, 2003Assignee: Applied WDM, Inc.Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Patent number: 6553165Abstract: An optical waveguide device comprising a free space region, suitably provided by a slab waveguide, having optical signal ports for coupling to input and output waveguide sections and an optical waveguide grating including an array of grating waveguides coupling the free space region to a reflector surface to provide a folded structure. Dielectric waveguide structures are preferred. The grating includes tapered optical waveguide sections laterally spaced and optically isolated from each other which extend from the free space region, with the grating waveguides continuing as extensions of the tapered waveguide sections. Each of the grating waveguides differs in length from a neighboring grating waveguide by a constant increment, preferably an optical path length increment.Type: GrantFiled: July 14, 2000Date of Patent: April 22, 2003Assignee: Applied WDM, Inc.Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Patent number: 6493487Abstract: An optical waveguide device comprising a free space region, suitably provided by a slab waveguide, having optical signal ports for coupling to input and output waveguide sections and an optical waveguide grating including an array of grating waveguides coupling the free space region to a reflector surface to provide a folded structure. Dielectric waveguide structures are preferred. The grating includes tapered optical waveguide sections laterally spaced and optically isolated from each other which extend from the free space region, with the grating waveguides continuing as extensions of the tapered waveguide sections. Each of the grating waveguides differs in length from a neighboring grating waveguide by a constant increment, preferably an optical path length increment.Type: GrantFiled: July 14, 2000Date of Patent: December 10, 2002Assignee: Applied WDM, Inc.Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Patent number: 6434303Abstract: An optical waveguide device comprising a free space region, suitably provided by a slab waveguide, having optical signal ports for coupling to input and output waveguide sections and an optical waveguide grating including an array of grating waveguides coupling the free space region to a reflector surface to provide a folded structure. Dielectric waveguide structures are preferred. The grating includes tapered optical waveguide sections laterally spaced and optically isolated from each other which extend from the free space region, with the grating waveguides continuing as extensions of the tapered waveguide sections. Each of the grating waveguides differs in length from a neighboring grating waveguide by a constant increment, preferably an optical path length increment.Type: GrantFiled: July 14, 2000Date of Patent: August 13, 2002Assignee: Applied WDM Inc.Inventors: Henryk Temkin, Rudolf Feodor Kazarinov
-
Publication number: 20020097961Abstract: A folded optical waveguide structure comprises a substrate supporting a waveguide slab. An array of laterally spaced grating waveguides extends from the slab along the substrate to propagate optical signals to and from a reflective surface of a mirror member at an end face of the substrate. A layer of index matching material is located between the ends of the waveguides and the reflective surface. A thermally conductive, e.g. copper, body is interposed between the mirror member and the substrate such that dimensional changes of the thermally conductive body resulting from changes in ambient temperature of the grating array waveguides, tilt the mirror member against the substrate, away from or toward the end face of the substrate.Type: ApplicationFiled: March 6, 2002Publication date: July 25, 2002Inventors: Rudolf Feodor Kazarinov, Nikolai Michael Stelmakh
-
Patent number: 6400736Abstract: The invention is an apparatus including a semiconductor laser device emitting light at least at a certain wavelength, and at least two reflectors external to the laser device and positioned to reflect the light to stabilize the wavelength.Type: GrantFiled: October 5, 1999Date of Patent: June 4, 2002Assignee: Agere Systems Guardian Corp.Inventors: Thomas Patrick Aherne, Charles Howard Henry, Rudolf Feodor Kazarinov, Carl E Soccolich
-
Patent number: 6289151Abstract: An all-pass optical filter which reduces the dispersion of optical pulses transmitted therethrough is disclosed. The all-pass optical filter reduces the dispersion of optical pulses by applying a desired phase response to optical pulses transmitted therethrough. The all-pass optical filter also has a frequency independent amplitude response. The all-pass optical filter has a structure which includes at least one feedback path, a splitter/combiner, an input port, and an output port.Type: GrantFiled: October 30, 1998Date of Patent: September 11, 2001Assignee: Lucent Technologies Inc.Inventors: Rudolf Feodor Kazarinov, Gadi Lenz, Christi Kay Madsen, Ronald Edward Scotti
-
Patent number: 6091756Abstract: The invention is a laser assembly for reducing distortion ripple. The assembly includes a spherical lens which has a portion of its surface made optically asymmetric to prevent multiple reflections of scattered light within the lens.Type: GrantFiled: December 23, 1997Date of Patent: July 18, 2000Assignee: Lucent Technologies Inc.Inventors: Richard Bendicks Bylsma, Mindaugas Fernand Dautartas, Carl Edward Gaebe, Rudolf Feodor Kazarinov, Julie Sheridan-Eng, Gleb E. Shtengel
-
Patent number: 6064527Abstract: The invention is a laser assembly with reduced distortion ripple. The assembly includes a spherical lens for collimating light emitted from the laser. The lens is made of a material which attenuates scattered light which is the source of ripple without appreciably affecting the main beam.Type: GrantFiled: August 26, 1998Date of Patent: May 16, 2000Assignee: Lucent Technologies Inc.Inventors: Richard Bendicks Bylsma, Mindaugas Fernand Dautartas, Carl Edward Gaebe, Rudolf Feodor Kazarinov, Lisa Ann Peterson, Julie Sheridan-Eng, Gleb E. Shtengel