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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 8340150 | High-power, phase-locked, laser arrays High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve mutually coherent operation of all the emitters in a laser array, and coh... | 12/25/2012 |
| 7949030 | High-power, phased-locked, laser arrays High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve mutually coherent operation of all the emitters in a laser array, and coh... | 05/24/2011 |
| 7443895 | Modular diode laser assembly An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individua... | 10/28/2008 |
| 7436423 | Apparatus and method of making a grayscale photo mask and an optical grayscale element An apparatus and method for making a grayscale photo mask and a three-dimensional grayscale diffractive optical element operate as follows. A grayscale photo mask is obtained by exposing a laser direct write (LDW) glass material to laser beam radiation from a first ... | 10/14/2008 |
| 7436868 | Modular diode laser assembly An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individua... | 10/14/2008 |
| 7420996 | Modular diode laser assembly An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individua... | 09/02/2008 |
| 7386018 | Mode-locked laser and optical multi-carrier source using same A mode-locked laser serves as a light source for stabilizing the frequency of each optical carrier and generates high-quality optical multi-carrier. The mode-locked laser is equipped with a master laser for generating master laser light; a mode-locked laser section ... | 06/10/2008 |
| 7382814 | Semiconductor laser device and method of manufacturing the same A semiconductor laser diode comprises: an n-type GaAs substrate; and a first laser diode structure having a first n-type cladding layer, a first active layer including a quantum well layer, a first p-type cladding layer on the first active layer, a p-type signal lay... | 06/03/2008 |
| 7349456 | Gain-coupled distributed quantum cascade laser Purely gain-coupled diffraction gratings may be realized for use in QCLs and other edge emitting lasers that lack a typical p-n junction. The periodic, typically heavily n-doped regions of doped diffraction gratings are replaced with p-type regions having significan... | 03/25/2008 |
| 7310358 | Semiconductor lasers Lasers, such as in laser structures, can include two or more semiconductor structures that are substantially identical or that include the same semiconductor material and have substantially the same geometry, such as in closely spaced dual-spot two-beam or quad-spot... | 12/18/2007 |
| 7233725 | 1×N fanout waveguide photodetector A 1×N fanout waveguide detector is disclosed. The detector includes a multiple-mode interference (MMI) cavity with input and output ends. A single-mode waveguide is optically coupled to the input end of the MMI cavity so that the optical power in the guided mode is... | 06/19/2007 |
| 7203401 | Multiple wavelength optical source A planar optical waveguide is formed having sets of locking diffractive elements and means for routing optical signals. Lasers are positioned to launch signals into the planar waveguide that are successively incident on elements of the locking diffractive element se... | 04/10/2007 |
| 7184451 | Continuously tunable coupled opto-electronic oscillators having balanced opto-electronic filters Devices and techniques for achieving continuous tuning of coupled opto-electronic oscillators with signal filtering in RF or microwave frequencies by optical filtering via two optical resonators in two separate optical paths. ... | 02/27/2007 |
| 7142571 | Stack-type diode laser device Two thin-clad laser diodes are disposed to form a stack-type diode laser device. The diodes emit two beams that are substantially parallel and in proximity such that they share many fiberoptic systems designed for a single beam. The diodes are coupled by leaky waves... | 11/28/2006 |
| 7139300 | Wide-stripe single-mode diode-laser A wide-stripe diode-laser includes a lower cladding region, a lower waveguide region, an active region, an upper waveguide region, and an upper cladding region all comprising semiconductor layers epitaxially grown on a semiconductor substrate. An elongated rectangul... | 11/21/2006 |
| 7127129 | Method and apparatus for phase shifting an optical beam in an optical device An apparatus and method for high speed phase modulation of optical beam with reduced optical loss. In one embodiment, an apparatus includes a first region of an optical waveguide disposed in semiconductor material. The first region has a first conductivity type. The... | 10/24/2006 |
| 5274657 | Phase lock type semiconductor laser A phase lock type semiconductor laser comprising: an array type semiconductor laser main body which includes a plurality of line-shaped active layers having wave guides disposed in parallel with each other, these active layers having waveguide modes optic... | 12/28/1993 |
| 5086430 | Phase-locked array of reflectivity-modulated surface-emitting lasers A method of fabricating an array of vertical-cavity, surface-emitting lasers that allows the lasers to be phase-locked and the resulting device. The growth of the laterally unpatterned epitaxial vertical-cavity structure includes an upper mirror which is ... | 02/04/1992 |
| 5058121 | Coupling structures for a phase-locked laser array Improved coupling structures for an index-guided laser array utilize passive transparent waveguides to improve coupling and phase-lock the array.... | 10/15/1991 |
| 5050180 | Phase-locked arrays of coupled X-junctions An array of semiconductor laser diodes having parallel waveguide elements, of which each adjacent pair is coupled together by an X-shaped waveguide junction having a connecting waveguide in which lateral modes are formed as a result of merging of the pair... | 09/17/1991 |
| 4860298 | Phased-locked array of semiconductor lasers using closely spaced antiguides A semiconductor laser diode array in which the lasing elements are formed as parallel negative-index waveguides, to provide operation at higher powers and in one of two stable array modes. Lasing in interelement regions, between the lasing elements, is su... | 08/22/1989 |
| 4831629 | Incoherent, optically coupled laser arrays with increased spectral width An optically uncoupled laser array is modified at its current confinement geometry to introduce nonuniformity in effective optical cavity width and/or length among the different lasers comprising the laser array. An array laser comprising a plurality of s... | 05/16/1989 |
| 4831630 | Phased-locked window lasers A laser in which the central portion is provided with current pumping means consisting of an array of current confining stripe contacts to provide a multiple emitter active layer and the end sections of the laser are provided with transparent waveguides. ... | 05/16/1989 |
| 4827482 | Phase-locked semiconductor laser arrays A method and apparatus for phase-locking semiconductor laser arrays is described wherein individual light waves propagating in adjacent waveguides are phase-locked by intercoupling the waveguides in a specific manner. The waveguides are intercoupled in an... | 05/02/1989 |
| 4803691 | Lateral superradiance suppressing diode laser bar A diode laser bar producing a linear array of laser beams without lateral superradiance. The laser bar has a double-heterostructure or quantum well structure. Etched channels in the substrate create lateral corrugations in the subsequently deposited layer... | 02/07/1989 |
| 4796269 | Two-dimensional phase-locked surface emitting semiconductor laser array A coherent, two-dimensional, phase-locked, surface emitting semiconductor laser array in a monolithic wafer is disclosed. Active regions of diode laser-striped semiconductor material are focused ion beam (FIB) micromachined to form transversely disposed c... | 01/03/1989 |
| 4791650 | Phased-array semiconductor laser apparatus A phased-array semiconductor laser having a plurality of light emitting regions aligned in a line and providing correlation of the oscillation phases between adjacent light emitting regions, and including a beam controlling system for providing the phased... | 12/13/1988 |
| 4768852 | Apparatus for optical fiber communication using travelling wave acousto-optical modulator and injection locked lasers Method and apparatus for frequency domain modulation optical fiber communication particularly useful for digital and analog signal transmission comprising, in the order recited, a plurality of parallel-connected signal input units each incorporating indiv... | 09/06/1988 |
| 4751711 | Asymmetric offset stripe laser for emission in a single lobe A phased array laser having a laterally asymmetric variation in the gain or coupling of lasing elements of the array for emission in a single far field lobe. The lasing elements are confined by internal waveguide structuring, periodically spaced current c... | 06/14/1988 |
| 4730325 | Two-dimensional phase locked semiconductor laser array A phase locked two-dimensional semiconductor laser array is disclosed that emits a unified wavefront using columns of individual lasers, each laser having a slant mirror between it and other lasers in its column. The individual lasers are all evanescently... | 03/08/1988 |
| 4723252 | Phase-locked laser array A phase-locked laser array comprises a substrate with two spaced-apart pluralities of channels extending towards different reflecting surfaces of the array. The axes of symmetry of the channels of one plurality are offset from the axes of symmetry of the ... | 02/02/1988 |
| 4722089 | Phase locked diode laser array The present invention is a semiconductor diode laser array which favors oscillation in the zero degree phase shift mode. The array comprises first and second sets of waveguides which are interdigitated in a coupling region. Energy transfer between the fir... | 01/26/1988 |
| 4719632 | Single contact tailored gain chirped arrays of diode lasers for supermode control with single-lobed farfield patterns An array of nonuniform semiconductor diode lasers with supermode control for achieving a single-lobed farfield pattern is described. This is accomplished by spatially segregating the fundamental supermode from the other supermodes, tailoring the spatial g... | 01/12/1988 |
| 4719635 | Frequency and phase locking method for laser array A system and method are described for establishing a common operating frequency and phase for the lasers in a two-dimensional array, each of which has an actual frequency which deviates from a common nominal frequency. A waveguide structure is placed in t... | 01/12/1988 |
| 4706255 | Phased array semiconductor laser with preferred emission in the fundamental supermode A phased array semiconductor lasers provides fundamental or preferred 1st supermode operation wherein laser fabrication is carried out via a single, continuous fabricating process followed by impurity induced disordering (IID). Fundamental supe... | 11/10/1987 |
| 4692925 | Phase-locked laser array A phase-locked laser array comprises a body of semiconductor material having means for defining a plurality of substantially parallel lasing zones which are spaced an effective distance apart so that the modes of the adjacent lasing zones are phase-locked... | 09/08/1987 |
| 4677629 | Means for phase locking the outputs of a surface emitting laser diode array An array of diode lasers, either a two-dimensional array of surface emitting lasers, or a linear array of stripe lasers, is phase locked by a diode laser through a hologram which focuses the output of the diode laser into a set of distinct, spatially sepa... | 06/30/1987 |
| 4661962 | Phased linear laser array A phase-locked linear laser array has an output array in which equispaced optical gain elements are formed along a semiconductor bar and a control laser array having equispaced laser elements in close coupling with the output array. The output array eleme... | 04/28/1987 |
| 4641311 | Phase-locked semiconductor laser array with integral phase shifters A phase-locked semiconductor laser array includes a plurality of channels in a surface of a substrate with lands therebetween with laser oscillation occurring in the cavity region over each of the channels. The individual oscillators are coupled by the ov... | 02/03/1987 |
| 4594719 | Phase-locked laser array having a non-uniform spacing between lasing regions A phase-locked semiconductor array wherein the lasing regions of the array are spaced an effective distance apart such that the modes of oscillation of the different lasing regions are phase-locked to one another. The center-to-center spacing between the ... | 06/10/1986 |
