Patents by Inventor Lanny M. Laughman
Lanny M. Laughman 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: 4849719Abstract: The crystal is solid CdTe or GaAs for modulating a laser beam. The mount comprises Al.sub.2 O.sub.3 or BeO ceramic between the crystal and a U-shaped aluminum housing on three sides to provide low stray capacitance and high thermal conductivity to the cooled housing. A layer of lead between the ceramic and the housing enhances the acoustic damping of the structure. Electrodes are attached to the crystal, with lead used to enhance dissipation of acoustic energy. in contacting flexible tabs on the electrodes with terminals no pressure or stress is transmitted to the crystal, thereby eliminating a problem of stress-induced birefringence.Type: GrantFiled: August 21, 1984Date of Patent: July 18, 1989Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Ronald E. Belek, Robert J. Mongeon, Lanny M. Laughman
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Patent number: 4719640Abstract: Dual waveguide lasers which are transversely excited in parallel from a con source of radio frequency are provided with one or more channels or bores connecting the laser cavities. The dimensions and configuration of the connecting channels are chosen so that the electric field from the applied RF excitation source will be higher in the connecting channels than in either of the paralleled waveguide gas discharge cavities, or that the electron collision loss to the nearby ceramic and metallic walls will be lower in the connectiong channels than in the aforementioned waveguide cavities. The initial gas breakdown is thus made to preferentially occur in the connecting channels and thus force initiation of both laser cavities simultaneously.Type: GrantFiled: August 1, 1985Date of Patent: January 12, 1988Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Peter P. Chenausky, Lanny M. Laughman, Erroll H. Drinkwater
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Patent number: 4550410Abstract: A laser employs a Fabry-Perot etalon, coupled to an optical cavity, to control either the power or the frequency of the laser substantially independently.Type: GrantFiled: April 16, 1982Date of Patent: October 29, 1985Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Nelson N. Hoffman, Lanny M. Laughman
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Patent number: 4521109Abstract: A passively Q-switched laser system uses a common Q-switch cell to control two lasers. The first laser to turn on Q-switches the other laser.Type: GrantFiled: April 13, 1984Date of Patent: June 4, 1985Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Robert J. Mongeon, Lanny M. Laughman
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Patent number: 4498179Abstract: The intracavity modulated laser includes a main cavity and an adjacent coed cavity with a gain cell in the main cavity and an electro-optic modulator in the coupled cavity, the cavities being coupled in such a way that the energy level in the coupled cavity during laser operation is much lower than that in the main cavity, and whereby the modulator can selectively affect the polarization of energy in accordance with a voltage applied thereto to selectively couple energy out of both cavities in a desired manner.Type: GrantFiled: July 30, 1982Date of Patent: February 5, 1985Assignee: The Unites States of America as represented by the Secretary of the ArmyInventors: Robert J. Wayne, Lanny M. Laughman, Robert J. Mongeon, Peter P. Chenausky
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Patent number: 4484333Abstract: An RF discharge waveguide laser is modulated by an electro-optic modulator positioned in a second optical cavity coupled to a gain cavity containing the waveguide.Type: GrantFiled: February 12, 1982Date of Patent: November 20, 1984Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Richard A. Hart, Lanny M. Laughman, Ronald E. Belek, Robert J. Wayne
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Patent number: 4464758Abstract: A passively Q-switched laser system uses a common Q-switch cell to control two lasers. The first laser to turn on Q-switches the other laser.Type: GrantFiled: April 16, 1982Date of Patent: August 7, 1984Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Robert J. Mongeon, Lanny M. Laughman
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Patent number: 4429398Abstract: An RF-discharge waveguide laser incorporates two or more waveguides sharing a common set of discharge electrodes. The device may be used to provide two lasers operating on the same or different frequencies, or a single laser with two waveguides contributing to the power output.Type: GrantFiled: February 12, 1982Date of Patent: January 31, 1984Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Robert J. Mongeon, Erroll H. Drinkwater, Lanny M. Laughman
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Patent number: 4363126Abstract: An RF-excited gas laser is improved by the addition of an inductor in parallel with a discharge resistance Rg and capacitance C.sub.wg to form a tuned circuit having a resonance frequency such that the real part of the complex impedance of the discharge chamber is matched to the output impedance of a driving oscillator and by the use of an input circuit that compensates for the imaginary part of the discharge chamber impedance.Type: GrantFiled: December 10, 1980Date of Patent: December 7, 1982Assignee: United Technologies CorporationInventors: Peter P. Chenausky, Erroll H. Drinkwater, Lanny M. Laughman
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Patent number: 4260958Abstract: An improved electrode configuration and method for the deposition of electrical power into an electric discharge laser having a gas path transversely disposed to an optical axis and the electric field is disclosed. The electrode configuration includes a cathode, having one or more common geometry rod elements of a thoriated material disposed transverse to a gas path and a planar anode disposed opposite the cathode in a parallel relationship thereto wherein the cathode and the anode define the gas path therebetween. The electrode configuration is adapted for operation without ballast resistance in the electrical circuit and without the utilization of preionization means. The electrode configuration provides a discharge having substantially diffuse and uniform characteristics within the discharge region.Type: GrantFiled: October 30, 1978Date of Patent: April 7, 1981Assignee: United Technologies CorporationInventors: Robert J. Wayne, Lanny M. Laughman, Peter P. Chenausky, Carl J. Buczek
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Patent number: H199Abstract: A method of fabricating CO.sub.2 waveguide type lasers of the type comprising a slot formed in a broad surface of a hard ceramic material, comprising grinding the slot in a conventional surface grinding machine in two steps. The first step utilizes a coarse grinding wheel and the second a finer grinding wheel. The resultant laser cavity can produce high optical power output when provided with RF excitation.Type: GrantFiled: March 18, 1985Date of Patent: January 6, 1987Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Peter P. Chenausky, Erroll H. Drinkwater, Lanny M. Laughman