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| Number | Title | Issue Date |
| 7180652 | Mars optical modulators The specification describes an improved Moving Anti-Reflection Switch (MARS) device structure that largely eliminates charge build up on the movable membrane, and reduces stresses that cause curling of the membrane. The improved device uses a movable membrane made o... | 02/20/2007 |
| 6704130 | Electromechanical optical modulator providing stray light control In accordance with the invention, a electromechanical optical modulator comprising an optical membrane, a substrate and Fabry-Perot air gap between them is provided with an improved structure for controlling light transmitted into the substrate. Specifica... | 03/09/2004 |
| 6631246 | Wavelength division multiplexed optical communication system having tunable multi-channel dispersion compensating filters In accordance with the invention, a WDM optical communication system includes a new tunable multi-channel dispersion compensating filter having low loss, low polarization dependence and capable of compensating many channels over a large wavelength range. ... | 10/07/2003 |
| 6444491 | Composite semiconductor devices and method for manufacture thereof An integrated semiconductor device is formed from two fabricated semiconductor devices each having a substrate by placing an etch-resist on the substrate of the one semiconductor device, by bonding the conductors of one of the fabricated semiconductor dev... | 09/03/2002 |
| 6212056 | Micromachined variable capacitor First and second wafers are micromachined by standard integrated-circuit fabrication techniques to respectively make first and second component parts of a variable capacitor. A thin flexible membrane in the first wafer is integral with and mechanically su... | 04/03/2001 |
| 6066844 | Optical receiver with integrated variable attenuator An optical assembly for detecting an optical signal from a signal source in systems where the intensity of the optical signal may surpass the operational range of the optical detector being used. The optical assembly includes an optical detector for conve... | 05/23/2000 |
| 6048751 | Process for manufacture of composite semiconductor devices An integrated semiconductor device is formed from two fabricated semiconductor devices each having a substrate by placing an etch-resist on the substrate of the one semiconductor device, by bonding the conductors of one of the fabricated semiconductor dev... | 04/11/2000 |
| 6034431 | Electronic integrated circuit with optical inputs and outputs A method for designing an integrated circuit having optical inputs and outputs includes the step of selecting an integrated circuit design which includes at least one circuit cell design for processing electric signals. The circuit cell design has a prede... | 03/07/2000 |
| 5966235 | Micro-mechanical modulator having an improved membrane configuration An optical modulator that contains a flexible dielectric membrane suspended over a substrate. The flexible membrane is made of a dielectric material such as silicon nitride. In one embodiment of the invention, the flexible membrane has an optically active... | 10/12/1999 |
| 5949571 | Mars optical modulators The specification describes a double poly Mechanical Anti-Reflection Switch (MARS) device in which shorting between the lower poly metallization and the silicon substrate is prevented by providing an insulating layer on the surface of the silicon substrat... | 09/07/1999 |
| 5943158 | Micro-mechanical, anti-reflection, switched optical modulator array and fabrication method A micro-mechanical, anti-reflective, switched optical modular array that utilizes a continuous, uninterrupted modular membrane across an array of individual modulators. The individual modulators are positioned within an optical window of the device, the o... | 08/24/1999 |
| 5918794 | Solder bonding of dense arrays of microminiature contact pads Each microminiature contact pad included in a dense array of pads on an electronic component contains a relatively thick layer of solder. The layer is treated to form a relatively thin brittle protective layer on the surface of the solder. The structure i... | 07/06/1999 |
| 5796880 | Technique for modulating optical signals in optical communications In an optical transmitter, an input optical fiber delivers an optical signal to a fiber coupling modulator whose reflective surface is transformable in response to the data to be transmitted. In a first state of the modulator corresponding to a first data... | 08/18/1998 |
| 5786925 | Method and composition for arbitrary angle mirrors in substrates for use in hybrid optical systems A method for forming, and an arrangement for using arbitrary angle mirrors in substrates is disclosed. An erodible material, such as a photoresist, is applied to a substrate at a site and is exposed to radiation at that site which has a linear variation i... | 07/28/1998 |
| 5745271 | Attenuation device for wavelength multiplexed optical fiber communications An optical signal attenuation device and associated method for selectively attenuating the signal strengths of different wavelength signals contained within a multiplexed optical transmission. The attenuation device includes a diffracting element that dif... | 04/28/1998 |
| 5654819 | Micromechanical modulator A method and apparatus for modulating an optical signal, and a method for fabricating such an apparatus, are disclosed. The modulator comprises a membrane, which consists of at least three layers, and a substrate, spaced to form an air gap. The layers of ... | 08/05/1997 |
| 5647044 | Fiber waveguide package with improved alignment means The specification describes a molded plastic package for a surface normal optoelectronic device. The package is designed to passively align precisely the optoelectronic device with an optical fiber. Passive alignment is achieved by forming the optoelectro... | 07/08/1997 |
