Michael P Cross

US Patent:

42708397, Jun 2, 1981

Filed:

Jan 29, 1979

Appl. No.:

6/007460

Inventors:

Michael A. Cross - Severna Park MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G02B 514

US Classification:

350 9615

Abstract:

A directional optical fiber signal tapping assembly. A light pipe rod encircles and accepts stray light rays leaving the otherwise bare outer surface of a length of optical fiber in a region following a location having a bend that induces a selected degree of outward leakage of optical signal rays in the bend following longitudinal light pipe region. Curvature of one end of the light pipe rod conducts the extracted optical signal sample to an optical detector device.

US Patent:

54264375, Jun 20, 1995

Filed:

May 9, 1991

Appl. No.:

7/697369

Inventors:

Michael A. Cross - Severna Park MD
John R. Linkowski - Alexandria VA

Assignee:

Westinghouse Electric Corporation - Pittsburg PA

International Classification:

H01Q 322

US Classification:

342372

Abstract:

An optical data distribution system, for densely packed transmitter/receiver modules, of a phased-array antenna which includes an optical source and a plurality of light bars for distributing the optical energy to the photoconductor of each respective transmitter/receiver module. Each bifurcated light bar has an entrance aperture coupled to the optical source through a star coupling and branched light distributing elements branching from the entrance aperture air gap bridging optics to direct the light from each output aperture of fiber bundles to the photodetector.

US Patent:

41673280, Sep 11, 1979

Filed:

Sep 28, 1977

Appl. No.:

5/837067

Inventors:

Michael A. Cross - Severna Park MD
Fred S. Hurt - Ellicott City MD

Assignee:

Westinghouse Electric Corp. - Pittburgh PA

International Classification:

G01C 308
G01J 102

US Classification:

356 5

Abstract:

An improved passive optical range simulator device used to test the ranging function of the optical radar ranger system by input to a coil of optical fiber having a mirror at its inner terminus that permits such coil to act as an optical delay medium. Improvement resides in inclusion of a partial mirror at the input end of the optical fiber coil to present multiple "target echo" reflections of the laser pulses back to the optical radar ranger system undergoing test.

US Patent:

46936009, Sep 15, 1987

Filed:

Oct 23, 1986

Appl. No.:

6/922797

Inventors:

Michael A. Cross - Severna Park MD
Edward W. Nichols - Reisterstown MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01J 100

US Classification:

356121

Abstract:

A system for analyzing the characteristics of a light beam is disclosed. Functionally, the system includes an optical system for collecting the light beam to be analyzed. An array of light-sensitive elements is positioned at the focal plane of the optical system. A digital system sequentially samples the output signals of the light sensors and processes the resulting data to generate signals indicative of the characteristics of the light beam.

US Patent:

47462051, May 24, 1988

Filed:

Jan 30, 1987

Appl. No.:

7/009842

Inventors:

Michael A. Cross - Severna Park MD
Edward W. Nichols - Reisterstown MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G02B 700
G02B 2710
G02B 508
G02B 510

US Classification:

350574

Abstract:

An attenuated fiducial replica of the far field pattern of a high energy laser beam is obtained by a system and method wherein a first fraction of an incident high energy beam is deflected from one reflective surface of a holey plate and the diffracted orders of the beam are transmitted from the holes to a concave reflector, which reflects diffracted orders toward an opposite reflective surface of the holey plate. A zinc selenide partially reflective member is disposed on-axis between the rear reflective surface and the concave surface for re-reflecting successive fractional portions of the reflected beam a selected number of times to attenuate the beam converging upon a focal plane from an effective focal distance greater than the physical length of the optical system.

US Patent:

47712317, Sep 13, 1988

Filed:

Nov 16, 1987

Appl. No.:

7/121015

Inventors:

Michael A. Cross - Severna Park MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01R 2316

US Classification:

324 77K

Abstract:

A microwave oscillator circuit having a voltage controlled oscillator for producing a controllable frequency microwave signal and a high overtone bulk acoustic resonator coupled to receive the signal is provided with a light source for directing a light beam onto the resonator such that the light is diffracted in response to the presence of acoustic waves produced in the resonator by the microwave signal. Diffracted and undiffracted portions of the light beam are measured and compared to provide an indication of resonance phenomena within the high overtone bulk acoustic resonator. This technique is particularly applicable to frequency agile stable local oscillators in radar equipment. Optical data extraction is completely non-invasive with respect to the microwave circuit functions, resulting in unimpaired stable local oscillator operation.

US Patent:

41533313, May 8, 1979

Filed:

May 24, 1977

Appl. No.:

5/800119

Inventors:

Michael A. Cross - Severna Park MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G02B 514

US Classification:

350 9620

Abstract:

A fiber optic interface junction assembly in which an unsheathed end portion of a floating buffer optical fiber is held in perpendicular biased abutment with an optical interface surface by a constrained terminator for such end portion and a continuous coiled portion of the buffered fiber. The interface surface may be active, as in light transmission to the abutting fiber end, or passive, as in reflection of light backwardly into the fiber at such end, according to the particular function needed to be served by the assembly. The end of the optical fiber abutting the interface surface is made square to the fiber axis by cleaving, for efficient optical coupling with such surface, and chamber means are provided for retention of index matching fluid in encirclement of such end, for added assurance of coupling efficiency and protection against contamination by light-obstructing foreign substances that may be present in the surrounding environment.

US Patent:

41892330, Feb 19, 1980

Filed:

Mar 7, 1977

Appl. No.:

5/775061

Inventors:

Fred S. Hurt - Ellicott City MD
Michael A. Cross - Severna Park MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01C 308
G01J 102

US Classification:

356 5

Abstract:

An improved passive optical range simulator device which can be used to test the ranging function of an optical radar ranger system having parallel beams leaving and entering. An adapter member provides for mechanical coupling and optical alignment of the simulator device with the ranger system. A focusing lens transforms parallel beams entering and leaving the ranger system into focused beams entering and leaving one end of a coil of optical fiber having a mirror at its opposite end to act as an optical delay medium. A primary tilted-glass-element optical attenuator limits optical energy allowed to reach the optical fiber entrance face, while defecting first surface reflection away from ranger system input. A removable attenuator assembly having oppositely-tilted flat glass elements at the fiber entrance face permits, by substitution, fine adjustment of beam attenuation. An X-Y-Z translation assembly for the fiber entrance face, together with a light source at the opposite end of the fiber, provides for proper alignment with the focused beams.