Kulbir S Bhalla

63014025, Oct 9, 2001

Mar 2, 2000

9/517700

Kulbir Singh Bhalla - Red Bank NJ
Albert Maxwell Gottlieb - Maplewood NJ

Lucent Technologies, Inc. - Murray Hill NJ

G02B 626

385 16

An arrangement and a method for monitoring and controlling an optical mechanical switch, which may include one or more microelectromechanical switches. In communication using the arrangement or the method, independently of any customer signal, a modulated optical signal is generated at wavelengths, both modulation and optical, that are out-of-band with respect the wavelengths of any transmission signals that may appear. The modulated optical signal is directed toward the optical mechanical switch, and system control parameters are changed to maximize a detected signal after passage through the optical mechanical switch. Any remnants of the modulated optical signal may be removed before arriving at any customer-related terminal. Optical cross-connect switching circuits are exemplary circuits in which the invention may be applied. The modulated optical signal is inserted before or during the transmission of any transmission signal.

62850229, Sep 4, 2001

Oct 18, 1999

9/420442

Kulbir Singh Bhalla - Red Bank NJ

Lucent Technologies Inc. - Murray Hill DE

G01J 136

25022722

An optical beam switch is designed for improved serviceability by mounting two fiber optic beam deflection arrays to face the front of a rack assembly. Inside the optical beam switch, a reflecting device is located behind each of the two fiber optic beam deflection arrays and used to reflect the light beams between the two fiber optic beam deflection arrays. Front access to the two fiber optic beam deflection arrays is then readily available whether the optical beam switch is mounted horizontally or vertically in the rack assembly.

61888141, Feb 13, 2001

Aug 3, 1999

9/366372

Kulbir Singh Bhalla - Red Bank NJ

Lucent Technologies Inc. - Murray Hill NJ

G02B 624

385 15

A packaged microelectromechanical device having a housing with a plurality of ports. A bundle of a plurality of optical fibers is mounted in one of the plurality of ports by a welded or brazed flange. An array-type microelectromechanical device is mounted in another port of the housing by a welded or brazed flange and includes a plurality of elements adapted for interacting with the plurality of optical fibers, whereby information may be transmitted into the housing via one of the optical fibers and may be transferred out of the housing via another of the optical fibers. The array-type microelectromechanical device has a plurality of electrical control pins protruding outside the housing. A pair of windows in the housing provides ports for optical sensory signals for the array-type microelectromechanical device. Two conduits for providing pressurized inert gas are mounted in the housing by welded or brazed flanges.

63270595, Dec 4, 2001

Jun 17, 1998

9/098568

Kulbir S. Bhalla - Red Bank NJ
Albert M. Gottlieb - Maplewood NJ

Lucent Technologies, Inc. - Murray Hill NJ

H04B 1000

359109

An optical signal processing circuit including one or more modules. Each module performs a particular optical signal processing function such as filtering, switching, multiplexing/demultiplexing, monitoring or amplifying one or more optical signals. The modules can be combined to form a wide variety of optical signal processing circuits and systems.

62753266, Aug 14, 2001

Sep 21, 1999

9/400719

Kulbir Singh Bhalla - Red Bank NJ
Albert Maxwell Gottlieb - Maplewood NJ

Lucent Technologies Inc. - Murray Hill NJ

G02B 2608

359298

A microelectromechanical system in which, operationally independent of the movable element and the component for moving it, a microelectromechanical sensor senses the position of the movable element. The microelectromechanical sensor adjoins the movable element, at least in part, and may be a strain gage, or a gage of a capacitive, piezoelectric, piezoresistive, or pressure type, among others. The resulting signal is fed back to control the component for moving the movable element. In an array of movable elements and sensors, the signal of each sensor is specific to one movable element.