John M Kalinowski

US Patent:

20020186917, Dec 12, 2002

Filed:

Jun 12, 2001

Appl. No.:

09/879847

Inventors:

John Kalinowski - Flemington NJ, US

International Classification:

G02B006/35
G02B006/293
H04J014/02

US Classification:

385/018000, 385/024000, 359/128000

Abstract:

An optical switch for use in a WDM communication system is provided which includes a tiltable mirror assembly having a mirror and an actuator for orienting the mirror. At least one receiver is also provided for receiving an optical beam reflected from the tiltable mirror. A controller, which drives the actuator, includes an alignment mechanism having a common mode rejection arrangement, responsive to a signal received from the receiver, for adjusting the actuator to orient the tiltable mirror so that an optical beam reflected therefrom is coupled to the receiver with a particular efficiency.

US Patent:

51988160, Mar 30, 1993

Filed:

Sep 6, 1991

Appl. No.:

7/754916

Inventors:

John T. Kalinowski - Flemington NJ
Augustyn Waczynski - Trenton NJ

Assignee:

EG&G, Inc. - Wellesley MA

International Classification:

H03M 106
H03M 122
H04N 5335

US Classification:

341137

Abstract:

A general purpose programmable optical analyzer employs a nonlinear gain at the input stage of an analog to digital converter in order to limit the number of bits used to resolve shot noise.