Michael A Hamilton

US Patent:

7894418, Feb 22, 2011

Filed:

Aug 13, 2003

Appl. No.:

10/641334

Inventors:

William P. Krug - Bellevue WA, US
Harold Hager - Bellevue WA, US
Michael C. Hamilton - Redmond WA, US
Axel Scherer - Laguna Beach CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

H04B 10/00
G02B 6/26

US Classification:

370351, 370907, 385 32, 385 39

Abstract:

The present invention provides a mixed analog and digital chip-scale reconfigurable WDM network. The network suitably includes a router that enables rapidly configurable wavelength selective routers of fiber optic data. The router suitably incorporates photonic wavelength selective optical add/drop filters and multiplexers.

US Patent:

20120251107, Oct 4, 2012

Filed:

Feb 20, 2011

Appl. No.:

13/031227

Inventors:

William P. Krug - Bellevue WA, US
Harold Hager - Bellevue WA, US
Michael C. Hamilton - Redmond WA, US
Axel Scherer - Laguna Beach CA, US

International Classification:

H04J 14/02

US Classification:

398 49

Abstract:

The present invention provides a mixed analog and digital chip-scale reconfigurable WDM network. The network suitably includes a router that enables rapidly configurable wavelength selective routers of fiber optic data. The router suitably incorporates photonic wavelength selective optical add/drop filters and multiplexers.

US Patent:

50103466, Apr 23, 1991

Filed:

Oct 27, 1989

Appl. No.:

7/427730

Inventors:

Michael C. Hamilton - Redmond WA
John A. Bell - Redmond WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

H03M 100

US Classification:

341137

Abstract:

An electro-optical analog-to-digital converter having an enhanced effective sample rate. Several embodiments of the electro-optical analog-to-digital converter (10, 100, 150, and 200) are described, each involving either space-division demultiplexing, time-division demultiplexing, or wavelength-division demultiplexing to increase the effective sample rate at which an analog signal provided by a source (36) can be converted to a digital signal using electrical analog-to-digital converters (66). A plurality of light pulses having a constant amplitude are modulated in response to the analog signal and demultiplexed using one of the three different techniques, so that the analog signal is sampled at successive points in time, varying the intensity of light pulses passing through each modulator channel (32, 104). In the space-division demultiplexing approach, light pulses produced by a mode-locked diode laser (12) are split into a plurality of channels and delayed by different time intervals so that the replicated pulses are spaced apart in time prior to being modulated by passage through a modulator array (32). The demultiplexed and modulated light pulses are input to a plurality of photodetectors (56) amplified by a plurality of amplifiers (60 ), and input to a plurality of electrical analog-to-digital converters (64).