Lu Cheng

US Patent:

6544716, Apr 8, 2003

Filed:

Jun 19, 1998

Appl. No.:

09/100369

Inventors:

Roger Hajjar - Santa Clara CA
Sanjai Parthasarathi - San Jose CA
Lu Cheng - Sunnyvale CA

Assignee:

Terastor Corporation - San Jose CA

International Classification:

G11B 724

US Classification:

4302711, 4302731, 4302751, 430945, 3692755, 428694 TP, 428694 PR, 428694 DE, 428694 RL

Abstract:

An electro-optical storage system based on an optical head and a multilayer storage medium in a near-field configuration. The heat generated by absorption of a read/write beam adversely affects the interfacing between the optical head and the medium. The medium has a thermal insulation dielectric layer and/or a heat-dissipating layer to reduce thermal feedback from the medium to the optical head.

US Patent:

20150180603, Jun 25, 2015

Filed:

Dec 20, 2013

Appl. No.:

14/135632

Inventors:

- Murray Hill NJ, US
Lu Cheng - Santa Clara CA, US
Jeffrey E. Ehrlich - San Jose CA, US

Assignee:

ALCATEL-LUCENT USA INC. - Murray Hill NJ

International Classification:

H04J 14/02
H04Q 11/00
H04B 10/27

Abstract:

A configurable wavelength-selective cross-connect (WSXC) device having an array of optical ports in which at least some of the ports are configurable to operate as common ports or as plural ports. The configurable WSXC device includes a MEMS mirror array whose mirrors are tiltable in a manner that enables, e.g., reconfigurations of the configurable WSXC device that result in a change of the number of common ports therein. In one possible configuration, the configurable WSXC device can operate as 1×Mwavelength-selective switch, where M+1≦P, and P is the total number of optical ports in the array of optical ports. In another possible configuration, the configurable WSXC device can operate as a bank of n 1×Mwavelength-selective switches, where n is a positive integer greater than one, and n(M+1)≦P.