Steven T Sanders

US Patent:

6356574, Mar 12, 2002

Filed:

Jan 29, 1999

Appl. No.:

09/240361

Inventors:

Richard R. Craig - Victoria, CA
Robert L G. Waarts - Fremont CA
David F. Welch - Menlo Park CA
John G. Endriz - Belmont CA
Dirk J. Kuizenga - Sunnyvale CA
Steven Sanders - Palo Alto CA

Assignee:

SDL, Inc. - San Jose CA

International Classification:

H01S 30933

US Classification:

372 75, 372 50

Abstract:

A multistage optical amplifier pumping system with built-in redundant reliability for lightwave communication system provides plural levels of redundancy. A first level of redundancy deals with redundancy in the form of plural primary laser diode sources for pumping a single fiber laser pump source. A second level of redundancy deals with redundancy of a plurality of fiber laser pump sources for pumping a plurality of serially connected injection signal fiber amplifiers forming the multistage amplifier system. If one of fiber pump sources should fail, increased pumping power is available from the remaining fiber pump sources via their respectively connected amplifier stages. A third level of redundancy deals with redundancy in the employment of multiple single mode laser emitters on the same chip or bar sufficiently segmented and/or electrical isolated so as not to interfere with operation of or cause failure to adjacent or neighboring emitters on the same chip or bar.

US Patent:

6477295, Nov 5, 2002

Filed:

Jan 20, 2000

Appl. No.:

09/488166

Inventors:

Robert J. Lang - Pleasanton CA
Robert G. Waarts - Fremont CA
Ian J. Booth - Sooke, CA
David M. Giltner - Fremont CA
Steven Sanders - Palo Alto CA

Assignee:

JDS Uniphase Corporation - San Jose CA

International Classification:

G02B 626

US Classification:

385 31, 385 27, 385127, 372 6

Abstract:

Apparatus for coupling light into a fiber, such as a double clad fiber (DCF) having a core having a refractive index n , surrounded by an inner cladding having refractive index n which is surrounded by an outer cladding having a refractive index n , where n n n. An optical coupler medium, referred to as a Fiber Space Division Multiplexor or FSDM, is formed on an exposed portion of the fiber inner cladding at a position along the length of the fiber without interfering with the continuity of its core and provides at, at least one position, the imaging of light external of the fiber into the inner cladding interface and its waveguiding with the inner cladding of the fiber. The FSDM coupler comprises an optical material in optical contact or integrated with the inner cladding and having a refractive index substantially equal to n. The coupler medium may also be employed with a fiber having no core and where the inner cladding would function as a multimode core. Also, disclosed are formed reflectors for reflecting back residual, unabsorbed pump light backward into the DCF inner cladding for absorption within the core doped with a rare earth active material.

US Patent:

6735913, May 18, 2004

Filed:

Aug 1, 2002

Appl. No.:

10/211912

Inventors:

Steven H. Sanders - Granite Bay CA
William L. Millhone - Loomis CA

Assignee:

Sanders Associates Geostructural Engineering, Inc. - Granite Bay CA

International Classification:

E04B 104

US Classification:

52284, 52270, 52286, 52437, 52505, 52521, 52604, 52606, 52780, 52764, 256 19

Abstract:

A masonry block wall system is disclosed comprising a plurality of piers positioned at predetermined intervals with a pilaster mounted on each of the piers. The pilasters are formed by vertically stacked masonry blocks that are attached to the pier by a reinforcing rod extending upwardly from the pier through a vertical mortarless void in the blocks. A plurality of courses of masonry blocks form block wall panels, each of the blocks in the panels having horizontal mortarless voids therein, the horizontal and vertical joints between adjacent courses being interlocking and mortarless. Selected courses of masonry blocks have a horizontal reinforcing rod attached to each block in the course without mortar or grout.

US Patent:

7793476, Sep 14, 2010

Filed:

Oct 12, 2007

Appl. No.:

11/974497

Inventors:

Steven H. Sanders - Granite Bay CA, US
Thomas R. Sell - El Dorado Hills CA, US
Andrew J. Cowan - Martinez CA, US

International Classification:

E04B 1/41
E04B 1/38

US Classification:

52296, 52 922, 52713, 527451, 256 6514

Abstract:

A non-top-supported column attachment bracket assembly is provided, that includes a generally W-shaped bracket to provide a strong connection between non-top supported wood fences and masonry walls such as concrete masonry unit (CMU) walls or cast in place (CIP) walls. The W-shape provides a matrix inside the hardening structure of the wall, while simultaneously engaging the horizontal reinforcing bar of the wall. The W-anchor further includes a cover plate disposed onto the bracket. The W-shaped bracket can be installed to the upper portion of the wall just prior to grouting or during grouting, where the bracket can be pressed onto the horizontal bar before the grout has hardened. After the hardening structure is cured, fencing posts are attached to a column connection portion of the W-anchor that extends from the top of the wall.

US Patent:

8217334, Jul 10, 2012

Filed:

Dec 24, 2008

Appl. No.:

12/317521

Inventors:

Robert J. Lang - Alamo CA, US
Jahja I. Trisnadi - Cupertino CA, US
Steven Sanders - Los Altos CA, US

Assignee:

Cypress Semiconductor Corporation - San Jose CA

International Classification:

G06M 7/00
G06F 3/033

US Classification:

250221, 345166

Abstract:

An optical navigation sensor (ONS) is provided having a spatial frequency filter to transmit radiation at selected spatial frequencies while attenuating other, undesired frequencies and harmonics. The ONS includes a radiation source to transmit radiation toward a portion of a surface that diffusely reflects radiation incident thereon. The spatial frequency filter is disposed to receive radiation scattered from the surface, and, in one embodiment, includes a number of non-circular openings to pass radiation of at least one pre-selected frequency while attenuating other frequencies and harmonics of the pre-selected frequency.

US Patent:

57612340, Jun 2, 1998

Filed:

Jul 9, 1996

Appl. No.:

8/677146

Inventors:

Richard R. Craig - Victoria, CA
Robert LG. Waarts - Fremont CA
David F. Welch - Menlo Park CA
John G. Endriz - Belmont CA
Dirk J. Kuizenga - Sunnyvale CA
Steven Sanders - Palo Alto CA

Assignee:

SDL, Inc. - San Jose CA

International Classification:

H01S 3091
H01S 319
H01S 300

US Classification:

372 75

Abstract:

An optical amplifier pumping system with built-in redundant reliability for lightwave communication system provides plural levels of redundancy. A first level of redundancy deals with redundancy in the form of plural primary laser diode sources in the lightwave communication system. A second level of redundancy deals with redundancy of multiple single mode laser emitters on the same chip or bar sufficiently segmented so as not to interfere with operation of or cause failure to adjacent or neighboring emitters on the same chip or bar. A third level of deals with redundancy of a plurality of fiber pump sources for pumping a plurality of serially connected injection signal fiber amplifiers.

US Patent:

6275632, Aug 14, 2001

Filed:

Nov 25, 2000

Appl. No.:

9/724106

Inventors:

Robert G. Waarts - Fremont CA
David F. Welch - Menlo Park CA
Stephen G. Grubb - Fremont CA
Jean-Luc Archambault - Linthicum MD
Steven Sanders - Palo Alto CA
Raymond Zanoni - Fremont CA
Donald R. Scifres - San Jose CA

Assignee:

SDL, Inc. - San Jose CA

International Classification:

G02B 634
H01S 330
H04J 1402

US Classification:

385 37

Abstract:

Power scaling by multiplexing multiple fiber gain sources with different wavelengths, pulsing or polarization modes of operation is achieved through multiplex combining of the multiple fiber gain sources to provide high power outputs, such as ranging from tens of watts to hundreds of watts, provided on a single mode or multimode fiber.

US Patent:

6317443, Nov 13, 2001

Filed:

Feb 10, 1999

Appl. No.:

9/248196

Inventors:

Richard R. Craig - Victoria, CA
Robert LG. Waarts - Fremont CA
David F. Welch - Menlo Park CA
John G. Endriz - Belmont CA
Dirk J. Kuizenga - Sunnyvale CA
Steven Sanders - Palo Alto CA

Assignee:

JDS Uniphase Corporation - San Jose CA

International Classification:

H01S 300
H01S 500

US Classification:

372 3804

Abstract:

A power system for a laser source comprises a plurality of semiconductor lasers or at least one laser array with plurality of independently, electrically addressable emitters. A power supply is independently connected to each of the laser emitters. A fuse device is associated with each of the laser emitters so that an electrical short of any one emitter of a laser will not cause a short to or change the power supplied to other emitters of the laser source.