Jeffrey C Wilde

6360035, Mar 19, 2002

Jun 2, 2000

09/587063

Joseph Drake - Mountain View CA
Jeffrey P. Wilde - Los Gatos CA
Joseph E. Davis - Morgan Hill CA
John F. Heanue - Fremont CA
Kurt E. Petersen - San Jose CA
Terry McDaniel - Morgan Hill CA
Jeff Drazan - Atherton CA

Seagate Technology LLC - Scotts Valley CA

G02B 626

385 18, 385 16

An optical microswitch for use with a laser beam comprising a support body and first and second output fibers carried by the body. An electrostatic microactuator is carried by the body and extends in a plane. A micromirror is disposed out of the plane. The microactuator has a mirror holder coupled to the micromirror and at least one comb drive assembly coupled to the mirror holder for driving the micromirror about an axis of rotation extending perpendicular to the plane between a first position for reflecting the laser beam to the first output fiber and a second position for reflecting the laser beam to the second output fiber.

6414911, Jul 2, 2002

Jan 6, 1999

09/226423

Jeffrey P. Wilde - Mountain View CA
Joseph E. Davis - Morgan Hill CA
John F. Heanue - Fremont CA
Kurt Petersen - San Jose CA
Terry McDaniel - Morgan Hill CA
Jeff Drazan - Atherton CA

Seagate Technology LLC - Scotts Valley CA

G11B 700

369 13, 36911229, 36911201

A magneto-optical flying head utilizes a steerable mirror in combination with a light source and a lens to write and read data onto a magneto-optical storage disk. A beam of laser light transmitted from the light source to the optical head is reflected onto a steerable micro-machined folding mirror. The reflected light from the folding mirror is directed through an embedded micro-objective GRIN lens. Fine tracking and short seeks to adjacent tracks are performed by rotating the mirror about an axis of rotation. In this way a focus spot is scanned back and forth in a direction which is approximately parallel to the radial direction of the storage disk.

6504976, Jan 7, 2003

Nov 14, 2001

09/992778

Pavel G. Polynkin - Fremont CA
Jeffrey P. Wilde - Morgan Hill CA
Michael J. Timmons - San Bruno CA

Capella Photonics, Inc. - San Jose CA

G02B 626

385 37, 385 15, 385 52, 385 24, 359115, 359124, 359130

This invention provides a spectral power monitoring apparatus that uses a diffraction grating to separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component having a predetermined relative alignment, impinging onto an array of optical power sensors. The optical power sensor array may be configured such that the power levels of the spectral channels impinging onto the optical power sensor array can be related to the electrical signals thus produced by a predetermined conversion matrix. The spectral power monitoring apparatus of the present invention further includes an alignment compensation unit, which monitors the real-time impinging position of the reference spectral component and ensures that the corresponding conversion matrix is used for converting the measured electrical signals to the optical power levels of interest. The spectral power monitoring apparatus of the present invention is well suited for optical networking applications.

6507685, Jan 14, 2003

Sep 20, 2001

09/961565

Pavel G. Polynkin - Fremont CA
Jeffrey P. Wilde - Morgan Hill CA

Capella Photonics, Inc. - San Jose CA

G02B 626

385 37, 385 15, 385 52, 359115, 359124, 359130

This invention provides a novel method and apparatus which use a wavelength-dispersing means such as a diffraction grating to spatially separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component in a spectral array with a predetermined relative alignment. By aligning the reference spectral component at a predetermined location, the spectral channels simultaneously impinge onto designated locations, e. g. , on an array of beam-receiving elements positioned in accordance with the spectral array. The reference spectral component may be further maintained at the predetermined location by way of servo-control, thereby ensuring that the spectral channels stay aligned at the designated locations. The present invention can be used to construct a new line of servo-based optical systems, including spectral power monitors and optical multiplexers/demultiplexers, for WDM optical networking applications.

6529464, Mar 4, 2003

Apr 27, 2001

09/844378

Jeffrey P. Wilde - Los Gatos CA
John F. Heanue - San Jose CA
Viatcheslav Izraelian - North York, CA
Alexander Tselikov - Fremont CA

Seagate Technology LLC - Scotts Valley CA

G11B 700

36911201, 36911205, 36911227

An optical data storage system utilizes optical fibers for transfer of information to and from storage media The storage media comprises magneto-optical storage disks. The optical fibers are low-birefringence optical fibers. As compared to the prior art, a polarization state conveyed by the optical fiber is accurately reproduced with reduced noise.

6538974, Mar 25, 2003

Aug 22, 2001

09/938225

Jeffrey P. Wilde - Los Gatos CA
Alexander Tselikov - Fremont CA
Yongwei Zhang - San Jose CA
George R. Gray - Apple Valley MN

Seagate Technology LLC - Scotts Valley CA

G11B 700

36911201, 36911221, 36911227, 385 11, 360114

An optical system and method for selective transmission of light between a source of light and set of storage disks along an optical path includes at least one polarization maintaining optical fiber optical fiber. Various noise reduction techniques are provided by substantially decreasing or eliminating spurious reflections (or the effects thereof) at end faces and of an optical fiber. In particular, various techniques, such as index matching, a cover slip method, or laser modulation, may be used to eliminate spurious reflections (or the effects thereof) at the front end face of the optical fiber. Various techniques, such index matching or multi-mode fiber splicing, may be used to eliminate spurious reflections (or the effects thereof) at the end face of the optical fiber.

6549699, Apr 15, 2003

Jan 29, 2002

10/060493

Karl Arnold Belser - San Jose CA
Jeffrey P. Wilde - Morgan Hill CA

Capella Photonics, Inc. - San Jose CA

G02B 634

385 24, 385 37, 385 34, 385 47

This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel micromirrors. The channel micromirrors are individually controllable and continuously pivotable to reflect the spectral channels into multiple output ports. As such, the inventive WSR apparatus is capable of routing the spectral channels on a channel-by-channel basis and coupling any spectral channel into any one of the output ports. The WSR apparatus of the present invention may be further equipped with servo-control and spectral power-management capabilities, thereby maintaining the coupling efficiencies of the spectral channels into the output ports at desired values. The WSR apparatus of the present invention can be used to construct a novel class of dynamically reconfigurable optical add-drop multiplexers (OADMs) for WDM optical networking applications.

6574015, Jun 3, 2003

May 18, 1999

09/314240

Alexander Tselikov - Fremont CA
Jeffrey P. Wilde - Los Gatos CA
James Blake - Paradise Valley AZ

Seagate Technology LLC - Scotts Valley CA

H04K 300

359111, 359156, 359160, 359161

A system and method for achieving, while using a laser and optical fibers, high signal-to-noise ratio. In particular, the system splits an incoming main light signal into two orthogonal polarization states, which then propagate through an optical circuit before recombining. The use of appropriate path differences ensures that the system is immune from the conversion of mode partition noise to intensity noise arising from the interference between parasitic light waves which traveled through the system in undesired polarization states.