Yongwei Q Zhang, 5319922 Via Escuela Dr, Saratoga, CA 95070

6587421, Jul 1, 2003

Mar 30, 1999

09/281753

Jeffrey P. Wilde - Los Gatos CA
Alexander Tselikov - Fremont CA
Viatcheslav Izraelian - North York, CA
John F. Heanue - San Jose CA
George R Gray - Apple Valley MN
Yongwei Zhang - San Jose CA

Seagate Technology LLC - Scotts Valley CA

G11B 700

36911201, 36911227, 369107, 369 4432

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 with conventional approaches, a polarization state conveyed by the optical fiber is accurately reproduced with reduced noise. 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, laser modulation, or angle polishing, may be used to eliminate spurious reflections (or the effects thereof) at the front end face of the optical fiber. Various techniques, such as angle cleaving, index matching, or multi-mode fiber splicing, may be used to eliminate spurious reflections (or the effects thereof) at the back end face of the optical fiber.

6609841, Aug 26, 2003

Mar 25, 1999

09/276082

Jeffrey P. Wilde - Los Gatos CA
Alexander Tselikov - Fremont CA
Yongwei Zhang - San Jose CA

Seagate Technology LLC - Scotts Valley CA

G02B 530

398159, 369 14, 369112, 360114

A system and method for achieving, while using a multimode diode laser and polarization-maintaining fibers, high signal-to-noise ratio in a magneto optical storage system. In particular, the system splits an incoming main light signal into two orthogonal polarization states, which then propagate over different distances before recombining. By pulsing the laser on and off at a high frequency and choosing an appropriate path difference for the polarization states, which is dependent upon the modulation frequency of the laser, the system eliminates first-order spectral polarization noise arising from a potential error in a key optical component.

2002017, Nov 21, 2002

Aug 22, 2001

09/938225

Jeffrey Wilde - Los Gatos CA, US
Alexander Tselikov - Fremont CA, US
Yongwei Zhang - San Jose CA, US
George Gray - Apple Valley MN, US

G02B006/26

369/112270, 385/031000

An optical system and method for selective transmission of light between a source of light and a 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 back end face of the optical fiber.

2018018, Jun 28, 2018

Jun 23, 2016

15/738114

- SHENZHEN, CN
Quanxin YUN - SHENZHEN, CN
Shaohua XIANG - SHENZHEN, CN
Radoje DRMANAC - LOS ALTOS HILLS CA, US
Snezana DRMANAC - LOS ALTOS HILLS CA, US
Yongwei ZHANG - SARATOGA CA, US

G01N 27/327
C12Q 1/6869

Provided is a microwell electrode, comprising one or more first electrodes (); one or more second electrodes () each arranged opposite to one first electrode (), wherein a channel () is provided between each first electrode and the second electrode opposite thereto, and the channel () has at least one end in communication with a chamber; and one or more guiding electrodes () located in the chamber (). The microwell electrode electrode can sensitively detect a signal and improve the read length of a sequencer greatly. The invention further relates to a method for manufacturing the micro-porous electrode, a microwell electrode array, a sensor chip, a sequencing system, and a method for analysis of a chemical substance and a nucleic acid molecule based on the microwell electrode.