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Guangzhi Zhang

from San Jose, CA
Age ~42
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Related to:
Charlie S Zhang, 67Renfang Zhang, 77Qing Zhang, 53Xiu ZhangNan Zhang, 50Zhifeng Zhang, 45Lihong Zhang, 56Ying Zhang, 41Wenyong Zhang, 61Lu Zhang, 35Yizheng Zhang, 32
Connected to:
Aimei Zhang, 44Aining Zhang, 30Aiqing Zhang, 50Alexia Y Zhang, 36Amy X Zhang, 57Angelina Zhang, 54Ashley C Zhang, 60Baomin Zhang, 55Beilei Zhang, 45Carl Zhang, 33

Guangzhi Zhang Phones & Addresses

  • San Jose, CA
  • Santa Clara, CA
  • Cupertino, CA
  • San Francisco, CA
  • Daly City, CA

Work

Company: Newport corporation Jul 2016 to Apr 2018 Position: Senior manufacturing engineering manager

Education

School / High School: University of Toronto 1995 to 1997

Skills

Telecommunications • Fiber Optics • Rf • Embedded Systems • Ethernet • Six Sigma • Laser • Testing • Electronics • Research and Development • Optical Communications • Laser Sensors • Nano Positioning Sensor and Drive • Optical Testing

Industries

Telecommunications

Resumes

Resumes

Guangzhi Zhang Photo 1

Chief Manufacturing Engineer

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Location:
Santa Clara, CA
Industry:
Telecommunications
Work:
Newport Corporation Jul 2016 - Apr 2018
Senior Manufacturing Engineering Manager
Mks Instruments Jul 2016 - Apr 2018
Chief Manufacturing Engineer
Newport Corporation Jun 2013 - Jun 2016
Manufacturing Engineering Manager
Laseram, Inc. Jun 2009 - May 2013
General Manager
Aoptix Technologies May 2005 - May 2009
Senior Optical Materials Engineer
Education:
University of Toronto 1995 - 1997
The University of Electro - Communications 1991 - 1995
Doctorates, Doctor of Philosophy, Philosophy Tsinghua University 1985 - 1988
Master of Science, Masters, Engineering, Applied Physics, Physics Shandong University 1979 - 1983
Bachelors
Skills:
Telecommunications
Fiber Optics
Rf
Embedded Systems
Ethernet
Six Sigma
Laser
Testing
Electronics
Research and Development
Optical Communications
Laser Sensors
Nano Positioning Sensor and Drive
Optical Testing

Business Records

Name / Title
Company / Classification
Phones & Addresses
Guangzhi Zhang
President
LASERAM INC
Business Services at Non-Commercial Site · Business Services at Non-Commercial Site Mfg Semiconductors/Related Devices
19361 Dougherty Ave, Morgan Hill, CA 95037

Publications

Us Patents

Tunable Laser With Suppression Of Spontaneous Emission

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US Patent:
6608847, Aug 19, 2003
Filed:
Sep 28, 2001
Appl. No.:
09/967885
Inventors:
Guangzhi Z. Zhang - San Jose CA
Andrew Davidson - Mountain View CA
David Robinson - Cupertino CA
Carter Hand - Los Altos CA
Mark Wippich - Campbell CA
Murray Reed - Menlo Park CA
Weizhi Wang - San Jose CA
Assignee:
New Focus, Inc. - San Jose CA
International Classification:
H01S 310
US Classification:
372 20, 372 98, 372 92, 372 99, 372 9
Abstract:
A laser apparatus and method with compact cavity design that provides suppression of source spontaneous emission (SSE) and amplified spontaneous emission (ASE) light with minimal loss. The laser comprises a gain medium emitting a light beam along an optical path, a tuning element positioned in the optical path and configured feed back light of a selected wavelength to the gain medium and configured to define a first output beam directed along a first output path, a partial reflector located in the optical path and positioned to create a second output beam directed along a second output path substantially parallel to the first output path; and having a spontaneous emission component that is spatially separated from the selected wavelength. The second output beam can be coupled into optical fiber and produce a coherent light source with high spectral purity and tunable wavelengths.

External Cavity Laser With High Spectral Purity Output

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US Patent:
6788726, Sep 7, 2004
Filed:
Feb 26, 2002
Appl. No.:
10/086137
Inventors:
Guangzhi Z. Zhang - San Jose CA
Carter F. Hand - Los Altos CA
Alejandro D. Farinas - Mountain View CA
Murray Reed - Menlo Park CA
Assignee:
New Focus, Inc. - San Jose CA
International Classification:
H01S 308
US Classification:
372102, 372107
Abstract:
A laser apparatus and method that provide for suppression of source spontaneous emission (SSE) and amplified spontaneous emission (ASE) light in laser output with minimal intracavity loss. The apparatus comprises a gain medium emitting a light beam, a wavelength element positioned in the light beam, and a non-reciprocal pickoff positioned in the light beam between the gain medium and wavelength element. The non-reciprocal pickoff may comprise a polarization-dependent beam splitter and a non-reciprocal polarization rotator positioned in the light beam before the wavelength selection element. The non-reciprocal pickoff may further comprise a reciprocal polarization rotator positioned in the light beam after the polarization-dependent beam splitter. The method may comprise emitting a light beam from a gain medium outward along an optical path, allowing the outward light beam to interact with a tunable element, returning a spectrally cleaned light beam along the optical path to the gain medium from the tunable element, and non-reciprocally picking off a portion of the returning, spectrally cleaned light beam from the optical path and directing the portion along an output path.

External Cavity Laser With Dispersion Compensation For Mode-Hop-Free Tuning

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US Patent:
6940879, Sep 6, 2005
Filed:
Dec 6, 2002
Appl. No.:
10/313624
Inventors:
Guangzhi G. Zhang - San Jose CA, US
Assignee:
New Focus, Inc. - San Jose CA
International Classification:
H01S003/10
US Classification:
372 20, 372 34
Abstract:
A tunable external cavity laser equipped with an optical path length compensator for adjusting an optical path length of the cavity, a wavelength selector for selecting an operating wavelength of the light in a single longitudinal mode and a dispersion compensator for compensating a dispersion of the light. In order to achieve mode-hop-free tuning the laser has a synchronizer for synchronizing the optical path length compensator, the wavelength selector and the dispersion compensator to maintain the light in the selected single longitudinal mode while the wavelength selector tunes the operating wavelength. The laser employs a pair of prisms and a wedge filter or a gap filter to perform the functions of the optical path length compensator, the wavelength selector and the dispersion compensator.

Piezoelectric-Tuned External Cavity Laser

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US Patent:
7388890, Jun 17, 2008
Filed:
Dec 13, 2004
Appl. No.:
11/011461
Inventors:
Lam Thanh Le - Fremont CA, US
Wade Wai-Chung Tang - San Jose CA, US
Guangzhi Z. Zhang - San Jose CA, US
Assignee:
Bookham Technology PLC - Northamptonshire
International Classification:
H01S 3/10
US Classification:
372 20, 372103, 372 9
Abstract:
A tunable laser comprising: a foundation including a first side and an oppositely facing second side and including a hole extending from the first side to the second side; a tuning assembly including a base, a fine tuning arm and a rotational flex bearing disposed adjacent the first side of the foundation; wherein the base is disposed adjacent to the first side of the foundation; wherein one end of the flex bearing is secured to the base; wherein the other end of the flex bearing is secured to the fine tuning arm; wherein a portion of the fine tuning arm extends at least partially into the hole; an external cavity laser including a gain medium, a dispersion medium and a reflective member disposed adjacent to the second side of the foundation; wherein the gain medium and the dispersion medium grating are secured in a fixed relation relative to the each other; wherein the reflective member is secured to the portion of the arm extending into the hole; and a piezoelectric device with one end secured to the base and another end secured to the arm.

Continuously Grating-Tuned External Cavity Laser With Automatic Suppression Of Source Spontaneous Emission And Amplified Spontaneous Emission

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US Patent:
20010040910, Nov 15, 2001
Filed:
Mar 23, 2001
Appl. No.:
09/816517
Inventors:
Guangzhi Zhang - San Jose CA, US
I-Fan Wu - Fremont CA, US
International Classification:
H01S003/08
US Classification:
372/102000
Abstract:
Disclosed is an external cavity diode laser system comprising a dispersive unit having a proximal and distal end; a gain element, located proximally from the dispersive unit, and that produces coherent light incident upon the dispersive unit, and the dispersive unit dispersing the incident coherent light into dispersed light, the dispersed light comprising a reflected diffraction beam and at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission; a guiding unit, located proximally from the dispersive unit, that guides the dispersed light diffracted upon it from the dispersive unit while maintaining an angular separation between the reflected diffraction beam and at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission; and a physical filtering device that physically filters the reflected diffraction beam from the spatially separated at least one angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission guided to the physical filtering device by the guiding unit to produce a low-noise laser beam. Also disclosed are methods relating to producing a low-noise laser beam.

Continuously Grating-Tuned External Cavity Laser With Automatic Suppression Of Source Spontaneous Emission And Amplified Spontaneous Emission

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US Patent:
20010043637, Nov 22, 2001
Filed:
Mar 23, 2001
Appl. No.:
09/816747
Inventors:
Guangzhi Zhang - San Jose CA, US
I-Fan Wu - Fremont CA, US
International Classification:
H01S003/08
US Classification:
372/098000
Abstract:
Disclosed is an external cavity diode laser system that includes a dispersive unit; a gain element producing coherent light incident upon the dispersive unit, and the dispersive unit dispersing the incident coherent light into dispersed light, the dispersed light comprising a reflected diffraction beam and at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission; a guiding dispersion unit that guides the dispersed light diffracted upon it from the dispersive unit while maintaining an angular separation between the reflected diffraction beam and at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission; and a physical filtering device that physically filters the reflected diffraction beam from the spatially separated at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission guided to the physical filtering device by the guiding unit to produce a low-noise laser beam. Also disclosed are methods relating to producing low-noise laser beams.

Continuously Grating-Tuned External Cavity Laser With Automatic Suppression Of Source Spontaneous Emission And Amplified Spontaneous Emission

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US Patent:
20010050930, Dec 13, 2001
Filed:
Mar 23, 2001
Appl. No.:
09/816532
Inventors:
Guangzhi Zhang - San Jose CA, US
I-Fan Wu - Fremont CA, US
International Classification:
H01S003/10
US Classification:
372/020000
Abstract:
Disclosed is an external cavity diode laser system including a dispersive unit; a gain element producing coherent light incident upon the dispersive unit, and the dispersive unit dispersing the incident coherent light into dispersed light, the dispersed light comprising a reflected diffraction beam and at least one of angularly-separated source spontaneous emission or angularly-separated amplified spontaneous emission; a tuning reflector rotably mounted with respect to the dispersive unit wherein rotation of the tuning reflector tunes the dispersed light; and a coupling unit located along a beam path of the reflected diffraction beam. Also disclosed are methods for generating a low-noise laser beam.

Narrow Band Laser With Wavelength Stability

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US Patent:
20070127539, Jun 7, 2007
Filed:
Sep 28, 2005
Appl. No.:
11/238337
Inventors:
Weizhi Wang - San Jose CA, US
Guangzhi Zhang - San Jose CA, US
Lam Le - Fremont CA, US
International Classification:
H01S 3/08
US Classification:
372101000, 372107000
Abstract:
An external cavity diode laser system includes a thin film filter. The output facet of the laser diode is coated with a partial reflection coating and the cavity side facet is coated with an anti-reflection coating. A roof-top prism or corner cube retroreflector serves as the laser cavity end reflector and provides stability of the wavelength of the output over time. The laser cavity lies between the partial reflective coated facet of the laser diode and retroreflector. A collimating lens and a thin film filter are located between the end reflector and the laser diode cavity side facet. The lasing wavelength can be adjusted during either manufacture or operation by tilting the filter. Also included is thermal compensation in the mounting for the retroreflector to compensate for thermal movement of the laser system cavity.
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Guangzhi Zhang from San Jose, CA, age ~42 Get Report